easy print spool chuck for hand drill.
print the screw at 100% infill or the drill chuck will break the screw
there is a flat spot on the collar on the screw print that flat on the bed. use supports

print 2 of the spool holders 20% infill no supports
print 1 of the nuts 20% infill no supports
i used petg for this
screw on the first spool holder up against the collar on the screw
put on the spool and screw on the second spool holder
lock in place with the nut.
place in drill chuck and wind away.

MK3

Prusa i3

No

Yes

.2

100% and 20%

screw printed at 100% infill and supports
rest printed at 20% and no suppports