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Step 18 - Mounting the bottom frame: right side
Step 12 - Connecting the xBuddy extension board
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Related Manuals for Original Prusa CORE One
Summary of Contents for Original Prusa CORE One
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Page 1: Table Of Contents
Table of Contents 1. Introduction ........................................... Step 1 - Preparing the kit ............Step 2 - How to navigate through the manual ................ Step 3 - View high resolution images .............. Step 4 - All the required tools are included .............. - Page 2 ............. Step 13 - Inserting grommets: xBuddy box ................Step 14 - Wi-Fi: parts preparation ................. Step 15 - Assembling the Wi-Fi ..............Step 16 - Installing the Wi-Fi assembly ..............Step 17 - Back panel: parts preparation ............Step 18 - Installing grommets: back panel top ............
- Page 3 ............Step 14 - Guiding the RGB LED strip cable ..............Step 15 - Bed mounts: parts preparation ..............Step 16 - Assembling the bed mounts ................Step 17 - Securing the bed mounts ..............Step 18 - Bed mounts: inserting the nuts .........
- Page 4 .............. Step 27 - Installing the motor mount right ..............Step 28 - Installing the motor mount left .............. Step 29 - Installing the belt-tensioner-left ............Step 30 - Installing the belt-tensioner-right ..............Step 31 - Linear rail: parts preparation ................
- Page 5 6. Nextruder assembly ..................................Step 1 - Tool necessary for this chapter .......... Step 2 - Nextruder idler assembly: parts preparation ..............Step 3 - Assembling the extruder idler ........Step 4 - Assembling the extruder: parts preparation I........
- Page 6 ................ Step 54 - LoveBoard: Wiring check ................Step 55 - Covering the LoveBoard ................Step 56 - Guiding the main cable ....................Step 57 - Haribo time ......................Step 58 - Done 7. Bodywork & Electronics ................................Step 1 - Tools necessary for this chapter ...............
- Page 7 ..............Step 6 - Assembling the top cover II................. Step 7 - Testing the ventilation ................Step 8 - Installing the top cover ..............Step 9 - Side covers: parts preparation ..................Step 10 - Removing the foil .................. Step 11 - Covering the left side ................
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Page 9: Introduction
1. Introduction Prusa CORE One kit assembly... -
Page 10: Step 1 Preparing The Kit
1. Introduction STEP 1 Preparing the kit Welcome to the guide for assembling setting up your Prusa CORE One kit. Follow these steps to ensure your printer is ready for its first print. Please prepare the kit received from Prusa Research. -
Page 11: Step 3 View High Resolution Images
All the required tools are included Tool package includes: Tools can be found in Electronics & fasteners package. Needle-nose pliers (1x) Philips (PH2) screwdriver (1x) Universal wrench (1x) Wrench size 13-16 mm (1x) Allen key set Torx key set Prusa CORE One kit assembly... -
Page 12: Step 5 Additional Utilities For This Guide
Not into packages for individual chapters, as it was with previous printers. The instructions will specify the package for each part, with the exception of fasteners, which are always located in the Fasteners package. Prusa CORE One kit assembly... -
Page 13: Step 7 Spare Bag
STEP 8 Printed parts - versioning Most of the 3D printed parts on Prusa CORE One are marked with their version. E, F and Gx series (e.g. E1) - those parts are printed on Prusa Research farm and are distributed with the kit. -
Page 14: Step 9 We Are Here For You
Lost in the instructions, missing screw or cracked printed part? Let us know! You can contact us using the following channels: Using comments under each step. Using our 24/7 live chat here at help.prusa3d.com Writing an email to info@prusa3d.com Prusa CORE One kit assembly... -
Page 15: Step 10 Pro Tip: Inserting The Nuts
Every time we recommend using the "screw pulling technique", you will be reminded with Joe's avatar ;) Parts in the pictures are used as an example. Prusa CORE One kit assembly... -
Page 16: Step 11 - Important: Electronics Protection
Be extra cautious in rooms with carpets, which are often a source of electrostatic energy. Clothes made of wool or certain synthetic fabrics can easily gather static electricity too. It is safer to wear cotton clothing for the assembly. Prusa CORE One kit assembly... -
Page 17: Step 12 Reward Yourself
STEP 12 Reward yourself Building the CORE One is a rewarding experience. After finishing each chapter, reward yourself. There is a bag of Haribo bears in the box just for that! The biggest issue from our experience (MK4S, MK4, MK3S+, MK3S, MK3, MK2S, ...) is inadequate bear consumption. -
Page 18: Step 13 How To Successfully Finish The Assembly
STEP 13 How to successfully finish the assembly To successfully finish the CORE One kit please follow all these: Always read all the instructions at the current step first, it will help you to understand what you need to do. Don't cut or trim unless you are told to!!! Don't follow pictures only! It is not enough, the written instructions are as brief as they could be. -
Page 19: Step 14 Prepare Your Desk
It’s highly recommended to place a soft pad on your workbench. Some sheet metal parts have sharp edges that could scratch the surface. You can use a piece of cardboard as a protective pad. OK, we are ready. Let's start! Go to chapter 2. Frame assembly Prusa CORE One kit assembly... -
Page 20: Base Assembly
2. Base assembly Prusa CORE One kit assembly... -
Page 21: Step 1 Tools Necessary For This Chapter
T10 torx key / T10 torx screwdriver STEP 2 Base assembly: parts preparation For the following steps, please prepare: Bottom panel (1x) found in the Metal parts 1/3 package Zip tie (6x) found in the Electronics & Fasteners package Prusa CORE One kit assembly... -
Page 22: Step 3 Inserting The Zip Ties
Z-axis right motor (1x) found in the Motor set box Z-motor-mount (3x) found in the Printed parts package Motor washer (3x) found in the Electronics & Chamber parts package Z-rod-mount (2x) found in the Printed parts package M3x8 screw (24x) Prusa CORE One kit assembly... -
Page 23: Step 5 Installing The Motor Mounts
In the following instructions, we will refer to the front and rear sides of the assembly. The front side has TWO motors, while the rear side has ONE motor. We will remind you along the way, but it’s good to keep this in mind :). Prusa CORE One kit assembly... -
Page 24: Step 7 Securing The Rear Motor
Use the 13-16 wrench to rotate the rod mount 90 degrees, locking it into place. Secure the motor using four M3x8 screws. Tighten them completely. Make sure the screws stay straight and do not tilt as you tighten them. Prusa CORE One kit assembly... -
Page 25: Step 9 Installing The Front Motor Left
Rear profile (1x) with two holes on the flat side - found in the Metal parts 1/3 package Universal profile (2x) no holes on the flat side - found in the Metal parts 1/3 package Spacer pin (2x) found in the Electronics & Fasteners package M3x4rT screw (4x) Prusa CORE One kit assembly... -
Page 26: Step 11 Assembling The Bottom Profile: Front + Left
