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Summary of Contents for LittleMachineShop.com HiTorque 5100
- Page 1 HiTorque™ 7x16 Mini Lathe Users Guide Model 5100 • Model 7350 Deluxe • Model 7450 Deluxe, Mirror Display from LittleMachineShop.com ®...
- Page 2 © Copyright 2023 LittleMachineShop.com ® All rights reserved. Written by Chris Wood of LittleMachineShop.com ® Version 1, April 2023 LittleMachineShop.com ® https://www.littlemachineshop.com 396 W. Washington Blvd. #500, Pasadena, CA 91103 (800) 981-9663 Updated 4/25/2023 © 2023 LittleMachineShop.com Page 2 of 61...
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Page 3: Table Of Contents
Steady Rest and Follower Rest ..48 Compound Rest Gibs ..... 25 Parts Diagrams ....... 49 Apron Position ......26 Parts List ........54 Tailstock Position ......26 Wiring Diagrams ......60 Half Nuts ........27 Updated 4/25/2023 © 2023 LittleMachineShop.com Page 3 of 61... -
Page 4: Introduction
Introduction This user’s guide covers the care and operation of the LittleMachineShop.com HiTorque 7x16 Mini Lathe. Be sure to read and understand the safety guidelines presented in this book before using your HiTorque Mini Lathe. The HiTorque 7x16 Mini Lathe is available in three models: •... -
Page 5: Safety Considerations
Learn, don’t experiment. Study, understand, and do things where you have a clear expectation of the outcome. Don’t “see what will happen.” • You are responsible for your own actions. LittleMachineShop.com cannot be held responsible for your actions when you use the machine. Lathe Safety •... -
Page 6: Machine Safety
Clamp work securely. Cutting forces are significant and can turn unsecured workpieces into projectiles. • Be aware that chips and dust from some materials (magnesium, for example) are flammable. Understand the materials you are using. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 6 of 61... -
Page 7: Features
16. Cross slide feed handle 7. Compound rest 17. Power feed lever 8. Compound rest feed handle 18. Threading dial 9. Tailstock quill 19. Bed ways 10. Tailstock quill locking lever 20. Lead screw Updated 4/25/2023 © 2023 LittleMachineShop.com Page 7 of 61... -
Page 8: Front View 7350
21. Threading dial 6. Tool post 14. Tailstock quill hand wheel 22. Bed ways 7. Compound rest 15. Change gear cover 23. Lead screw 8. Digital position readout 16. Carriage hand wheel Updated 4/25/2023 © 2023 LittleMachineShop.com Page 8 of 61... -
Page 9: Front View 7450
6. Cross slide 14. Digital position readout 22. DRO Reader 7. Tool post 15. Tailstock quill hand wheel 23. Bed ways 8. Compound rest 16. Change gear cover 24. Lead screw Updated 4/25/2023 © 2023 LittleMachineShop.com Page 9 of 61... -
Page 10: Rear View
1 pc 250-001 Turning and facing • 1 pc 250-002 Turning and boring • 1 pc 250-004 Boring • 1 pc 250-007T Cut-off horizontal • 1 pc 250-010 Knurling and turning Updated 4/25/2023 © 2023 LittleMachineShop.com Page 10 of 61... -
Page 11: Cleaning
If you want your lathe to be portable, simply install these spreader bars and feet. You can also bolt your lathe to your workbench. The following diagram shows the holes required. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 11 of 61... -
Page 12: Lathe Controls
Turn the power off when you are not using the lathe. Forward/Reverse Switch The forward/reverse switch switches the polarity of the speed control circuit board output power between the speed control circuit board and the motor. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 12 of 61... - Page 13 The green power switch enables input power to the speed control circuit board. The red E-stop switch disconnects the power. Turn the power off when you are not using the lathe. Speed Control Knob The speed control knob adjusts the spindle speed. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 13 of 61...
