bigtreetech / BTT-Pi

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M3 mounting screws cause electrical short #10

Open aamott opened 1 year ago

aamott commented 1 year ago

Issue: There is a positive and negative 12v connection close enough to the mounting screw holes that using an m3 screw instead of an m2.5 screw will cause a short. I found this out when my board started glowing by the mounting hole next to the USB C and smoke came out. Earlier a spark came from the hole on the other side of the SD card.

Since this is a 3D printer board above all and m3 screws fit with minimal resistance, this is a major cause for concern. The fix should be easy though: just add a little more clearance between power and GND.

I would love to recommend this board to my friends, but I can't do that with an easy short right there. Can we get a fix?