RE: [CAD_CAM_EDM_DRO] Re: Why is my feedrate slow with stepper motor

Hi, Roger:

Good to hear that you're making progress. Can you take a scope and see how
fast you can send a pulse train to the motor drives? That'll tell you where
your software/computer limitation is, which will suggest when you may either
drop back to DOS or get a newer computer for Windows.

If you have "six wire" motors, you can use them with bipolar as well as L/R
drives. You simply connect either from center tap to one end of the coil or
from coil end to end. So, you might be able to use your existing motors and
save a few bucks. What's nice is that you "upgrade" a little bit at a time
rather than expend a large buck all at once.

What types of equipment are you using?

-- Jerry

|-----Original Message-----
|From: Roger Nicholas [mailto:rnichol1@...]
|Sent: Saturday, March 23, 2002 9:47 PM
|To: 'CAD_CAM_EDM_DRO@yahoogroups.com'
|Subject: RE: [CAD_CAM_EDM_DRO] Re: Why is my feedrate slow with stepper
|motor
|
|
|I found the hiccup in my data stream.
|
|I'm using K-Kam-3 - windows based software. The software provides a
|screen readout of position and plots the tool path in real time with
|the output to the printer port. There is a setting to disable position
|update. I tried it and my hiccup went away!. I'm now able to get
|about 3.5 IPM before torque falls off and I loose steps. (Up from 1.5
|IPM).