inspired by the Push Drill with Adjustable Chuck from LoboCNC
i want the chuck driven by my IXO-Drill. The Chuck is available on http://www.thingiverse.com/thing:792988 ...

first Version has wrong bit-diameter ... now (V3) everything is fine and smooth.

i printed with 100% Infill course the Chuck-fingers broke if there are not solid.
ok - its hard for the printer - i printed with raft STL staying on the bit. i've some few strings at the overhang but no problem.