Printable 6200 bearing with 6mm balls
6200 bearing with air soft BB balls. Has a bit more slop right now than I would like but may be OK for some applications. I will be looking into tightening it up some.
UPDATE: v2 has tighter tolerances, a whole lot less wobble, races may need dressing, does not freewheel as much as original. Found that spinning one in a fast drill for a bit smooths them out nicely.