zr1nsx
Aluminum
- Joined
- Dec 31, 2007
- Location
- indianapolis
When using a rotary phase convertor, is it possible to quickly reverse spindle direction? Example, tapping at 850 rpm and reversing without stopping spindle?
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I'm sure the price of the RPC may have been the determining factor, but going from a static to a rotary when there are so many VFD's out there semi boggles my mind. Unless the RPC was a large unit that powers multiple machines, a VFD would have been a much better choice...in my opinion anyway.
Stuart
I'm sure the price of the RPC may have been the determining factor, but going from a static to a rotary when there are so many VFD's out there semi boggles my mind. Unless the RPC was a large unit that powers multiple machines, a VFD would have been a much better choice...in my opinion anyway.
Stuart
When using a rotary phase convertor, is it possible to quickly reverse spindle direction? Example, tapping at 850 rpm and reversing without stopping spindle?
Are you superman or what? At 850 RPM you would bury any tap in a fraction of a second, how can you reverse it fast enough? I tap 10-32 in aluminum with a Tapmatic at 800 RPM all the time.
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i watched a friend's brother speedio tap a 3mm (which i think is similar pitch) at 5000 rpm and its tapping the drilled hole about as fast as i would consider drilling it. his machine can start and stop the spindle in 200 milliseconds at 16K rpm.
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