Join the rear profile with the universal left profile together. Make sure the flange is under the rear profile, not on top. Align the holes in both parts. Join both parts together with the M3x4rT screw. Prusa CORE One kit assembly... -
Page 27: Step 13 Assembling The Bottom Profile: Right
Insert the spacer pin into the hole in the front profile protrusion. Push firmly on the spacer pin so that it fits perfectly into the hole. Use the same procedure for the second spacer pin. Prusa CORE One kit assembly... -
Page 28: Step 15 Anti-Vibration Feet: Parts Preparation
Place the bottom frame according to the picture. The front profile must be facing you. Peel off the protective layer from all anti-vibration feet. Stick one anti-vibration foot in each corner of the frame. Align it with the outer edge of the flat side of the profile. Prusa CORE One kit assembly... -
Page 29: Step 17 Installing The Bottom Frame
Align the threaded hole in the bottom panel with the hole in the profile. Join both parts together with the M3x4rT screw. Move to the rear corner of the right side. Align the holes in the base and the profile and secure it with the M3x4rT screw. Prusa CORE One kit assembly... -
Page 30: Step 19 Mounting The Bottom Frame: Rear + Left + Front
If you don’t get the exact number in the last row, we recommend finding the nearest candy store and buying the missing ones. Eat the first row. Prusa CORE One kit assembly... -
Page 31: Step 21 Done
2. Base assembly STEP 21 Done Congratulations! You just assembled the base assembly. Set the assembly aside for now and let's move to the next chapter. Prusa CORE One kit assembly... -
Page 32: Back Assembly
3. Back assembly Prusa CORE One kit assembly... -
Page 33: Step 1 Tools Necessary For This Chapter
For the following steps, please prepare: Delta PSU 240 W 24 V (1x) power supply M4x6r screw (2x) from the Others package xBuddy power cables (2x) found in the Electronics package Power panic cable (1x) found in the Electronics package Prusa CORE One kit assembly... -
Page 34: Step 3 Preparing The Psu
Leave at least a 4 mm (0.16 in) gap between the screw head and the PSU. Slightly loosen all four power terminal screws on the PSU. Do not remove them. 3-4 turns are enough. Prusa CORE One kit assembly... -
Page 35: Step 4 Power Cables Info
The red cable (positive) may have a black stripe on it. Similarly, the black cable (negative) can have a red stripe on it. Do not connect any cables yet, wait until you have been prompted. Prusa CORE One kit assembly... -
Page 36: Step 5 Connecting The Psu
I. For the following steps, please prepare: CORE One xBuddy box (1x) found in the Metal parts 3/3 package Grommet 19/16 mm (2x) found in the Electronics & Fasteners package Thermal pad 40x12x2.2 mm (1x) found in the Electronics & Fasteners package Thermal pad 12x12x2.2 mm (2x) found in the Electronics &... -
Page 37: Step 7 - Xbuddy: Parts Preparation
Peel off the blue protective layer from all thermal pads. Pro tip: If the edge of the layer is difficult to lift, you can use the thin side of the Assembly-multi-tool to help separate the protective layer. Prusa CORE One kit assembly... -
Page 38: Step 9 Installing The Xbuddy
Before fully attaching it completely, center the holes in the board with the holes (columns) in the xBuddy box. Fix the position of the xBuddy extension board by inserting four M3x6 screws. Tighten them completely. Prusa CORE One kit assembly... -
Page 39: Step 11 - Installing Zip Ties
Plug the xBuddy extension connector with the free red cable to the xBuddy extension board. Leave the red cable free for now. Plug the other end of the xBuddy extension cable to the xBuddy board. Prusa CORE One kit assembly... -
Page 40: Step 13 Inserting Grommets: Xbuddy Box
STEP 14 Wi-Fi: parts preparation For the following steps, please prepare: ESP-WiFi (1x) found in the Electronics package CORE-One-Wifi-cover (1x) found in the Printed parts package M3x12 screw (1x) M3x6 screw (2x) Prusa CORE One kit assembly... -
Page 41: Step 15 Assembling The Wi-Fi
Close the WiFi cover carefully, ensuring the pins of the ESP module are properly engaged in the connector on the xBuddy. Secure the cover with the M3x12 screw. Put the assembly aside for a while. Prusa CORE One kit assembly... -
Page 42: Step 17 Back Panel: Parts Preparation
Insert the sealing plug into the center hole. The sealing plug is not symmetrical. Insert the side with the smaller diameter facing downward. Insert one small grommet to the left circle hole. Insert one small grommet into the oval hole. Prusa CORE One kit assembly... -
Page 43: Step 19 Installing Grommets: Sides + Bottom
Carefully insert the PSU into the rear panel pocket. Align the screws on the PSU to the holes on the left side of the back panel. Slide the PSU so that the screws go through the holes. Prusa CORE One kit assembly... -
Page 44: Step 22 Aligning The Xbuddy Box Assembly
Carefully insert the xBuddy box assembly into the rear panel pocket. Align the screws on the xBuddy box to the holes on the right side of the back panel. Slide the xBuddy box so that the screws go through the holes. Prusa CORE One kit assembly... -
Page 45: Step 23 Mounting The Xbuddy Box
Fix the PSU and xBuddy box assembly to the back panel by tightening two M3x4rT screws. STEP 24 Power cables cover: parts preparation For the following steps, please prepare: PSU-cable-cover (1x) found in the Printed parts package M3nS nut (2x) M3x10rT screw (2x) 6-32 Power Terminal Screw (4x) Prusa CORE One kit assembly... -
Page 46: Step 25 Connecting The Power Cables
Arrange the PSU cables as shown, ensuring that no obstructions are around the threaded holes in the PSU and xBuddy box. STEP 26 Preparing the PSU-cable-cover Insert one M3nS nut into the hole on each end of the PSU-cable-cover. Ensure the holes are aligned. Prusa CORE One kit assembly... -
Page 47: Step 27 Covering The Psu Cables
Fan grid (1x) found in the Electronics & Chamber parts package Chamber thermistor 260 mm (1x) found in the Electronics & Chamber parts package Zip tie (1x) Cooling fan (2x) found in the Electronics & Chamber parts package M3x30 screw (4x) Prusa CORE One kit assembly... -
Page 48: Step 29 Assembling The Fan Grid
Make sure that the header of the zip tie is facing the same way as in the picture. It must be on the same side as where the cable starts. Put the assembly aside for a while. Prusa CORE One kit assembly... -
Page 49: Step 30 Attaching The Fans
Make sure that the thermistor is pointing up and its cable runs under the grid. Align holes in the fans, fan grid and the back panel. Secure the fan assembly to the back panel with four M3x30 screws. Do not overtighten the screws to avoid damaging the grid. Prusa CORE One kit assembly... -
Page 50: Step 32 Rear Profiles: Parts Preparation
Secure the corner on the other side with a second M3x4rT screw - each corner will be secured with two M3x4rT screws. Proceed the same with the second rear profile on the rear left corner. Prusa CORE One kit assembly... -
Page 51: Step 34 Mounting The Back Panel
STEP 35 Stepper splitter: parts preparation For the following steps, please prepare: Stepper splitter (1x) found in the Electronics & Chamber parts package Stepper splitter cable (1x) found in the Electronics & Fasteners package Prusa CORE One kit assembly... -
Page 52: Step 36 Guiding The Stepper Splitter Cable
Do not tighten the zip ties at this moment. STEP 37 Connecting the Stepper splitter Connect the Z motor cables to the stepper splitter: Stepper splitter cable Z-axis motor R Z-axis motor L Z-axis motor L Prusa CORE One kit assembly... -
Page 53: Step 38 Mounting The Stepper Splitter
STEP 39 LCD cable: parts preparation For the following steps, please prepare: xLCD cable (1x) found in the Electronics & Fasteners package Main FE cable (1x) found in the Electronics & Fasteners package Prusa CORE One kit assembly... -
Page 54: Step 40 Guiding The Lcd Cable
Note: We will always indicate which connector to use in the following steps. However, it’s a good idea to remember this overview for easier assembly. Prusa CORE One kit assembly... -
Page 55: Step 43 Guiding The Fe Cable (No. 2)
Slide the FE cable connector completely onto the Faston connector. STEP 43 Guiding the FE cable (no. 2) Take the FE cable connector number 2. The round connector nearby. Insert the connector loosely into the hole in the bottom panel. Prusa CORE One kit assembly... -
Page 56: Step 44 Guiding The Fe Cable (No. 1)
There’s no need to fully tighten the zip ties. However, the cables must still be easy to move for any necessary length adjustment during connection. Carefully turn the printer back on its feet. Focus on the back side. Prusa CORE One kit assembly... -
Page 57: Step 46 Fe Cable - Xbuddy: Parts Preparation
Guide the Stepper splitter cable alongside the xBuddy box and connect it to the second slot from the right in the top row on the xBuddy board (labeled ZR). Prusa CORE One kit assembly... -
Page 58: Step 48 Plugging The Xlcd Cable
Carefully cut off the excess length of the zip tie. Avoid cutting cables! STEP 49 PSU-cover: parts preparation For the following steps, please prepare: CORE-One-PSU-cover (1x) found in the Printed parts package M3x10 screw (2x) Prusa CORE One kit assembly... -
Page 59: Step 51 Haribo Time
Attach the PSU-cover over the PSU connectors and secure with two M3x10 screws. STEP 51 Haribo time Time to recharge for the next chapter! Eat the second row. No cheating—eat only the number shown! Prusa CORE One kit assembly... -
Page 60: Step 52 Done
3. Back assembly STEP 52 Done Congratulations! The back assembly is installed. Now continue to the next chapter. Prusa CORE One kit assembly... -
Page 61: Heatbed Assembly
4. Heatbed assembly Prusa CORE One kit assembly... -
Page 62: Step 1 Tools Necessary For This Chapter
4. Heatbed assembly STEP 1 Tools necessary for this chapter For this chapter, please prepare: Needle-nose pliers Universal wrench Wrench 13-16 Philips (PH2) screwdriver 2.5mm Allen key 2.0mm Allen key T10 torx key / T10 torx screwdriver Prusa CORE One kit assembly... -
Page 63: Step 2 Heatbed: Parts Preparation
The one on the left with "GND" sign must be connected to the BLACK WIRE. Take both Heatbed cables. Note the label on each cable. For the following steps, prepare the ends of the cables without the label. Prusa CORE One kit assembly... -
Page 64: Step 4 Heatbed Cable Assembly (Part 2)
Guide the cables from the heatbed slightly towards each other (in a "V" shape). Then tighten the nuts firmly from underneath. STEP 5 Bed-cable-cover-bottom: parts preparation For the following steps, please prepare: Bed-cable-cover-bottom (1x) M3n nut (3x) M3x10rT screw (1x) Prusa CORE One kit assembly... -
Page 65: Step 6 Attaching The Cable Cover
Heatbed carriage (1x) found in the Metal parts 1/3 package Expansion joint (8x) found in the Electronics package M3x4r screw (8x) The Fasteners package includes both M3x4r and M3x4rT screws. Make sure you have the correct type prepared. Prusa CORE One kit assembly... -
Page 66: Step 8 Preparing The Heatbed Carriage
Maintain the expansion joint in the correct position and firmly tighten the M3x4r screw through the expansion joint with a 2.0 mm Allen key. Repeat this procedure for all other expansion joints. Follow their correct position! Prusa CORE One kit assembly... -
Page 67: Step 10 Rgb Led Strip: Parts Preparation
Align the middle LED with the screw on the carriage. The RGB LED strip cable must point to the right. After sticking, press lightly on the blank areas of the strip to ensure adhesion. Do not touch LEDs and resistors! Prusa CORE One kit assembly... -
Page 68: Step 12 Attaching The Led Strip Diffuser
The other side of the cover is glossy. Attach the LED strip cover to the assembly, matte side up. Secure all parts together by inserting and tightening two M3x10rT screws. Do not overtighten the screws, as it may crack the cover. Prusa CORE One kit assembly... -
Page 69: Step 14 Guiding The Rgb Led Strip Cable
CORE-One-bed-spacer-rear (1x) found in the Printed parts package LM8UU bearing (2x) found in the Electronics package The bearings in the kit are packed in blue bags. M3x10 screw (6x) M3n nut (2x) M3nN nut (10x) Prusa CORE One kit assembly... -
Page 70: Step 16 Assembling The Bed Mounts
Keep the bearing in the position and secure it by inserting and tightening one M3x10 screw. Ensure that the top surface of the bearing is flush with the top surface of the plastic part. Follow the same procedure with CORE-One-bed-mount-right. Prusa CORE One kit assembly... -
Page 71: Step 18 Bed Mounts: Inserting The Nuts
Turn the heatbed carriage piece with the "forks" facing you and with the expansion joints facing up. Take the CORE-One-bed-mount-right part and slide it under the right fork - with the bearing on the right. Fix it with two M3x10 screws. Prusa CORE One kit assembly... -
Page 72: Step 21 Installing The Bed-Mount-Left
Mounting the heatbed: parts preparation For the following steps, please prepare: M3x12bT countersunk screw (1x) Note: The package may label this screw as M3x12cT. Spacer 6x3.1x8 mm (1x) found in the Nextruder assembly package M3x4bT countersunk screw (8x) Prusa CORE One kit assembly... -
Page 73: Step 23 Mounting The Heatbed
After all screws are in place, tighten them in the following sequence: Center screw First four screws (edges) Last four screws (corners) Tighten the screws gently, but firmly. Prusa CORE One kit assembly... -
Page 74: Step 25 Covering The Cables: Parts Preparation
Guide the heatbed thermistor cable under the RGB LED cable, and insert the heatbed thermistor cable into the cable channel in the cable cover. Route the RGB LED strip cable through the cable channel. Guide the heatbed power cables through the cable channel. Prusa CORE One kit assembly... -
Page 75: Step 27 Covering The Heatbed Cables
For the following steps, please prepare: Trapezoidal nut (3x) Two trapezoidal nuts are included in the motors set package, and one nut can be found in the Electronics & Chamber parts package. M3x18 screw (6x) Prusa CORE One kit assembly... -
Page 76: Step 29 Attaching The Heatbed Assembly
Keep in mind that there is a spacer on the rear motor. Avoid the spacer by the heatbed cable. The heatbed cable must run under the heatbed and behind the rear motor. Prusa CORE One kit assembly... -
Page 77: Step 30 Mounting The Heatbed Assembly: Rear Motor
Ensure the correct orientation of the part. The protruding section must face downwards. Align the holes in the trapezoidal nut with those in the plastic part. Either pair of holes can be used. Secure all the part together with two M3x18 screws. Prusa CORE One kit assembly... -
Page 78: Step 32 Mounting The Heatbed Assembly: Front Motor Right
Locate the grommet hole at the top right of the rear assembly and push the heatbed cables through in the following order: Guide the RGB LED strip cable through the hole first. Route the thermistor cable through the hole. Finally, insert both power cables of the hole. Prusa CORE One kit assembly... -
