:cheers: I purchased a compumill 1500 which is to me a big machine, but to most, probably a small machine. the table is 42 x 9, bridgeport size. The mill is cnc with manual controls. The spindle is a nmtb 30. I have a bt 30 collet holder for er16. I tried to match the drawbar threads, appears to be somewhat different. My drawbar is susposed to be 1/2 x 13 and is a power drawbar by Align.
My question, is the bt 30 and the nmtb 30 interchangable in the same spindle and if not, what is the difference... I suspect it is (bt 30) metric and the nmtb 30 is english.
If you can help, please respond....
Thread: Collets? how and why?
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05-29-2006, 01:36 AM #21
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Collets and holders....
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05-29-2006, 04:01 AM #22
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hmmm can't help much with your question but how about posting some pics of your new machine?
JR
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05-30-2006, 02:31 AM #23
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Show my machine....#87 show my shop.....
Thanks for inquirey...check number 87 and that is the best for now.... Shop is being build as i get the $ to do.... I have been trying to get some tools and end mills and so on. I have to have 220 trenched in and get a rotary converter for 3 phase, etc. I am looking at a 7 hp size so it will work with any reasonable piece of equipment for us little guys.......anyway... :cheers: to ya
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