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Summary of Contents for Bondtech Prusa i3
- Page 1 Bondtech for Prusa i3 Assembly and installation manual This work is licensed under a GNU General Public License v3.0...
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Page 2: Table Of Contents
A lot of work has been spent in this project and we have tried to listen to all the inputs in order to find a solution that can be fitted to a Prusa I3 MK2, MK2S, MK2.5 and MK3. -
Page 3: Compatibility
Prusa i3 MK2s Prusa i3 MK2,5 Prusa i3 MK3 What’s in the box? All customers 1x Bondtech extruder for Prusa i3. 1x PTFE tube (80mm). 1x SLS printed Extruder front. 1x SLS printed Extruder rear. 1x Bag with screws and bolts. -
Page 4: Mechanical Installation
To install the upgrade you will need. - M1.5- Hex Wrench - M2.5- Hex Wrench - Hobby knife with sharp tip or similar. Recommended: Download and print out Bondtech’s PTFE fixture for precise measurement of the tube length. STL-file available at https://github.com/BondtechAB/Bondtech_Prusa_i3/tree/master/CAD-Files Preparation Remove your old extruder. - Page 5 ● Preparing your motor. ● Insert the M2x3 setscrew and slide the motor gear onto the shaft as oriented in the picture. ● Leave a 1-1,5 mm gap between the gear and the motor and tighten it using your 1,5mm Allen key.
- Page 6 ● Insert three M3 screws and loosely tighten them using a 2.5mm Allen key. • M3x8 • M3x12 • M3x25 ● Insert a ball bearing. Ensure it is fully pressed down into the slot. ● Insert the shaft with the white plastic gear into the bearing.
- Page 7 ● Insert a square nut into the pocket. ● Prepare the extruder rear. Insert a ball bearing and press it down using a primary drive gear. • If you are using the bear X- carriage remove hex cover plug by pushing it from the rear side. This hole is for a M3 nut.
- Page 8 ● Insert the M3x2 setscrew and tighten it with your 1,5 Allen key. Important: Ensure the groves align with the filament path! Recommended: Use Loctite to secure the screw. Important: If the setscrew is not properly aligned with the flat surface it will stick out and start grinding on the secondary drive gear when you start printing!
- Page 9 • Slide the shaft with the bearings through the secondary drive gear. • Align the gear with the hinge as shown in the photo and press the shaft down until you hear the click. • Carefully press the shaft in place using your 2.5mm Allen key.
- Page 10 HotEnd. ● Cut the tube 6.3 mm from the top of the HotEnd. Save the remaining piece for the sensor cover. ● Recommended: Use Bondtech’s cutting fixture for precise measurement. STL-file is available at: https://github.com/BondtechAB/B ondtech_Prusa_i3/tree/master/C AD-Files...
- Page 11 ● Use a knife or razor to chamfer the inside of the tube for better filament guidance. Important: Do not let any left over from the tube fall into the HotEnd we recommend you remove the tube before chamfer the inside! ●...
- Page 12 • Attach the front onto the rear part. Push the HotEnd upwards to align the neck correctly. • Ensure everything is aligned and carefully clamp the parts together. Important: The parts should fit together easy. Do not use any excessive force! •...
- Page 13 ● Install your 40x40 fan using four M3x12 screws. ● Press down the hex nuts into the pockets of the mounting bracket. ● Install the mounting bracket and fan shroud using two M3x10 screw. • M3x10 ● Place two hex nuts into the slots on the mounting bracket and slide your 5015-blower fan down the fan shroud and mount it using...
- Page 14 ● The position of the P.I.N.D.A probe depends on your version of the printer. MK2/s users place the probe to right (Closer to the X- axis) MK2.5 and MK3 users place the probe to the left (furthest away from the X-axis). ●...
- Page 15 ● Place the sensor cover on top and fasten it using two M3x8 screws. Installation manual extruder upgrade for Bondtech_Prusa_i3 V1.1...
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Page 16: Software Configuration
Good luck with your Bondtech feeder! If you have any questions please first read the FAQ (http://www.bondtech.se/en/faq/). If the question still hasn’t been answered feel free to contact us by email or our online chat. Repslagarvägen 3 J 33153 Värnamo...
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