Machining Ballscrews with a mini lathe (& ballscrew support questions)

[HankMcSpank]

Just to give a bit of closure here - I got around to setting up my machine with the new 'old' leadscrews tonight - they are in fact 1/2" pitch doh...kn8 mentioned a figure close to this when he offered them up, but to my untrained eye they looked like 3mm! (BTW if anyone could look at those pictures above towards ID'ing the likely leadscrew I have, it be useful if I want to source some delrin nuts in the future ...as kn8 said, the leadscrew 'thread' diamater is about 11.8mm ...the pitch is 1/2" pitch....I'm easily confused at the imperial way of describing stuff!)


I'm using 1/8th step on my driver which works out at about 125 pulses per millimetre (& gives me a resoluton of about 0.0078mm :-) )

With respect to rapids, I'm now getting a figure of about 6000 on the motor tuning page (previously about 500!) & my backlash measures 0.06mm - not sure if this is good or bad, but it's very good for my needs!

Thank kn8 matey....you've made my whole CNC experience a whole lot faster, quieter & enjoyable. :dance: