Re: [CAD_CAM_EDM_DRO] Speaking of VFDs

Hello Tim generally you shouldn't go over 6000 revs
and a healthy limit is some 4300 revs. Just my estimate.
The bearings limit is generally 7500 revs but you have more parts
involved like the varimatic belts. So i would go
really seldom over 4000 revs.
good luck with BB
Sven Peter

Tim wrote:

>
> I now have a VFD on Bridgett (Bridgeport Series II with Gecko G320s
> installed). Question is, how fast can I turn the spindle safely. The
> stock mill has a allows you to crank it up to 3500 rpm. The VFD I have
> will do 180 hz so it could push the spindle up to something like 10500
> rpm. Now I know that is way too fast and something would get destroyed,
> but what would be a reasonable top speed to run for light cuts and small
> end mills?
>
> Tim
> [Denver, CO]
>
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