Ski Rack Mount Block

Create a precise 3D CAD model optimized for FDM 3D printing. The part is a ski rack mount with exact outer dimensions of 40.5 mm × 35.2 mm × 29 mm. Let X = 40.5 mm (width), Y = 35.2 mm (depth), Z = 29 mm (height). Place a 6.5 mm cylindrical through‑hole running along the Y‑axis from the front face to the back face, centered at X = 12 mm and Z = 15 mm. Place three 8.2 mm cylindrical through‑holes running along the Z‑axis from the top face to the bottom face at: – X = 28 mm, Y = 7.4 mm – X = 28 mm, Y = 17.6 mm – X = 28 mm, Y = 27.8 mm At each of these three positions, add a concentric blind cylindrical counterbore 18.5 mm in diameter along the Z‑axis, starting at the top face and extending 12 mm downward. Make the part fully solid with no internal cavities. Apply 2 mm fillets to all external edges except the bottom edges. Apply 1 mm fillets to all bottom external edges to maintain a more square appearance. Ensure the model is manifold, printable without supports (no overhangs greater than 45°), and suitable for typical FDM tolerances (0.25–0.3 mm clearance on mating features).

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.