Page 79: Step 34 - Attaching The Heatbed Cables
No more than 1 cm (0.39 in) of the textile sleeve should protrude from the back side. STEP 35 Securing the heatbed cables: parts preparation For the following steps, please prepare: Zip tie (1x) 6/32" terminal screw (2x) Prusa CORE One kit assembly... -
Page 80: Step 36 Securing The Textile Sleeve
‘RGBW LED.’ Connect it to the first slot from the right on the xBuddy extension board. Guide the heatbed power cables along with the thermistor through the left hole. Leave the cables hanging freely for now. Prusa CORE One kit assembly... -
Page 81: Step 38 Connecting The Heatbed Power Cables
Tighten firmly. Plug the heatbed thermistor connector to the slot next to the power terminals. STEP 39 Haribo time Time for another quick energy boost! Eat the third row. With one extra treat. You deserve it! Prusa CORE One kit assembly... -
Page 82: Step 40 Done
4. Heatbed assembly STEP 40 Done Congratulations! You have just assembled and installed the heatbed. Let's go to the next chapter. Prusa CORE One kit assembly... -
Page 83: Corexy Assembly
5. CoreXY assembly Prusa CORE One kit assembly... -
Page 84: Step 1 Tools Necessary For This Chapter
Rod holder right (1x) found in the CORE XY parts + hinges + HB set package Rod holder rear (2x) found in the CORE XY parts + hinges + HB set package M3x10 screw (6x) M3x6 screw (4x) CoreXY plate (1x) found in the Metal parts 1/3 package Prusa CORE One kit assembly... -
Page 85: Step 3 Assembling The Rod Holders
Divide the Rod holder left and the Rod holder right into the sides of the front: Ensure you are preparing the correct part for the correct side. Use the chamfers on both parts as a reference for alignment. Rod holder left Rod holder right Prusa CORE One kit assembly... -
Page 86: Step 5 Installing The Front Rod Holders
XY-carriage (2x) found in the Printed parts package LM10LUU linear bearing (2x) found in the CORE XY parts + hinges + HB set package GT2-20 Idler pulley (4x) found in the Electronics & Fasteners package M3x8rT black screw (8x) M3x18 screw (10x) Prusa CORE One kit assembly... -
Page 87: Step 7 Assembling The Xy-Carriages
Install it to the Linear holder with three M3x18 screws. Turn the Linear holder upside down. From the XY-carriage side, attach the LM10LUU linear bearing to the holder and secure it with four M3x8rT screws. Prusa CORE One kit assembly... -
Page 88: Step 9 Assembling The Linear Holder Right
Slightly lift the CoreXY plate and from the plate's inner side loosely attach the Linear holder of the assemblies. Linear holder left Linear holder right The linear holders are now only loosely seated. Prusa CORE One kit assembly... -
Page 89: Step 11 Smooth Rods Info
Push both 10mm smooth rods through the LM10LUU bearing to the front rod holders. Make sure the screws on the rear rod holders are pointing out of the frame. Line up the front end of the 10mm smooth rods with the front rod holders. Prusa CORE One kit assembly... -
Page 90: Step 13 Securing The Rear Rod Holders
Do not tighten the bottom screw. Focus on the front right holder (now on the left) and secure the rod by tightening the screw in the holder. Do not tighten the bottom screw. Prusa CORE One kit assembly... -
Page 91: Step 15 Motor Mounts: Parts Preparation
Spacer 3.2/6x2 (2x) found in the Electronics & Fasteners package M3nS nut (1x) The list continues in the next step... STEP 16 Motor mounts: part preparation GT2-20 Idler pulley (6x) found in the Electronics & Fasteners package Prusa CORE One kit assembly... -
Page 92: Step 17 Assembling The Xy-Motor-Mount-Right I
Insert another pulley into the XY-motor-mount-right. Secure it with M3x18 screw. The plastic part has no pre-cut thread, so the screw will create it as you tighten. Slight resistance is expected. Insert the M3nS nut into the XY-motor-mount-right. Prusa CORE One kit assembly... -
Page 93: Step 19 Assembling The Xy-Motor-Mount-Left I
Insert another pulley into the part. Secure it with M3x18 screw. Do not overtighten the screw. The plastic part has no pre-cut thread, so the screw will create it as you tighten. Slight resistance is expected. Prusa CORE One kit assembly... -
Page 94: Step 21 Belt Tensioners: Parts Preparation I
Insert one M3nS nut into each Belt-tensioner-pulley. Slide the Belt-tensioner-left onto the Belt-tensioner-pulley. Ensure the parts are oriented correctly, as shown. Insert the M3x30 screw through the Belt-tensioner-left into the Belt-tensioner- pulley. Do not tighten completely! 3-4 turns are sufficient. Prusa CORE One kit assembly... -
Page 95: Step 24 - Assembling The Belt Tensioner Left
Insert the GT2-20 Idler pulley pulley into the Belt-tensioner-pulley-right. Secure it with the M3x18 screw. The plastic part has no pre-cut thread, so the screw will create it as you tighten. Slight resistance is expected. Prusa CORE One kit assembly... -
Page 96: Step 26 - Installing The Belt Tensioners: Parts Preparation
CoreXY plate. Slide the motor-mount-right under the CoreXY plate, ensuring the rectangular protrusion fits into the cutout. Align the holes in both parts and secure them with an M3x6 screw in the designated hole Prusa CORE One kit assembly... -
Page 97: Step 28 Installing The Motor Mount Left
Place the belt-tensioner-left assembly in the front left corner of the CoreXY plate. Align it with the front and inner side edges. Line up the holes in both parts. Secure the part with two M3x30 screws. Insert and tighten one M3x18 screw. Prusa CORE One kit assembly... -
Page 98: Step 30 Installing The Belt-Tensioner-Right
Electronics & Chamber parts package Under no circumstances remove the green anti-ejection safety pins. Wait for the prompt in the instructions. Piece of cloth or a paper towels to wipe the preservative lubricant from the linear guide. Prusa CORE One kit assembly... -
Page 99: Step 32 Attaching The Linear Rail
Insert two M3x6 screws into the fifth holes from the ends of the rail. Tighten just slightly. Insert two M3x6 screws into the first holes in the rail. Tighten just slightly. Do not remove the safety pins from the rail. Prusa CORE One kit assembly... -
Page 100: Step 34 Installing The Linear Rail: Parts Preparation
Move both linear holders approximately to the center of the Y-axis. Attach the linear rail assembly to the holders from the front side of the assembly. Secure it with three M3x8rT screws from the back side on both the left and right sides. Prusa CORE One kit assembly... -
Page 101: Step 36 Linear Rail: Removing The Safety Pins
Printed parts package M3nS nut (3x) M3x8rT screw (3x) STEP 38 Assembling the bed-stop Insert two M3nS nuts into the bed-stop from one side. Insert one M3nS nut into the bed-stop from the other side. Prusa CORE One kit assembly... -
Page 102: Step 39 Mounting The Bed-Stop
Note that the motors are marked as X and Y-axes in order to distinguish between them. We will continue to follow this marking. Pulley T16-2GT (2x) found in the Electronics package Assembly-multi-tool (1x) you already used Prusa CORE One kit assembly... -
Page 103: Step 41 Installing The X-Axis Pulley
Using the fork on the Assembly-multi-tool set a gap between the pulley and the motor. Push the pulley on the tool and firmly tighten the screw against the flat part on the shaft. Rotate the pulley and firmly tighten the second grub screw. Prusa CORE One kit assembly... -
