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  1. 26-03-2010 #3
    HiltonSteve's Avatar
    Lives in Derby, United Kingdom.
    HiltonSteve
    Last Activity: 20-04-2024 Has been a member for 9-10 years. Has a total post count of 334. Received thanks 15 times, giving thanks to others 1 times.
    Quote Originally Posted by Ross77 View Post
    Sweet. Looks similar to what I was planning, although I'll be using a 3 phase motor and vfd. Any reason for using DC? Where did you get the ER collet with the threaded end or have you made it?
    Reason for DC was because you get a smoother torque curve through the speed range (apparently) which means it should still provide decent torque when running slowly, tell you next week...!

    I got the ER collet chuck from Fleabay via China, it came with a straight shank and I machined the thread on etc, 19mm x 1mm pitch left hand! Why is nothing ever simple.....
    Last edited by HiltonSteve; 31-03-2010 at 10:54 PM.
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