Desk clamp v2

Why

The v1 clamp held the desk light but flexed enough that the bulb cone wandered across the page. Annoying for reading, fatal for shooting tabletop stills.

v2 is the same idea — a single-piece print that grabs the desk edge — but with a thicker rib through the long axis and a properly chamfered M4 pocket so the bolt no longer pulls the wall thin.

Process

1. Pulled the v1 model, marked the failure modes in red.
2. Sketched the rib as a flat sweep, then chamfered the pocket 0.4 mm undersize so the heat-set insert pulls true.
3. Printed three test sleds at 0.3 mm to dial the fit before committing the full piece.
4. PETG, 0.2 mm, 30% gyroid, four perimeters. ~3h 40m per piece.

Slicer settings (Bambu Studio)

filament         = PETG HF
layer_height     = 0.20
walls            = 4
infill_pattern   = gyroid
infill_density   = 30
support          = tree (auto, ≥45°)
brim             = 4 mm

What I’d change

• The bolt head still rotates a few degrees in the pocket on overtorque. A small flat against the back wall would fix it; v3.
• PETG is fine but PLA-CF would stiffen the rib without adding mass.