Cable C-Clamps for Wall Chases

cmykraftshop

Practical 3D models designed to print well. Built with real printers, real tolerances, and real use in mind.
 

Small clips for fixing cables inside the chases you cut into brick or concrete
walls during renovations.

The teeth bite into the wall crevice and the C grips the cable — when you
plaster over, the cable can't shift, so you don't end up with deformations
or kinks under the finish.

9 cable sizes, one .3mf, one plate per size:

4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 mm

Plates are named by cable Ø. Open in Bambu Studio, slice whichever you need.

Default body: 15 mm long, 1.2 mm wall.

Sizing

Match the clip to the cable's outer jacket diameter. Snug push-fit — should
hold the cable without squeezing the insulation.

Rough guide for EU mains (NYM-J):

- 4–5 mm → low-voltage, doorbell, Cat6, speaker, thermostat
- 6–7 mm → 3×1.5 mm²
- 8–9 mm → 3×2.5 mm²
- 10–12 mm → heavier feeders, multi-core, conduit
 

Print

PETG handles plaster moisture better; PLA is fine in dry chases.

0.2 mm layer · 3 walls · 25–30% infill · no supports.
 

Install

Cut chase → lay cable → push clip on → press into chase until the teeth bite
→ plaster over. Done.
 

Parametric

Cable Ø, length, and wall thickness are all adjustable in Onshape. Need a
size that isn't in the file? Drop a comment and I'll add it.

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Need help?
If something doesn't print as expected, drop a comment with your printer, material, layer height, and which part gave you trouble. I'll help when I can.

Sharing & remixes: Makes and remixes are welcome! Please credit @cmykraftshop and link back.

Thanks for supporting independent designers. Happy printing 🙂