Tolerance Test Coupon - Printer Fit Calibration (STL + STEP)

Print once to learn the exact hole and peg clearance your 3D printer needs for snug, sliding and loose fits. Designed by a mechanical engineer (Autodesk Authorized Partner) as the first project in a CAD and 3D printing course. **Includes:** STL (print-ready) and STEP (editable in any CAD). **Print settings:** PLA or PETG, 0.2 mm layers, 3 walls, 20% infill, no supports. Want more? My 15-project Engineering Kit (gears, gearbox, hinge, enclosure, brackets, bearing housing with full drawings) is i…

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