T-Handle Nipple Wrench for Squorx and Polyax Double Square (or other 3.25mm square)

Wheel lacing tool

Additional components required

• 4 × M3 × 6 mm grub screws
• 4 × M3 thread inserts
• 1 × aluminum tube Ø8 × 100 mm (inner Ø6 mm; wall thickness 1 mm)
• 2k epoxy adhesive (or any high-strength equivalent)

Required tools

• saw
• file
• T20 Torx bit
• soldering iron

Instructions

1. Print Components
   Print the handle_d8 and the required bit(s).
2. Clean printed parts
   If stringing occurs inside the squarx_bit, insert and remove a T20 Torx bit or a Squarx nipple to clear any excess material.
3. Bond the bits to the tube
   Apply epoxy adhesive to the printed bits and tube. Insert the bit tube.
   (allow sufficient curing time as specified by the adhesive manufacturer)
4. Insert thread inserts
   Use a hot soldering iron to press the M3 threaded inserts into the corresponding holes in the handle_d8.
5. Final assembly
   Insert the tube into the handle_d8.
   Secure it in place using the four M3 grub screws.
   The tool is now ready for use.

I recommend using only filaments with higher strength, such as PC or specialized PLA (e.g. Spectrum PLA Pro). Standard PLA and PETG break easily, especially with tight-fitting nipples or spoke tensions above 1000 N. I haven’t tested ABS, ASA, or other materials.

Print settings: bits

• Nozzle: 0.25 mm
• Layer height: 0.05 mm or 0.1 mm
• Perimeters: 4
• Infill: 60% (Grid or Gyroid)

Print settings: handle_d8

• Nozzle: 0.4 mm
• Layer height: 0.15 mm or 0.2 mm
• Perimeters: 3
• Infill: 15% (Grid or Gyroid)
• Supports: Yes, only for the holes