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Author Topic: Manual Motor tuning  (Read 44170 times)

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Offline Yodawill2000

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Re: Manual Motor tuning
« Reply #10 on: November 01, 2006, 08:28:38 PM »
Yeah   It does all sorts of weird stuff .
I get Limit switch stuff when I dont get even have limits set ..
And I just realized My motor pully is slipping ..  ooiy ..
Gonna restock on locktight and try again tommorow .
I know Im getting close ..
Thanks man ..
Just frustrated so its time to shut her down and start again tommorow .
I'll get this shizz figured out and be making chips soon.
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Offline Chaoticone

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Re: Manual Motor tuning
« Reply #11 on: November 01, 2006, 08:37:11 PM »
Once you get the pulley tight, if it still wants to fuss, play with your motor tuning. ;D
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;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!

Hood

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Re: Manual Motor tuning
« Reply #12 on: November 02, 2006, 02:18:45 AM »
You may have to play about with the acceleration and velocity to get the motor running sweet.
Hood
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Offline Yodawill2000

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Re: Manual Motor tuning
« Reply #13 on: November 03, 2006, 08:40:40 AM »
Man   Steppers can be a PAIN !!!   lol

If I tune the z motor to run smooth , then the measurement calibration is off.
get the calibration right , then the motor stutters like a sick pig.
Im wondering If I need to up the Voltage ? Not sure where its at since it was preset way back.
The only trimpot I have on the driver board is labeled VR1 .
Is that the Voltage supplied to the A & B phase wiring ??
Also ,, I noticed last night that sometimes I would get a Limit switch warning
 when I wasnt even jogging the motor ??
What kind of Gremlin am I dealing with here ??   ???
« Last Edit: November 03, 2006, 09:08:18 AM by Yodawill2000 »
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Offline Chaoticone

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Re: Manual Motor tuning
« Reply #14 on: November 03, 2006, 09:38:15 AM »
Hey Yoda,
    I don't know about the pot. I'd have to be there. If your motor is not running smooth, it is skiping steps. That is what makes your cal. off. Slow your motor accel. and vel. down. I would try to get the voltage around 75V.
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;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 Yodawill2000

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Re: Manual Motor tuning
« Reply #15 on: November 03, 2006, 09:58:00 AM »
Thats what weird ..
I can tune it and it will jog smooth as silk ..
But when I go to the page wher I calibrate the steps per and tell it to move 2 inches ,
It moves maybe 1.25 inches.
I enter that into the how far did it move window then it sets the steps per.
From that point the motor stutters and pukes ???
From that point do I need to tune down the Vel/Acc ??

Also .. how can I tell what voltage the motor is getting ??
I have a hunch its way low..
Just have a DMM , no scope  >:(
« Last Edit: November 03, 2006, 10:01:52 AM by Yodawill2000 »
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Offline Chaoticone

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Re: Manual Motor tuning
« Reply #16 on: November 03, 2006, 10:12:42 AM »
Your steps per.... should stay the same. Write it down. slow down you accel. and vel. and manualy enter the steps per, see what that does. Be sure to hit save axis settings.
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;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 Yodawill2000

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Re: Manual Motor tuning
« Reply #17 on: November 03, 2006, 10:18:51 AM »
OK   I'll give it another whirl tonight..

so basically I shouldnt mess with the auto calibrate feature ??

Heres another voltage thought . I keep hearing that steppers run hot by design.
I was running the snot outta that thing last night and it stayed cool as a cucumber.
That a sign of the voltage being low ??
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Offline Chaoticone

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Re: Manual Motor tuning
« Reply #18 on: November 03, 2006, 10:34:45 AM »
I don't know about the auto cal. I have never messed with it. I have a good calculator.  ;D

Yes, cool steppers would be a sign of low voltage. I don't know anything about your set up. I have 70 VDC supplied to my geckos (drive). From ground to each phase, 35 VDC. Don't be mislead by this post. I no nothing of your set up. To new to know if this is what you should have. I do know there is allways more than one way to do anything. ;D

See if this helps.
http://www.cs.uiowa.edu/~jones/step/
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;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 Yodawill2000

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  • 107 107
Re: Manual Motor tuning
« Reply #19 on: November 03, 2006, 10:48:55 AM »
I have the spec sheet of my drivers at home ..
They arent gecko's by any means , I have 320's on my servo's and wish I had the cash to get another Lo-Cog pittman and a gecko.
Much mo' user freindly  :)
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