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Messages - Yodawill2000

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41
General Mach Discussion / Re: Manual Motor tuning
« on: November 04, 2006, 10:06:24 AM »
Getting closer here !!!
Got the z motor running calibrated.
The only Issue I have now is errant Limit switch errors when Im not
near a limit ?
It even happened once when no motors where moving ??

42
General Mach Discussion / Re: Manual Motor tuning
« on: November 03, 2006, 03:43:40 PM »
Gotcha !!
I happen to have 2 spare drives in case I blow it up  :)
I originally planned on going all Stepper but ended up buying a X/Y servo setup , After I bought the stepper gear. 

43
General Mach Discussion / Re: Manual Motor tuning
« on: November 03, 2006, 03:33:16 PM »
Its driving the micro feed shaft on a Mill/Drill ..  no screw involved until I convert it to the ballscrew setup.
This is a temp solution.
Im not near the machine right now, cant remember the make of the drive.
140 Oz , 200 spr  eight wires coming out of it.

Lots of help I am huh  .. hehe 
If I auto calc it and tune to be smooth it takes about a minute to move an half inch.
Thats why I want to increase the voltage as Im sure its set to motor spec .
I keep reading here that you should set the voltage WAY above spec.
I suppose my frustration is the X and Y ballscrews are driven by some nice servo's.
Set those up in about 10 minutes !!  Spoiled me .. hehe 

44
General Mach Discussion / Re: Manual Motor tuning
« on: November 03, 2006, 11:25:35 AM »
Quick voltage question.
If I send more voltage to my stepper will the RPM increase accordingly?
With no changes made in Mach motor tuning ?
I want to experiment with a driver I know nuttin' about.
If the RPM increases I will know Im tweaking the right direction :)

45
General Mach Discussion / Re: Manual Motor tuning
« 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  :)

46
General Mach Discussion / Re: Manual Motor tuning
« 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 ??

47
General Mach Discussion / Re: Manual Motor tuning
« 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  >:(

48
General Mach Discussion / Re: Manual Motor tuning
« 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 ??   ???

49
General Mach Discussion / Re: Manual Motor tuning
« 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.

50
General Mach Discussion / Re: Manual Motor tuning
« on: November 01, 2006, 08:04:06 PM »
Still befuddled ??
I did the math ..
3680 step to move an inch .
If I use that in motor tuning my z motor pukes ???
What am I missing here ??

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