Davinci - USB drill holder
thingiverse
I uploaded the half of a bearing to the repository but the ID needs to be larger so don't print the bearing yet. I would just hot-glue this thing to the side of the existing carriage. Hopefully we can do it with halves of a printed LM8UU bearing. I also forgot to make the drill lower than the hotend so please wait for version 2, lol. A USB drill holder for 29.4 mm uses LM8UU bearings. Buy a Mini Chuck on eBay for $4 to fit 3mm bits. I haven't printed this myself yet; I will try and add in a clamp for the drill.
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