- Page 14 1. Turn the speed control to the minimum speed position. 2. Move the forward/reverse switch to the off position. 3. If you want to power down the lathe, press the red switch to turn off the power. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 14 of 61...
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Page 15: Carriage And Cross Feed Controls
Updated 4/25/2023 © 2023 LittleMachineShop.com Page 15 of 61... - Page 16 The model 7350 has a digital position readout on the cross slide (see next section). The model 7450 has a 40 division graduated dial on the cross slide as well as a factory installed DRO scale which sends data via Bluetooth to a tablet. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 16 of 61...
- Page 17 The HiTorque 7×16 Deluxe Mini Lathes 7350 and 7450 have digital readouts as follows: • 7350 - Tailstock, compound rest, cross slide • 7450 - Tailstock, compound rest (the carriage and cross slide use DRO via Bluetooth to tablet) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 17 of 61...
- Page 18 To replace the battery: Each DRO uses a single CR2032 lithium battery (LittleMachineShop.com part number 4292). 1. On the bottom of the display unit, squeeze together the two tabs and then pull out the battery drawer.
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Page 19: Tailstock Controls
Turn the lever clockwise to lock the tailstock quill, and counterclockwise to unlock the tailstock quill. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 19 of 61... -
Page 20: Bluetooth Dro (Model 7450 Only)
4. Here is where you tell the app about your machine. Verify the following settings. • Machine type: Lathe • Under X Axis ° Axis CPI: 5080 ° Invert Readout: check • Under Y Axis ° Enable Y Axis: remove check Updated 4/25/2023 © 2023 LittleMachineShop.com Page 20 of 61... -
Page 21: Using The App
Sets the workspace origin to the current position of the machine Selects Absolute coordinates or Incremental coordinates for all axes Sets tool offsets For the X-axis, switches between measuring radius or diameter Updated 4/25/2023 © 2023 LittleMachineShop.com Page 21 of 61... -
Page 22: Axis Detail Settings
Set Tool Offset. While a tool offset is in effect, the position readouts are shown in red to alert you to this fact. To clear the current tool offset, press and hold the Tool Offset button. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 22 of 61... -
Page 23: Adjustments
There are several fasteners in the carriage retainers. The socket head cap screws adjust the position of the retainers. The set screws and lock nuts lock the adjustments in place. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 23 of 61... -
Page 24: Cross Slide Gibs
5. While holding the setscrews from turning, tighten the lock nuts. 6. Test by turning the handle. Loosen or tighten all the setscrews the same amount until the cross slide moves freely, but without play in the dovetail. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 24 of 61... -
Page 25: Cross Slide Nut
5. While holding the setscrews from turning, tighten the lock nuts. 6. Test by turning the handle. Loosen or tighten all the setscrews the same amount until the compound rest moves freely, but without play in the dovetail. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 25 of 61... -
Page 26: Apron Position
12. When the tailstock is in the correct position, tighten the tailstock adjustment setscrews. 13. Gently remove the tailstock from the lathe and tighten the tailstock adjustment cap screw. 14. Replace the tailstock on the ways and check the adjustment. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 26 of 61... -
Page 27: Half Nuts
5. Engage the half nuts on the lead screw. 6. Tighten the bracket mounting socket head cap screws. 7. Tighten the locking nut on the change gear adjuster. 8. Replace the change gear cover. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 27 of 61... -
Page 28: Drive Belt
Use a 1" paintbrush to remove swarf from the ways as you work. • Clean the lead screw before each use. • Clean swarf from the lathe, from top down after each use. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 28 of 61... -
Page 29: Lubrication
Where oil is required, we recommend Mobil Vactra Oil No. 2, an oil especially designed for machine tool way lubrication and bearing lubrication. Chris’ Tip: Mobil Vactra Oil No. 2 is available from LittleMachineShop.com (part number 4120). If you prefer to purchase locally, get Mobil 1 synthetic motor oil, any viscosity, available at most auto parts stores. -
Page 30: Chuck
5. Turn the chuck key to close the chuck about ¼ turn to engage jaw 1. 6. Slide jaw 2 into the next slot counterclockwise from jaw 1 when you are looking toward the headstock. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 30 of 61... -
Page 31: Mounting Work In A 3-Jaw Chuck
There is also a cutting edge on the side of the tool. Between these cutting edges is a rounded section of cutting edge called the nose. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 31 of 61... - Page 32 Front relief provides clearance for the front cutting edge. Without front relief, the front of the tool bit would hit the workpiece and not allow the cutting edge to penetrate the workpiece. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 32 of 61...
