RE: [CAD_CAM_EDM_DRO] Troubleshooting, part II

Rick:

With TurboCNC, go to

Main->Setup->Motion Setup

It's called "Start Velocity"

|-----Original Message-----
|From: Rick Miller [mailto:apollo@...]
|Sent: Wednesday, February 20, 2002 5:14 PM
|To: CAD_CAM_EDM_DRO@yahoogroups.com
|Subject: Re: [CAD_CAM_EDM_DRO] Troubleshooting, part II
|
|
|> Try a min velocity of about 500
|There's a "min. velocity" setting? Where?
|
| and a max of 600. Use something like 50 for
|> acceleration. Now, these numbers are too low to do any reasonable
|machining,
|> but we're trying to get the motors working.
|>
|Changed those to the reccomendations above, still nothing...
|
|> What pin-outs have you set up in TurboCNC?
|X Step: 3
|X Dir: 2
|Y Step: 5
|Y Dir: 4
|Z Step: 7
|Z Dir: 6
|
|How about an analog voltmeter?
|I do have an analog meter; the direction pins are changeing approriately,
|but I can't get a reading off the step pins. I don't know if that
|is because
|it is not issuing steps, or if the meter simply can't read them?
|I'm using Gecko drives; should I set the pins to be "active high"
|or "active
|low"? I've tried both variations without luck.

You would have to infer this with an analog meter. Connect the meter and
observe the reading that you get when no steps should be happening. Then,
command a large number of steps and see if the voltage changes. (Use the
widest pulse rate that TurboCNC will support). If there's a change in
voltage, you can infer that steps are occurring. Because the pulse width may
be quite narrow, not seeing a change in voltage does not mean that no
stepping is occurring.

-- Jerry