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Author Topic: Rotational feedrate problem  (Read 8960 times)

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Re: Rotational feedrate problem
« Reply #10 on: January 08, 2007, 08:32:42 AM »
So is it the A only moves that are the trouble ?
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Offline rcrabb

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Re: Rotational feedrate problem
« Reply #11 on: January 08, 2007, 09:26:35 AM »
Yes, A only moves. The rotational feedrate goes to high and stalls my motors.
Ryan
Re: Rotational feedrate problem
« Reply #12 on: January 08, 2007, 09:30:34 AM »
Cool that will tell me where to look in the code... that is a section of code that had not been worked on in a ver long time...
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Offline Chaoticone

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Re: Rotational feedrate problem
« Reply #13 on: January 08, 2007, 09:35:28 AM »
Hey Rcrabb,
     I will load it in my machine pc sometime today. Does your a axis rapid jog without missing steps? I'm not seeing it on this PC. The a axis does vary, but from what I can tell, it should because you are using the diam. for feedrate and it seems consistent with a z move.


Brett
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Offline rcrabb

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Re: Rotational feedrate problem
« Reply #14 on: January 08, 2007, 09:43:13 AM »
Use the second file I posted (rotational test.nc)
Ryan

Offline Chaoticone

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Re: Rotational feedrate problem
« Reply #15 on: January 08, 2007, 09:54:27 AM »
You got it.

Brett
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Offline Chaoticone

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Re: Rotational feedrate problem
« Reply #16 on: January 08, 2007, 10:30:22 AM »
Hey Rcrabb,
   I have sent you a PM.


Brett
;D If you could see the things I have in my head, you would be laughing too. ;D

My guard dog is not what you need to worry about!

Offline Chaoticone

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Re: Rotational feedrate problem
« Reply #17 on: January 08, 2007, 10:57:19 AM »
Hey Ryan,
    Here is a screen shoot of the check box we talked about.


Brett
;D If you could see the things I have in my head, you would be laughing too. ;D

My guard dog is not what you need to worry about!
Re: Rotational feedrate problem
« Reply #18 on: January 08, 2007, 01:08:12 PM »
I need you to do the following...

In MDI do a G01 Z.1 A 360 F80

then do a

G01 Z1.0 A.1 F80

and last G01 A360 F80

Tell me if you get an over speed on them.

Thanks


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Offline rcrabb

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Re: Rotational feedrate problem
« Reply #19 on: January 08, 2007, 02:34:14 PM »
I did your test and did not get an overspeed. I attached my XML file and a test file that has the overspeed problem. Watch the feedrate DRO when the code gets to line N400. It jumps from 20000 to about 25000.
Ryan