Page 104: Step 42 Installing The Y-Axis Pulley
Y-axis motor assembly (1x) you assembled earlier XY belt (2x) found in the CORE XY parts + hinges + HB set package Nextruder holder (1x) found in the CORE XY parts + hinges + HB set package M3x35 screw (8x) Prusa CORE One kit assembly... -
Page 105: Step 44 Xy Belts Info
Insert the Y motor pulley into the motor mount, ensuring the pulley is centered within the belt loop. Fully attach the motor to the motor-mount with the motor cable facing you. Pull lightly on the belt loop to encircle the pulley. Prusa CORE One kit assembly... -
Page 106: Step 46 Securing The Y-Axis Motor
Push the belt through the part and guide it to the front of the CoreXY plate. Don't pull too long so you don't pull the whole belt out. Remember that the other end is loose. The whole process would then have to be repeated. Prusa CORE One kit assembly... -
Page 107: Step 48 Y Belt Guiding: Belt Tensioner
Take the other end of the belt and guide it around the lower pulley in the X motor mount. Push it through the motor mount to the front. Route the belt around the lower right pulley in the linear rail holder. Prusa CORE One kit assembly... -
Page 108: Step 50 Y Belt Guiding: Securing The Belt
Insert the X motor pulley into the motor mount, ensuring the pulley is centered within the belt loop. Ensure the motor cable is facing you (rear). Pull lightly on the belt loop to encircle the pulley. Prusa CORE One kit assembly... -
Page 109: Step 52 Securing The X-Axis Motor
Push the belt through the part and guide it to the front of the CoreXY plate. Don't pull too long so you don't pull the whole belt out. Remember that the other end is loose. The whole process would then have to be repeated. Prusa CORE One kit assembly... -
Page 110: Step 54 X Belt Guiding: Belt Tensioner
Take the other end of the belt and guide it around the upper pulley in the Y motor mount. Push the belt through the motor mount. Route the belt around the upper front pulley in the linear rail holder. Prusa CORE One kit assembly... -
Page 111: Step 56 - X Belt Guiding: Securing The Belt
Before proceeding, recheck the belt routing according to the illustration. STEP 58 Bowden guide: parts preparation For the following steps, please prepare: Bowden-guide (1x) found in the Printed parts package M3x10 screw (5x) M3nS nut (1x) Zip tie (2x) Prusa CORE One kit assembly... -
Page 112: Step 59 Securing The Nextruder Holder
Push the zip tie through the motor-mount-right. Route the Y motor cable through the cable channel in the motor-mount-right and over the zip tie. Secure the cable with a zip tie and trim the excess. Prusa CORE One kit assembly... -
Page 113: Step 61 Securing The X Motor Cable
STEP 62 Installing the bowden guide Insert the M3nS nut into the motor-mount-right. Attach the bowden-guide to the motor-mount-right. Note the correct orientation of the part. Fix the bowden-guide in place using the M3x10 screw. Prusa CORE One kit assembly... -
Page 114: Step 63 White Led Strip: Parts Preparation
Stick the White LED strip evenly to the strut - on the side with the rectangular cutout. After sticking, press lightly on the blank areas of the strip to ensure adhesion. Do not touch LEDs and resistors! Prusa CORE One kit assembly... -
Page 115: Step 65 Installing The White Led Assembly
Attach the LED assembly to the CoreXY plate and secure it with two M3x4rT screws. STEP 66 Door sensor & White LED strip: parts preparation For the following steps, please prepare: Door sensor (1x) found in Electronics and fasteners package M2.5x10 screw (1x) silver Zip tie (4x) Prusa CORE One kit assembly... -
Page 116: Step 67 Inserting The Zip Ties
Secure the door sensor with the M2.5x10 screw. Tighten the bolt fully and then loosen 1/4 turn. The sensor must be allowed to move. From the rear of the belt tensioner, tighten the M3x12 screw so that it touches the door sensor. Prusa CORE One kit assembly... -
Page 117: Step 69 Securing The Door Sensor Cable
Tighten all the zip ties to secure the cables. Cut off the excess zip ties. Cables must be slightly taut and straight. Excess slack or bends may cause collisions with the Y-axis and lead to damage. Prusa CORE One kit assembly... -
Page 118: Step 71 Smooth Rods: Parts Preparation
The threaded rod of the rear Z motor must pass through the bed-stop-rear part. WARNING: When handling the printer, DO NOT lift it by the CoreXY assembly. Always lift it by the base of the entire assembly. Prusa CORE One kit assembly... -
Page 119: Step 73 Securing The Smooth Rods
Firmly tighten the left M3x6 screw to secure the smooth rod. STEP 74 Aligning the linear rail Move the linear rail carriage to the center. Firmly tighten all screws in the order shown in the picture. Push the linear rail down while tightening. Prusa CORE One kit assembly... -
Page 120: Step 75 Guiding The Corexy Cables
Push the cooling fan and thermistor cables through the oval hole in the back panel. On the right back corner, locate the Y motor cable and push it through the upper oval hole in the back panel. Prusa CORE One kit assembly... -
Page 121: Step 77 Fixing The Bed-Stop
The connection order does not matter, both cables are the same. Guide the chamber thermistor cable together with the cooling fan cables. Connect it to the second slot from the left on the xBuddy extension board labeled TEMP. Prusa CORE One kit assembly... -
Page 122: Step 79 Connecting The Corexy Cables
Guide the Y motor cable through the left hole in the xBuddy box. Connect it to the second slot from the left on the xBuddy board. STEP 80 Haribo time Think it’s snack o’clock again. You deserve to eat the whole bag, but keep... Eat just the fourth row. Prusa CORE One kit assembly... -
Page 123: Step 81 Done
5. CoreXY assembly STEP 81 Done Congratulations! You have just assembled and installed the CoreXY assembly. Let's go to the next chapter. Prusa CORE One kit assembly... -
Page 124: Nextruder Assembly
6. Nextruder assembly Prusa CORE One kit assembly... -
Page 125: Step 1 Tool Necessary For This Chapter
Idler-lever-b (1x) found in the Electronics package Bearing 693 2RS (2x) found in the Electronics package Pin 2.9x8.5 (2x) found in the Electronics package M3x6 screw (1x) Tubular spacer 13.2x3.8x0.35 (1x) found in the Electronics package Prusa CORE One kit assembly... -
Page 126: Step 3 Assembling The Extruder Idler
Heatsink assembly (1x) found in the Electronics package Main-plate (1x) found in the Electronics package PG-ring (1x) found in the Electronics package PG-assembly-adapter (1x) found in the Electronics package The list continues in the next step... Prusa CORE One kit assembly... -
Page 127: Step 5 - Assembling The Extruder: Parts Preparation
Place the main-plate on the heatsink. Note the orientation of the part. Use the cutout as a guide. Before proceeding to the next step, make sure that the 5x10x0.1 spacer is placed on the extruder motor. Prusa CORE One kit assembly... -
Page 128: Step 7 Assembling The Gearbox
With the other hand, slide the PG-ring onto the PG assembly in a wobbling motion (move the PG-ring left and right repeatedly) - a quarter turn is enough. Stop when the surfaces of the gears are approximately flush with the surface of the PG ring. Prusa CORE One kit assembly... -
Page 129: Step 9 Assembling The Pg-Assembly
PG-ring's surface or at the same level as the ring. Ensure that the gap between the PG-ring and the Main-plate is minimal. If a significant gap is observed, disassemble the planetary gear assembly and reposition it. Prusa CORE One kit assembly... -
