

2·
29 days agoAnd ball bearings have the advantage of meeting OPs requirement: they will try to get everywhere.


And ball bearings have the advantage of meeting OPs requirement: they will try to get everywhere.


I filled a print with pennies, and it worked out better than I expected. They didn’t get everywhere, though, so it might not be what you’re looking for. 🤣
🤣🤣