Desk-Edge Cable Clamp

A clip-on desk-edge cable clamp that routes one cable through a C-shaped hook on the side. No metal parts, no tools — the whole thing is three printed pieces. Prints: - `cable_holder_body.stl` — the C-frame with the threaded hole and side cable hook (the blue body in the photos). - `cable_holder_screw.stl` — knurled thumbscrew with a fully printable trapezoidal thread (the red knob). - `cable_holder_pad.stl` — small swivel cap that snaps onto the screw tip so it doesn't bite the table underside. Fits desk tops up to about 55 mm thick. Snap a cable into the C-hook from the side; the inner curl keeps it from popping back out. Print the body on its side (bore horizontal), the screw knob-down, the pad flat. PLA or PETG, 0.2 mm layers, 3 walls, no supports. Screw the thumbscrew up into the body until it clamps firmly against the underside of the desk.