Page 130: Step 11 - Assembling The Nextruder Idler
For the following steps, please prepare: Front Case (1x) found in the Printed parts package M3x25 screw (3x) Lubricant (1x) found in the Electronics & Fasteners package Several paper towels to wipe grease from your hands. Prusa CORE One kit assembly... -
Page 131: Step 13 Lubricating The Gear
Place the front case onto the gearbox and secure it with three M3x25 screws. Do not tighten them completely at this moment. The screws on the front case will be completely tightened during the self-test in the final chapter. Prusa CORE One kit assembly... -
Page 132: Step 15 Assembling The Idler-Swivel: Parts Preparation
Place the second idler-swivel from the opposite side on the screw. From the other side, attach the M3nN nut onto the screw. Hold the nut using the universal wrench and tighten the screw. Tighten just lightly! The spacer must rotate freely. Prusa CORE One kit assembly... -
Page 133: Step 17 Assembling The Idler-Nut
Attach the Idler-swivel assembly on the screws. See the correct orientation of the Idler-nut. The side with version marking must be visible. See the picture. Tighten both screws. Stop tightening as soon as the screw tips reach the front face of the idler nut. Prusa CORE One kit assembly... -
Page 134: Step 19 Ntc Thermistor: Parts Preparation
For the following steps, please prepare: Nextruder spacer (3x) found in the Electronics & Fasteners package M3x10 screw (3x) Cardboard box (1x) used as temporary heatbed protection Hint: You can use any cardboard box from the kit package. Prusa CORE One kit assembly... -
Page 135: Step 22 Protecting The Heatbed
Place the Nextruder assembly on the spacers. Align the holes in the Nextruder with the spacers and secure it with three M3x10 screws. Do not overtighten the screws. Ensure the NTC cable is pointing to the left. Prusa CORE One kit assembly... -
Page 136: Step 24 Heatsink Fan: Parts Preparation
There is a sticker on the hotend fan, the sticker must be on the rear side of the fan - not visible. The cable must be pointing towards the lower-left corner. Prusa CORE One kit assembly... -
Page 137: Step 26 Guiding The Heatsink Fan Cables
Main cable (1x) found in the Electronics & Fasteners package Note: Cable color may vary depending on the batch. This does not affect the procedure. M3x10 screw (4x) M3x8rT screw (1x) M3nS nut (5x) The list continues in the next step... Prusa CORE One kit assembly... -
Page 138: Step 28 - Loveboard: Parts Preparation
Locate the U-shaped cable channel on the Loveboard-mount and insert an M3nS nut into the nearby hole. Use a 2.5mm Allen key to push the nut all the way in. On the opposite side of the part, insert an M3nS nut and push it into place. Prusa CORE One kit assembly... -
Page 139: Step 30 Assembling The Printhead-Cover
Align the holes with both parts and secure the board with the M3x8rT screw. Do not overtighten it, it might damage the part. Take the end of the extruder main cable without the white label. Turn the Loveboard-mount upside down and connect the Main cable to the LoveBoard. Prusa CORE One kit assembly... -
Page 140: Step 32 Guiding The Main Cable
Cover the LoveBoard with the Printhead-cover. Avoid pinching any wires in the main cable. Fix both parts together using two M3x10 screws. Check that there is no large gap or pinched textile sleeve between the parts. Prusa CORE One kit assembly... -
Page 141: Step 34 Swingarm: Parts Preparation I
The list continues in the next step... STEP 35 Swingarm: parts preparation II. For the following steps, please prepare: Bowden-bend (1x) found in the Printed parts package Main-cable-clip (1x) found in the Printed parts package Prusa CORE One kit assembly... -
Page 142: Step 36 Guiding The Main Cable
In the right corner of the printer on the Y motor assembly, locate the hole in the plastic part and align it with the main-cable-clip. Fix the main-cable-clip with the cable to the hole using the M3x10 screw. Prusa CORE One kit assembly... -
Page 143: Step 38 Attaching The Loveboard Assembly
Attach the swingarm assembly to the pair of threaded holes on the back panel near the top right corner. Secure it with two M3x8rT screws. Do not overtighten the screws, as this may strip the threads. Prusa CORE One kit assembly... -
Page 144: Step 40 Attaching The Main Cable
Push one end of the PTFE tube through the bowden-bend and keep protruding at least 1 cm (0.39 in) of the tube. Insert the PTFE tube into the fitting M5-4 on the Nextruder. Push it all the way down. Slide bowden-bend down to cover the fitting M5-4. Prusa CORE One kit assembly... -
Page 145: Step 42 Securing The Ptfe Tube
Ensure the main cable is not too tight and does not pull the Nextruder backward. If the cable is too tight, slightly loosen the screw on the main-cable-clip and pull the cable upward by a few millimeters. Then, tighten the screw and test again. Prusa CORE One kit assembly... -
Page 146: Step 44 Print Fan: Parts Preparation
Insert the print fan into the fan-shroud as shown. See the correct orientation of the parts. Secure both parts together with one M3x25 screw. Do not overtighten the screws to avoid damaging the fan housing. Prusa CORE One kit assembly... -
Page 147: Step 46 Installing The Print Fan Assembly
Secure the fan-shroud to the Nextruder holder using two M3x10 screws. STEP 47 Hotend: parts preparation For the following steps, please prepare: Thumb screw (2x) found in the Electronics package Prusa Hotend assembly (1x) found in the Electronics package Prusa CORE One kit assembly... -
Page 148: Step 48 Installing The Hotend
Connecting the heatsink cables Plug the NTC thermistor cable into the connector above the main cable on the LoveBoard. Plug the heatsink fan cable into the lower connector in the left row of the LoveBoard. Prusa CORE One kit assembly... -
Page 149: Step 50 Connecting The Hotend Cables
Plug the Nextruder motor (labeled E) to the top-facing connector. Plug the loadcell cable (lower cable) to the upper connector on the right side of the Nextruder. Plug the filament sensor (upper cable) to the lower connector. Prusa CORE One kit assembly... -
Page 150: Step 53 Loveboard Covers: Parts Preparation
Click on the picture to open it in the high-resolution preview. Guide the main-cable through the upper hole on the right side of the back panel assembly. Leave the end of the cable hanging freely for now. Prusa CORE One kit assembly... -
Page 151: Step 55 Covering The Loveboard
If the cable does not reach the connector or is too tight, go back to step Checking the movement and pull the cable slightly downward from the main- cable-clip. Secure the cables with the second zip tie from the bottom. Carefully cut the excess, avoiding cutting the cables. Prusa CORE One kit assembly... -
Page 152: Step 57 Haribo Time
6. Nextruder assembly STEP 57 Haribo time Power up and push forward! Eat the fifth row. Not full yet? STEP 58 Done Congratulations! You just successfully assembled the Nextruder. Let's move to the next chapter. Prusa CORE One kit assembly... -
Page 153: Bodywork & Electronics
7. Bodywork & Electronics Prusa CORE One kit assembly... -
Page 154: Step 1 Tools Necessary For This Chapter
Front Left Profile (1x) found in the Metal parts 1/3 package The one with the two circular openings on top. Front Right Profile (1x) found in the Metal parts 1/3 package The one with one circular opening on top. M3x4rT screw (8x) Prusa CORE One kit assembly... -
