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Author Topic: Manual Motor tuning  (Read 21606 times)

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Re: Manual Motor tuning
« Reply #30 on: November 04, 2006, 05:56:42 PM »
Think I got rid of the noise.
Had all my cables tied together tight as a Tick ..
Must of had some induction going on.
Here's another one for the guru's out there ..
I can jog till the cows come home .. smooth as silk.
but when I run code (Roadrunner)
The z motor loses step sometimes .
By the end of the run Im barely cutting metal ?
Why would my stepper choke on a slow jog when it's gravy on a regular jog ?

Offline Chaoticone

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Re: Manual Motor tuning
« Reply #31 on: November 04, 2006, 06:15:26 PM »
Hey Yoda,
    Try slowing your vel. and accel. down some more in motor tuning. I would back these way down, ( you are pretty close though, I think ) and creep up until I got repeatability. Are you running in CV mode? What kind of tool are you running when it looses steps?

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: Manual Motor tuning
« Reply #32 on: November 04, 2006, 06:27:25 PM »
I get the Vel and accel down suggestion.
But what is CV mode ??
Im using a 1/4 inch bit  cutting in aluminum .
Just in the testing phase ..
Thanks Brett
I owe ya a beer or sumptin'

Not being alone in this challenge means alot to me.

Hood

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Re: Manual Motor tuning
« Reply #33 on: November 04, 2006, 07:03:35 PM »
CV = Constant Velocity
ES = Exact Stop
There is info in the "Using Mach3" Manual on both these modes.
Hood
Re: Manual Motor tuning
« Reply #34 on: November 04, 2006, 07:13:08 PM »
Thanks Hood
Will crack the manual open after supper ..

Hood

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Re: Manual Motor tuning
« Reply #35 on: November 04, 2006, 07:15:56 PM »
Just had a look, pg113 (10.1.16) has info.
Hood
Re: Manual Motor tuning
« Reply #36 on: November 05, 2006, 12:15:32 PM »
So whats the preferred setting ?  CV or ES ?
I will be cutting metal if that matters.
Its been in CV mode up to this point ..

Hood

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Re: Manual Motor tuning
« Reply #37 on: November 05, 2006, 01:08:52 PM »
CV is probably best for most things, if you are finding you are getting rounding at corners when it is supposed to be a sharp corner then you will have to use  Exact Stop, or you may be able to mess with the rounding compensation or whatever its called.
Hood
Re: Manual Motor tuning
« Reply #38 on: November 05, 2006, 01:31:18 PM »
Thanks ..
I think I might know why I'm having the issues with my z motor.
If I get it to jog fine then it stalls running gcode moves.
then I tune it to work with GCode and it stalls on jog !!!   OOiy

The stepper driver requires a 15V to 35V pwr supply .
Guess what the kit came with .. 15 !!!

lol   
Im gonna get a decent 30V supply and see if she acts better.
the motor spec is 2.5 V

Hood

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Re: Manual Motor tuning
« Reply #39 on: November 05, 2006, 01:38:47 PM »
2.5V motor will run a lot better on 30V but really should run fine on 15, if only a little slower. 30V PSU will certainly do no harm and can only do good.
Hood