Member postings for Rupert Parry

Thanks very much to everyone who took the trouble to respond. Brian, that setup is really clever. Thank you for posting the photo it showed up in the thread just fine. Jason, the 750mm leadscrew has a diameter of 12mm which I'm hoping to turn down to 10mm at both ends. The larger leadscrews (1120mm and 1050mm respectively) are both 19mm in diameter and need to be reduced to 15mm at both ends. Frank, thank you the set up you suggested is exactly what I initially considered and is probably what I will end up doing if I can't find someone locally with a much larger machine. John, I did a test cut with the smaller leadscrew sticking out of the outfeed and poorly buttressed with a bodged together support. The results weren't great but it's difficult to say whether that was due to chatter from the flimsy support or the hardness of the steel.

Thanks again for the replies. I really appreciate the help.

Hello

I need to turn shoulders on the ends of 3 leadscrews for a homemade CNC machine. Even the shortest of the 3 leadscrews, at 750mm (the largest being 1120mm), is to large to turn on the 7 x 12 mini lathe I have in my workshop.

If any members in the London area think that they have a machine up to the task or can recommend a local firm that undertakes small jobs like this I would love to hear from them. I'm happy to reimburse for work done or swap for machine time on my Denford Triac CNC machine. Alternatively if anyone has had success supporting long stock on a 7 x 12 mini lathe then I would be interested to hear how to do it.

Many thanks in advance