Re: [CAD_CAM_EDM_DRO] Re: Does control s/w affect machine performance? max step rate

turbulatordude wrote:

>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "ballendo" <ballendo@y...>
>wrote:
>
>
>>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
>><davemucha@j...> wrote:
>>
>>
>>>I'm not sure if T-CNC or Mach are limited to a total of 45khz of
>>>
>>>
>>all
>>
>>
>>>three(4?) axis combined on a move, or if each of 3(4?) can move
>>>
>>>
>>with
>>
>>
>>>each getting 45khz ?
>>>
>>>
>>Dave, 45000 is the base step rate. At that rate(or a lesser rate),
>>any or ALL axes can be stepped simultaneously.
>>
>>
>
>IIRC, Mariss posted a list of maximum stepper speeds based on frame
>size. It's not he end-all of charts, but I thought that only the
>NEMA23 exceeded 1,000 RPM with any practical energy left to move
>anything ?
>
>

I showed off a very hasty 2-axis retrofit of the 150 Lb minimill at the
last NAMES show. I have some very old size 34 stepper motors connected
to the original leadscrews with a 1:1 belt drive. I was demoing it running
at 90 IPM, which works out to 1440 RPM. That did take 48,000 steps/sec
on the G201 (10x microstepping).

Jon