# Optical Center Punch

**Category:** Hardware & Electronics · **Status:** Done

DIY $10 punch vs $30-60 commercial. 3D printed + lens.

**Stack / Tools:** 3D Printed, Precision, Optical, Tool

**Build path:**
- V1 — Research phase.
- V2 — Built with steel tip.

**Location:** `~/Desktop/optical-punch-body.stl`

DIY optical center punch: 3D-printed body + lens + steel tip for marking drill centers. ~$10 vs $30–60 commercial.