I have only done this once, many, many years ago. I think I remember most, but I'm unsure if I have to align with a number on the thread dial?
I'm attempting to repair .575x40 tpi
Thanks.
Sorry, it's a 8 TPI leadscrew.You don't say what lathe you have, but the general rule is; even threads, close on any line, odd threads on any number, half threads on opposite numbers, quarter threads on one number (only), threads that a factor of the leadscrew can be closed anywhere on the dial., this works for lathes with 4TPI leadscrews.
But I just looked in the manual for my little SB1001 and it only goes to 32 TPI, so I can't do this.
One way have repaired threads if smashed. Is flip a HSS tool upside-down and press the threads back in to shape.I have only done this once, many, many years ago. I think I remember most, but I'm unsure if I have to align with a number on the thread dial?
I'm attempting to repair .575x40 tpi
Thanks.
If you cut the thread it may give a problem as it make the thread size small.I have only done this once, many, many years ago. I think I remember most, but I'm unsure if I have to align with a number on the thread dial?
I'm attempting to repair .575x40 tpi
Thanks.