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Page 33: Grinding Tool Bits
Create a nose radius that is appropriate for the tool bit you are creating. Adjusting Tool Bit Height The cutting edge of the tool bit should almost always be set to the center height of the lathe spindle. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 33 of 61... -
Page 34: Turning
3. Move the carriage so that the tool bit is near the right end of the workpiece. 4. Turn the lathe on. Adjust the speed to an appropriate speed for the material and diameter you are working on. The LittleMachineShop.com website has a calculator to help you determine appropriate cutting speeds at https://littlemachineshop.com/speeds. -
Page 35: Turning With Power Feed
4. Move the power feed forward/reverse lever to the forward position. 5. Turn the lathe on. Adjust the speed to an appropriate speed for the material and diameter you are working on. The LittleMachineShop.com website has a calculator to help you determine appropriate cutting speeds at https://littlemachineshop.com/speeds. -
Page 36: Facing
6. Turn the lathe on. Adjust the speed to an appropriate speed for the material and diameter you are working on. The LittleMachineShop.com website has a calculator to help you determine appropriate cutting speeds at https://littlemachineshop.com/speeds. -
Page 37: Threading
When you received your lathe it had a 20 tooth metal gear in this position. D Position D is the end of the lead screw. When you received your lathe it had an 80 tooth plastic gear in this position. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 37 of 61... - Page 38 Any gear Any gear Any gear Any gear Any gear Any gear Any gear Any gear Any gear Any gear Any gear 11.5 Any gear Any gear Any gear Any gear Updated 4/25/2023 © 2023 LittleMachineShop.com Page 38 of 61...
- Page 39 0.45 0.75 1.25 The LittleMachineShop.com website has a change gear calculator to help you select the correct gears at https://littlemachineshop.com/ChangeGearCalc. For normal turning, use the following gears. The change gears are commonly tight on the shaft when new. You might need to use a screwdriver behind them to pry them off.
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Page 40: Threading Dial
The gear on the bottom of the threading dial’s shaft engages the lead screw. The dial turns when the half nuts are not engaged with the lead screw. When the half nuts are engaged, the carriage moves and the threading dial stops turning. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 40 of 61... - Page 41 1, 3, 5, 7 1, 5 1, 3, 5, 7 1, 5 1, 3, 5, 7 1, 5 1, 5 1, 3, 5, 7 1, 3, 5, 7 1, 5 1, 3, 5, 7 Updated 4/25/2023 © 2023 LittleMachineShop.com Page 41 of 61...
