Thread: Multi thread cutting
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03-10-2013 #1
Last Activity: 28-05-2023
I need to cut a thread on (say) 30mm brass rod that engages with m20 threaded rod (2mm pitch?). The 30mm is only a nominal diameter at this ideas stage. Anybody got any formula to calculate the diameters according to the pitch and number of starts on a thread ?
OR am I being stupid, will a 2mm pitch external thread on just fit regardless of the diameter of each rod ?
I only did O level maths over 50 years ago, so don't go into much beyond basic trig svp.
I have a mini lathe (in bits at the moment) with a metric thread cutting leadscrew btw.
Cheers,
RobLast edited by cropwell; 03-10-2013 at 04:32 PM. Reason: added info
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