A Safer Object Permanence Box
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I wasn't happy with the object permanence boxes available, so created my own improved version. Improvements…
- Ocena
- 4,5 / 5
- Polubienia
- 17
- Pobrania
- 69
- Wydruki
- 2
- Wyświetlenia
- 393
- Oceny
- 2
Aktualizacja u źródła:
Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other Toys & Games
- Licencja
- Creative Commons — Attribution — Noncommercial — Share Alike
I wasn't happy 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
40mm (standard ping pong ball) = 1.57in > 1.25in.
Cheers!
Print Settings
Printer Brand:
Prusa
Printer:
I3 MK3S
Brim:
Yes, 8mm
Supports:
No
Resolution:
0.2mm height, 0.4mm nozzle
Infill:
10%, gyroid, 3 walls
Filament: 3D Printing Canada PETG Grey, Yellow
128 grams, 9.5h
How I Designed This
Designed in Onshape.
Designed with 3D printing in mind, the main body requires no supports (overhangs are <30 deg). Main body will benefit from a 8mm brim to avoid warping due to the generous fillets used.
The ping pong ball needs support material for >40 deg (set in slicer)