Klipper Clipper

The Klipper Clipper is a completely unnecessary invention.   It is a Klipper-powered rotary cutting wheel for gift wrap, craft paper, etc.  

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This design is untested and was created as a bit of joke.   It can likely use improvements.   Please feel free to make updates, additions, revisions, etc.    See below for attribution requirements.

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Required Materials

• Four NEMA 17 stepper motors (at least 38mm deep).
• Klipper Control Board of your choice (needs to support two X and two Y steppers)
• Two M5-0.8 x 80mm socket head cap screws
• Two M5-0.8 hex nuts
• Ten M2.5-0.4 x 4mm grub screws
• Two 20mm x 1000mm linear rods
• Two 20mm x 8mm x 1000mm flat aluminum bars
• Two 10mm OD x 40mm compression springs
• Four GT2 20-tooth pulley with 5mm ID
• 2.5m+ GT2-6mm Belt
• Two GT-2 Belt Clamps
• 28mm Rotary Cutting Blade

Printing Notes

Most pieces will require supports due to complex geometries.

PLA should be sufficient for this, but other materials like PC or PETG should be acceptable too.   Nylon (PA) can be used for the carriage but should be avoided for the other pieces due to dimensional creep.

Assembly Instructions

1. Plug the stepper wires into the NEMA 17 stepper motors
2. Insert the upper stepper motors into the left and right end assemblies, aligning them with the recesses for the plug.  Secure them tightly.
3. Insert the lower stepper motors into the left and right end assemblies, aligning them with recesses for the plug.   Attach a GT2 pulley to each motor and secure them with the included grub screws.   Secure the stepper motors tightly.  
4. Attach the drive assembly to the upper stepper motor of each end assembly.   Secure each of them with a grub screw.
5. Put a bit of CA glue on the end of the compression springs and insert one into each drive assembly
6. Put a bit of CA glue on the other end of the compression springs.   Align the cone assembly with the drive assembly, ensure the cone can slide on the drive assembly.   If necessary, lubricate the slides with PTFE lubricant.
7. Insert the rods and flat bars in the left assembly and secure each with a grub screw.
8. Turn the assembly upside down.   
9. Carefully place the cutting blade on the arbor and drop the arbor into the carriage.
10. Slide the carriage onto the aluminum linear rods.   The blade should be against the one aluminum bar.   
11. Insert the rods and flat bars into the right assembly.   Secure each with a grub screw.
12. Turn the assembly right side up.
13. Ensure the frame is square and that the carriage moves smoothly.   Tighten each of the grub screws.
14. Insert the M5 x 80mm screw into each assembly.   As you slide in the screw, place the remaining GT2 pulley onto the screw as it passes between the two rods.    The teeth of the pulley should be towards the front side of the unit.    Place an M5 nut in the rear captive recess and finish tightening the screw.
15. Route the belt through the top side of one end of the carriage.  The teeth should be pointing down.   Loop through the end of the carriage and pull approximately 20mm of belt through.   Utilize one of the clamps to attach the two sides together.   
16. Route the belt over the top idler pulley.
17. Feed the belt down to the lower stepper, around the lower pulley.  
18. Feed the belt across to the other carriage, doing the same steps in reverse.  Before clamping the other end, ensure the belt is nice and snug.
19. Plug the stepper motors into your control board and configure your printer.cfg as desired.

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Want to alter/improve or reuse this design?   Check out the included STEP and F3D files.  

NOTE: If you post remixes/additions online --- Printables, Thingiverse, Cults, etc. -- you must include attribution and link back to this original design. Do not claim the original design as your own.