Page 155: Step 3 Installing The Front Right Profile
Align the profile so that the openings match. Be careful not to bend the door sensor lever! Secure the profile to the CoreXY assembly using two M3x4rT screw Fix the profile at the bottom using the two M3x4rT screws. Prusa CORE One kit assembly... -
Page 156: Step 5 Top Profiles: Parts Preparation
(green arrow), not on top of it. Align the holes in both parts and join both parts together with the M3x4 screw. Using the same procedure, join the other two profiles to form a corner, securing them with an M3x4 screw. Prusa CORE One kit assembly... -
Page 157: Step 7 - Assembling The Top Profiles Ii
The protruding part of the rear profile must be positioned behind the back sheet metal plate. On the sides and front, the profiles must sit on top of the tabs with threaded openings. Prusa CORE One kit assembly... -
Page 158: Step 9 Installing The Top Profiles
Once all the top profiles are properly aligned, fix them in place using the remaining 8 M3x4rT screws in the corners. Attach the back panel to the top profile with three nylon rivets. STEP 10 CoreXY fixing screws: parts preparation For the following steps, please prepare: M3x4rT screw (4x) Prusa CORE One kit assembly... -
Page 159: Step 11 Fixing The Corexy Assembly
7mm Ferromagnetic Ball (1x) found in the Electronics & Fasteners package Side Filament Sensor Lever (1x) found in the Printed parts package M3x10 Screw (1x) 10x6x2mm magnet (2x) found in the Electronics & Fasteners package Prusa CORE One kit assembly... -
Page 160: Step 13 Assembling The Side Sensor Base
Tighten the screw while ensuring the lever can move freely. If the movement is restricted, slightly loosen the screw. Do not fully tighten the screw. Otherwise, the lever will not move and the sensor will not work! Prusa CORE One kit assembly... -
Page 161: Step 15 Installing The Magnets
Side Filament Sensor Cable (1x) found in the Electronics & Fasteners package IR Filament Sensor (1x) found in the Electronics & Chamber parts package Side Filament Sensor Cover (1x) found in the Printed package M2x8 Screw (1x) M3x8 Screw (2x) M3nS nut (2x) Prusa CORE One kit assembly... -
Page 162: Step 17 Connecting The Ir Sensor
Plug the cable into the IR filament sensor. Ensure the connector is oriented correctly before plugging it in! On CORE One, the brown cable must connect to the +5V pin. The white cable connects to the GND pin. STEP 18 Installing the IR sensor First, insert the cable into the groove. -
Page 163: Step 19 Installing The Side Sensor Cover
Do not tighten the screw in the middle! Otherwise, the sensor would stop working. STEP 20 Side filament sensor: parts preparation For the following steps, please prepare: Side Filament Sensor Assembly (1x) you assembled earlier Collet (1x) found in the Electronics & Fasteners package Zip-tie (3x) Prusa CORE One kit assembly... -
Page 164: Step 21 Installing The Side Filament Sensor
Tighten the zip-tie lightly, allowing for cable adjustments if needed later. Cut off the excess zip-tie. Guide the sensor cable through the dedicated opening to the back of the printer. On the back of the printer, guide the cable into the xBuddy box. Prusa CORE One kit assembly... -
Page 165: Step 23 Connecting The Side Filament Sensor
NFCcoil (1x) found in the Electronics & Chamber parts package Adhesive film 32 x 25 mm (1x) found in the Electronics & Chamber parts package NFC coil cable (1x) found in the Electronics & Chamber parts package Prusa CORE One kit assembly... -
Page 166: Step 25 Applying The Adhesive Film
Connect the cable to the board by aligning the connectors and pressing lightly until you feel a click, ensuring a secure connection. Be careful when connecting the NFC coil cable. Misalignment or excessive pressure can cause irreversible damage. Prusa CORE One kit assembly... -
Page 167: Step 27 Connecting The Nfc Coil
Connect the NFC coil cable to the board by aligning the connectors and pressing lightly until you feel a click. STEP 28 Preparing the electronics cover Push two M3x10 screws through the El-box-cover. Prusa CORE One kit assembly... -
Page 168: Step 29 Installing The Electronics Cover
For the following steps, please prepare: Sheet metal back cover (1x) found in the Metal parts 2/3 package xBuddy cover (1x) found in the Metal parts 3/3 package M3x4rT screw (8x) Prusa CORE One kit assembly... -
Page 169: Step 31 Installing The Xbuddy Cover
Place the rear sheet metal cover into the recess. Push it toward the printer, then move it upward to engage it. There are four tabs that should engage into the printer’s chassis. Secure the rear cover in place using two M3x4rT screws from inside the printer. Prusa CORE One kit assembly... -
Page 170: Step 33 Right Side: Parts Preparation
Place the spool holder in the middle of the sheet metal. The lip should face toward the three openings on top. While keeping the holder in position, secure it using four M3x8rT screws. Prusa CORE One kit assembly... -
Page 171: Step 35 Right Handle: Parts Preparation
PTFE Tube 4 x 2.5 x 45 mm (1x) found in the CoreXY parts + Hinges set package (together with hinges parts) Nylon Rivet (11x) STEP 36 Installing the collet Insert the collet into the handle. Push it all the way in. Prusa CORE One kit assembly... -
Page 172: Step 37 Mounting The Handle
Secure the side sheet metal to the printer using the 11 Nylon rivets. Insert the short PTFE tube 4 x 2.5 x 45 into the collet. Push it all the way in. Part of the PTFE tube will remain protruding from the handle. Prusa CORE One kit assembly... -
Page 173: Step 39 Left Side: Parts Preparation
Installing the left side Align the handle with the threaded openings in the sheet metal. Attach the handle using the two M3x5rT screws. Secure the side sheet metal to the printer using 11 nylon rivets. Prusa CORE One kit assembly... -
Page 174: Step 41 Haribo Time
Well done—fuel up for the next challenge! Eat the sixth row. So close! But hands off those last gummies! STEP 42 Done Congratulations! You’ve successfully assembled the entire body. Let's move to the next chapter. Prusa CORE One kit assembly... -
Page 175: Trim, Door & Xlcd
8. Trim, Door & xLCD Prusa CORE One kit assembly... -
Page 176: Step 1 Tools Necessary For This Chapter
Top cover (1x) found in the Plexi set package Vent cover (1x) found in the Plexi set package M3nN nut (3x) Insulating insert (3x) found in the Electronics & Fasteners package M3x10rT screw (3x) Nylon rivet (4x) Prusa CORE One kit assembly... -
Page 177: Step 3 Removing The Foil
If oriented correctly, the cover will align with the recess, and the bolt heads in the corners will fit into the cutouts. If the bolt openings don't align, flip the cover. Spoiler alert: The cover isn't symmetrical! Prusa CORE One kit assembly... -
Page 178: Step 5 Assembling The Top Cover I
Tighten the screw while holding the M3nN nut, just until snug. Then, back up one turn. The screw must be tight enough just to remove the slack. It must remain loose, or the ventilation cover won’t open and close properly. Prusa CORE One kit assembly... -
Page 179: Step 7 Testing The Ventilation
Align the cover with the recess on the printer, ensuring the vent points to the front. Secure the cover to the frame using four nylon rivets in the marked openings. There are eight openings, but four rivets should be sufficient. Prusa CORE One kit assembly... -
Page 180: Step 9 Side Covers: Parts Preparation
