Messages

1

Galil / Re: How to ramp (spindle) in galil open loop control

« on: January 13, 2012, 10:44:48 AM »

Thanks Kenny,
Great idea. That's a simple PD controller.

I will try that also, right now what I am doing is a small single encoder with an induction sensor to one of the spindle pulleys plus direction signal provided from Mach3.

Luis fdo.

2

Galil / Re: How to ramp (spindle) in galil open loop control

« on: January 10, 2012, 09:18:59 AM »

»You may have to set a progressive sequence of outputing a  torque limit ramp  (TL).

That's what I though Mach 3 could probably do. There's another way which is using the Offset command:  OF.

Anyway, I don't know how to do it myself either because I think it may imply modifying the Galil plugin.  I don't think it may be possible to do it with the custom notify messages.

Any other idea?

3

Galil / How to ramp (spindle) in galil open loop control

« on: January 09, 2012, 06:03:04 PM »

Hi to everyone,
I have a Galil board controlling a DC driver and spindle without encoder.  I do this by using the Galil in open loop mode (PID disabled: KD=KP=KI=0). 

The Galil does respond to the Mach3 speed control but I haven't been able to output the control signal with a ramp.  If I want full speed it will just instantaneously output the 10V to driver creating large overshoot.  Neither acceleration from Galil (AC,DC) nor the acceleration parameters in Mach3 Motor Tuning will respond. The driver has no way to control minimum ramp also.

Someone knows the solution?

Regards!
Luis

4

General Mach Discussion / Re: Queue not refilling... why?

« on: August 29, 2011, 07:06:08 PM »

I'll do that Hood.
Ray: I do have a sleep(1000) in the macropump so it is not executing that much.
Thanks to both.
Luis

5

General Mach Discussion / Re: Queue not refilling... why? (SOLVED)

« on: August 29, 2011, 02:16:12 PM »

Found the problem!

I have an M-code to remove the menu from screen, so I entered it to the macropump.m1s as a line:
code "M1000"

It turned out this was the problem.
Solved it removing the Code"M1000" and entering the line DoOEMButton(348),  which is the only line in M1000.m1s

Hood, do you know why this happens?

Luis

6

General Mach Discussion / Queue not refilling... why?

« on: August 29, 2011, 01:32:30 PM »

Hi,
I have this problem: the queue is not refilling while running the g-code. It just empties an then stops movement for a couple seconds refills and continues until the queue empties.  I am using 40 in lookahead.

The machine worked fine until last week, so I though maybe could be a virus or something from Windows so I reinstalled the whole windows and reused the XML file: same thing.  So now I think it must be a configuration somewhere but just can't find it.  I've never seen this behaviour before.

Someone has the answer??

Thanks
Luis

7

General Mach Discussion / Re: Whose Fault Is ThIs?

« on: July 21, 2011, 03:03:19 PM »

Thanks, but exact stop mode is not a practical option for the kind of work required; both in work time and finish.  I'll email.

8

General Mach Discussion / Re: Whose Fault Is ThIs?

« on: July 20, 2011, 12:37:37 PM »

I have a stepper system and I've been dealing with this problem for around 3 years.  Never found a solution.  The only workaround I have found is reducing feedrate to the point where it doesn't lose steps.  In my case, I have all accelerations set equally but the problem is still there.

Would be nice to finally find a solution.  Every other code runs absolutely flawlessly except the cases refered in this topic.

9

General Mach Discussion / Macros and outputs ON during EStop ??

« on: July 20, 2011, 12:03:01 PM »

I have a macro in which I turn ON or OFF an output.  I works great but I need it doesn't work during E-Stop.  Is there a way to make this particular macro work during ESTOP ?

10

General Mach Discussion / Re: Whose Fault Is ThIs?

« on: July 19, 2011, 02:51:41 PM »

Any update on this issue being solved??