Bent Leadscrew

K

ken ken quarter

AzB Silver Member
Silver Member
Put the leadscrew off my Logan Model 200 into another lathe to clean up the gear end leaving about 30" sticking out of the headstock end unsuported. Turned on the drive in slow backgear but the centrifucal force of the spinning rod caused it to bend before I could get it stopped. The leadscrew is 54" long with the bend in the upper middle of the threads. Can it be straightened enough to run on the half nuts? If it can how without causing smaller compound bends? I know that I should have put it through the spindle down to the tailstock supporting the whole length but short cuts often get me in trouble. This is my dedicated taper lathe so the leadscrew is a must. Any and all help or ideas will be tried, I hope this is not the only bent leadscrew story known to AZers. Thanks, Ken Ken.
 
Don't think you will ever get it straight again. It would bother me to no end just knowing it was at one time bent. Get a new one.
 
sorry to hear of the trouble Ken.

But unless you know a blacksmith that has magic on his side the right move is to get a new one..........don't damage more material or equipment trying to use something that might or might not bite you in the butt because its not exactly how its supposed to be......much less headache and your cutting bad things off at the pass by just getting a replacement........

hope your well,
Keebie
 
lay it up across two 2x4 and work the bend out of it.you can roll it while you work it.that lead screw is not heat treated,it should push around easy.

bill
 
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