A friend hinted at an excellent way to make more accurate threads by hand. The rod is mounted in a drill chuck and the die in a vise. The chuck is rotated by hand (unless the drill has an option for really slow gear), and the rotation compensates for small inaccuracies in the alignment.

I have tried this with 10 cm long threads and it worked well for atleast that distance.

— Petteri Aimonen on 12.09.2010 at 07:29 (UTC)

I am in the process of doing the same thing! Thank you for sharing this. Your engineering knowledge is impressive.

Stephen Gard

— Stephen Gard on 30.03.2014 at 09:12 (UTC)

I tried a lot to repair my defective made in china bubble gun. I could set all except gear mech. I dont know how to align central moving part with other gears?

— Rajesh on 07.04.2015 at 02:16 (UTC)

this is not what i wanted

— zfdtz on 04.01.2016 at 18:41 (UTC)

Excellent information!!. I'm not doing a toy car but information on gears and gums has been very enlightening.
Thank you for sharing

— Vicente on 27.02.2016 at 09:11 (UTC)