Tenshe shares:
The main idea was that the square holes have a 27% wider opening surface without letting the round particles fall through any easier (the holes are still 1.5mm wide). Also a sphere and a square hole can never form a seal unlike a sphere and a circular hole. Furthermore I put more holes of them in the same area.
download the files on: https://www.thingiverse.com/thing:3222374
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
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