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General Mach Discussion / Re: Spindle orientation on a Bridgeport...
« on: February 21, 2018, 08:09:14 AM »
Ok, before i go too deep on mechanical indexing etc - all of this is a way off yet, lets have a re-visit to my setup..
I have a Bridgeport Knee mill with CNC everything It has recently been tagged as a KMVMC (knee mill vmc)
It has a 3Hp AC motor running sensorless vector drive with VFD at a 1:1 ratio, max speed is wound up to 125Hz to give me 4000rpm.
Is there a way to calculate a size of AC servo motor that would slot in and give me the same (or better) performance??
It seems most common ones only go to 2500rpm so would need to run at 1:1.6 ratio.
Just as a cost effectiveness exercise.
I have a Bridgeport Knee mill with CNC everything It has recently been tagged as a KMVMC (knee mill vmc)
It has a 3Hp AC motor running sensorless vector drive with VFD at a 1:1 ratio, max speed is wound up to 125Hz to give me 4000rpm.
Is there a way to calculate a size of AC servo motor that would slot in and give me the same (or better) performance??
It seems most common ones only go to 2500rpm so would need to run at 1:1.6 ratio.
Just as a cost effectiveness exercise.