Igračka za bebu 3 – 3D štampano

(Updated 30 May 2023 with more thread clearance and separated STL files for Cura users.)Ever since I became a father, I wanted to make this nut and bolt toy for my child that encourages hand-eye coordination. I didn’t have a 3D printer at the time. Before I knew it, my kid was old enough to build our Prusa MK3S printer himself with a bit of supervision and help from me. So now I finally got this toy printed. Too late for my kid… although it turns out that he thinks it’s a pretty nice fidget toy. There’s something satisfying about spinning the nuts on the bolt.My objectives for this were:Comply with Consumer Product Safety Commission regulation CFR 1501.4 and associated guidanceLarge rounded threads for good tactile feelMinimal sharp edgesProve out my novel idea for generating screw threa