A Safer Object Permanence Box 3D Printer Model Free Download

File formats: stl

Download type: zip

Size:26.4MB

The file 'A Safer Object Permanence Box 3D Printer Model' is (stl) file type, size is 26.4MB.

Description Files (2)

Summary

I wasn't satisfied with the object permanence boxes available, so created my own improved version.

Improvements include:

Sloped floor
No sharp edges
No sharp corners
No supports needed for the box
STL exports were terribly coarse, no harm in using more elements people!
This ended up being an igloo instead of a box, but does it matter? Its safe(er)! :D

By my unofficial reckoning, this ball satisfies the non-chocking hazard requirements as listed in 16 C.F.R. § 1501.4 so long as the ball is rigid enough to maintain its shape. Hence, I recommend printing a ball instead of using a 'ping pong ball'
https://www.ecfr.gov/current/title-16/chapter-II/subchapter-C/part-1501/section-1501.4

128g, 9.5h, 0.4mm nozzle

40mm (standard ping pong ball) = 1.57in > 1.25in.

Cheers!

ObjPermBox.stl	54.3MB
PingPongBall.stl	9.4MB