Ive been enjoying the new Kabab toothpick quadcopters but Ive seen a ton of people posting on the internet about having trouble centering their drills.
I designed this to be printed in a rigid material and hold the 1.4mm drill bit and a King Kong propeller all in perfect alignment. Simply glue in a 1.4mm drill bit and hold the prop in place while you rotate the base to drill out the propeller.
This works best if your printer is well calibrated but it can be bored out if your overextruding a bit.
Currently configured for 1.4mm to fit the AMAX 1103 motors.
If anyone needs other sizes please feel free to remix, or request them and I can swap out the hole sizes.