- Feb 22, 2018
New to hobby machinist first post. I have a Harbor Freight Central Machinery 9 x 20 lathe. But I have trouble with the feed on the lathe. I have stripped the teeth of the 42 tooth worm gears. This is the gear that mates to the gear on the lead screw. Has anyone else had this problem.? Any suggestions on how to fix it so it does not happen a third time. Is there a way to make the lead screw more rigid in the apron?