Side Cover (2x) found in the Plexi set package Nylon Rivet (10x) STEP 10 Removing the foil Remove the protective foil from both the side covers. Remove the protective foil from the other sides of both the side covers. Prusa CORE One kit assembly... -
Page 181: Step 11 Covering The Left Side
Secure the cover to the frame using five nylon rivets in the marked openings. STEP 12 Covering the right side Align the other cover with the recess on the right side of the printer. Secure the cover to the frame using five nylon rivets in the marked openings. Prusa CORE One kit assembly... -
Page 182: Step 13 Xlcd: Parts Preparation
Remove the protective foil from the xLCD. Insert the xLCD into its back cover. Make sure the top right corner hooks up correctly into the plastic part. Align the xLCD with the protruding ledge on the bottom. Prusa CORE One kit assembly... -
Page 183: Step 15 - Assembling The Xlcd
Secure the connector in place using one 3x8sT screw, making sure it stays lined up as indicated. To prevent damaging some of the surrounding electronic components, be careful and make sure the connector doesn’t spin, while tightening it. Prusa CORE One kit assembly... -
Page 184: Step 17 Installing The Lcd Knob
Attach the knob onto the shaft, making sure the mark on the knob is facing up. STEP 18 xLCD bezel: parts preparation For the following steps, prepare: xLCD (1x) found in the Electronics package M3nS nut (2x) M3x6 screw (2x) Bezel (1x) found in the Metal parts 2/3 package Prusa CORE One kit assembly... -
Page 185: Step 19 Mounting The Xlcd I
If assembled correctly, the LCD should be pointing up..While the bent lip on the Bezel is on top. Push the screws all the way into the narrow part of the keyhole on both sides. Then, tighten the screws. Prusa CORE One kit assembly... -
Page 186: Step 21 Installing The Xlcd Assembly
Hook the tiny tab on the left side of the bezel behind the left vertical profile of the printer. Gently lift the bottom part of the xLCD assembly to allow for smoother tab engagement and extra wiggle room. Hook the tab on the right side into the printer’s right profile. Prusa CORE One kit assembly... -
Page 187: Step 23 Door Seal: Parts Preparation
Start applying the seal along the top edge of the printer’s frame. Begin offset from the corner by a distance equal to the seal thickness. Apply the seal along the top edge, leaving the end offset from the corner, just like on the other side. Prusa CORE One kit assembly... -
Page 188: Step 25 Attaching The Side Seals
STEP 26 Magnet holders: parts preparation For the following steps, prepare: M3x5rT screw (2x) M3nS nut (2x) 20x6x2 Magnet (2x) found in the Electronics & Fasteners package Magnet Holder (2x) found in the Printed parts package Prusa CORE One kit assembly... -
Page 189: Step 27 Assembling The Magnet Holders
Ensure the protruding rectangular pocket fits into the cutout. Secure the assembly in place using the M3x5rT screw. Using the same technique, install the other magnet holder into the top opening on the right side. Prusa CORE One kit assembly... -
Page 190: Step 29 Hinges: Parts Preparation
The protruding part should pass through to the front. Fix the door-hinge-in in place using the M3x5rT screw. Using the same technique, install the other door-hinge-in into the opening on top. Prusa CORE One kit assembly... -
Page 191: Step 31 Installing The Door-Hinge-Out I
Look into the grooves on the door-hinge-out parts and verify that the pins are fully inserted. No part of the pin should be visible above the bottom surface in the groove. Open up both the hinges. Prusa CORE One kit assembly... -
Page 192: Step 33 Door Panel: Parts Preparation
Peel off the film covering the entire door; it’s lightly transparent. You can remove the center protective film (white) now or after mounting the panel to protect the surface during handling. This protective film does not interfere with the installation of the hinges or handle. Prusa CORE One kit assembly... -
Page 193: Step 35 Installing The Door Panel
The part with the adhesive strip will go onto the back of the door. But do not attach the handle yet! Wait for the upcoming step! We have to align the handle first! Prusa CORE One kit assembly... -
Page 194: Step 37 Securing The Door Handle
Push the door and handle together firmly in the adhesive strip areas to ensure a secure attachment. STEP 38 Haribo time Hard work deserves sweet results! Eat the seventh row. But don’t eat the rest yet. Prusa CORE One kit assembly... -
Page 195: Step 39 Done
8. Trim, Door & xLCD STEP 39 Done Congratulations! You've successfully assembled the Door and xLCD. Let's move to the final chapter. Prusa CORE One kit assembly... -
Page 196: Calibration & First Run
9. Calibration & First run Prusa CORE One kit assembly... -
Page 197: Step 1 Belt Tensioning
Keep the print sheet clean for optimum performance. #1 cause of prints detaching from the print surface is a greasy print sheet. IPA (Isopropyl alcohol) to degrease it if you have touched its surface before. Prusa CORE One kit assembly... -
Page 198: Step 3 Turning It On
After selecting your language, the printer will display the welcome screen. Hit OK to continue through the setup process. The next screen will prompt you to select your printer model COREONE. Hit Done to continue. Prusa CORE One kit assembly... -
Page 199: Step 5 Setting Up The Printer: Network Setup
During the self-test, keep the door closed until you are prompted. Opening the door will interrupt the process. There are HOT and moving parts inside during the self-test. The printer will begin by testing all the fans. Be aware—it can get quite noisy for a while! Prusa CORE One kit assembly... -
Page 200: Step 7 Wizard: Door Sensor Calibration
Tap the nozzle from below. In case the Loadcell does not detect the touch, you will be prompted to repeat the step. Otherwise, you will see Loadcell test passed OK when it succeeds. To allow the printer to continue with the Wizard, close the door. Prusa CORE One kit assembly... -
Page 201: Step 9 Wizard: Gearbox Alignment
Place a spool of filament onto the spool holder on the right side of the printer. When prompted, begin inserting the filament into the PTFE tube located beneath the right handle. Remove the filament after the calibration finishes. Prusa CORE One kit assembly... -
Page 202: Step 11 - Wizard Complete
9. Calibration & First run STEP 11 Wizard complete Congratulations! The Wizard is complete. Now it’s time to test some prints. STEP 12 Haribo time Victory tastes like gummy bears! Enjoy the rest. You’ve earned this. Prusa CORE One kit assembly... -
Page 203: Step 14 Firmware Update
Visit the help.prusa3d.com page. Navigate to the Prusa CORE One page. Save the firmware file (.bbf) onto the bundled USB drive. Pro tip: To access Prusa CORE One homepage you can use the URL: prusa.io/core-one Prusa CORE One kit assembly... -
Page 204: Step 15 Prusa Knowledge Base
Looking for inspiration on new projects? Check our blog for weekly updates. If you need help with the build, check out our forum with a great community :-) All Prusa services share one user account. Prusa CORE One kit assembly... -
Page 205: Manual Changelog
Manual changelog Prusa CORE One kit assembly... -
Page 206: Step 1 Version History
Manual changelog STEP 1 Version history Versions of the Prusa CORE One kit manual: 03/2025 - Initial version 1.00... - Page 207 Notes:...
- Page 209 Notes:...
- Page 211 Notes:...
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