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Page 42: Tool Bit
This helps prevent chatter that might result from cutting the entire V form of the thread at once. Chris’ Tip: Use an accurate protractor when setting the compound rest. The protractor on the lathe is not accurate enough. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 42 of 61... -
Page 43: Setting The Cutting Tool
3. Advance the compound rest to move the tool bit into the work. For the first pass, this should be only 0.001". For additional passes, it should be 0.005 to 0.010". 4. Start the lathe. Run it at the lowest speed that develops sufficient torque to make the cut. Updated 4/25/2023 © 2023 LittleMachineShop.com Page 43 of 61... -
Page 44: Common Accessories
You will soon find that the purchase of a lathe is just an initial step. There are many tools and accessories that you will need to get full use from your lathe. LittleMachineShop.com carries a full selection of accessories. Following are some common accessories used with the mini lathe, a small sampling of the complete LittleMachineShop.com line. -
Page 45: Quick Change Tool Post
And they are indexable, meaning that you can remove a tool, and when you replace it, it returns to the same position, with no adjustment necessary. LittleMachineShop.com part number 3112. This is a very high quality quick-change tool post for the HiTorque Mini Lathe. -
Page 46: 4-Jaw Chuck
It can hold larger work than the same size 3-jaw chuck. You can offset work in a 4-jaw chuck by clamping it off center. LittleMachineShop.com part number 1588. 4" 4-jaw chuck. Each jaw is independently adjustable and reversible. This set includes a chuck key and reversible jaws. The through bore of this chuck is 0.98". The chuck can hold work up to 100 mm (3.94") in diameter. -
Page 47: Centers And Dogs
A dead center goes in the spindle and supports work being turned between two centers. A lathe dog is used to drive work being turned between centers. The live center is LittleMachineShop.com part number 1189. It has a 2 Morse taper shank. This center fits the tailstock of the mini lathe. -
Page 48: Steady Rest And Follower Rest
The steady rest is LittleMachineShop.com part number 1197, which can support work up to 1" in diameter. LittleMachineShop.com part number 4673 has a capacity of 2". The follower rest is LittleMachineShop.com part number 1198. -
Page 49: Parts Diagrams
Parts Diagrams Model 5100 Updated 4/25/2023 © 2023 LittleMachineShop.com Page 49 of 61... - Page 50 Model 7350 (1 of 2) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 50 of 61...
- Page 51 Model 7350 (2 of 2) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 51 of 61...
- Page 52 Model 7450 (1 of 2) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 52 of 61...
- Page 53 Model 7450 (2 of 2) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 53 of 61...
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Page 54: Parts List
Retainer, tailstock Cross slide screw (5100) Spring 5x10 mm (5100) Quill (5100) Cross slide screw (7350) Pin 2.5x5 (7350) Quill (7350) Cross slide gib Bushing, cam lock Handle, quill clamp (5100) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 54 of 61... - Page 55 Adjustment plate (7350) Set Screw M5x20 Shaft, cam lock Cap Screw M4x6 (7350) Nut M5 Shaft, B & C gears Cap screw M8x25 Bushing and key Bed way Bushing and key Updated 4/25/2023 © 2023 LittleMachineShop.com Page 55 of 61...
- Page 56 Nut, cross slide Washer M6 Foot, Cam Lock Positioning scale set Bushing Compress spring Scale ring Bushing, Tailstock Crank handle Gear 80T Tailstock feed screw Swivel disk Inner hex. screw M5x8 Support flange Updated 4/25/2023 © 2023 LittleMachineShop.com Page 56 of 61...
- Page 57 Adjustment plate Knob block QCTP Body Washer M8 Solenoid switch Flat washer 6 Nut M8 Stop and start button Signage rivets Shaft, B & C Screw ST2.9x9.5 Threading dial housing Washer M6 Updated 4/25/2023 © 2023 LittleMachineShop.com Page 57 of 61...
- Page 58 Foot, Cam Lock Knob cover Cross inner screw M3x8 Compress spring Knob block QCTP Body Bushing, Tailstock Solenoid switch Flat washer 6 Tailstock feed screw Stop and start button Signage rivets Updated 4/25/2023 © 2023 LittleMachineShop.com Page 58 of 61...
- Page 59 Protect plate Y-axis Magnet ruler assembly Cross head screw M3x14 Handle seat Cross head screw M3x6 Rubber Pad Handle Reader USB Interface plug Protect sleeve Nut M3 Bracket Double head bolt M3x30 Updated 4/25/2023 © 2023 LittleMachineShop.com Page 59 of 61...
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Page 60: Wiring Diagrams
Wiring Diagrams Models 5100/7350 (SC2) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 60 of 61... - Page 61 Model 7450 (SC20) Updated 4/25/2023 © 2023 LittleMachineShop.com Page 61 of 61...
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