RE: [CAD_CAM_EDM_DRO] Re: Servo as a Spindle - Mariss?

Mach1 and Mach2 have spindle speed control. Two options are available. PWM
output, or, Step/Dir output.

The Step/Dir output provides a continuous pulse train that is proportional
to the requested speed. This would work directly with the G320s.

Cheers,


Peter Homann
mailto:Peter.Homann@...
Adacel Technologies Limited,
250 Bay St, BRIGHTON, 3186, AUSTRALIA
http://www.adacel.com <http://www.adacel.com>
Telephone +61 (3) 8530 7777, Facsimile +61 (3) 9596 2960
Mobile 0421-601 665


-----Original Message-----
From: onecooltoolfool [mailto:joevicar3@...]
Sent: Monday, 5 May 2003 9:07 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Servo as a Spindle - Mariss?


I like Jon's idea about a separate pulse generator feeding directly
into the G320 as a spindle control.

What are the speed limitations of the drive with a 500 ppm encoder
servo?

Would you have to isolate the PC from the spindle pulse train
somehow? Or just have two sets of inputs at the step/dir pins on the
drive?

Could the frequency generator be some inexpensive programmable chip?

I am using Mach1 (soon to be Mach2 hopefully) are there any spindle
controls being implemented by Art?

Jon, keep those ideas comming

Joe V.


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