X Stepper Keeps Dying

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angel-tech
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Re: X Stepper Keeps Dying

Post by angel-tech » Fri 29 Nov , 2013 17:18 pm

it could be noise in mach or crap on the screw

andy_con
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Re: X Stepper Keeps Dying

Post by andy_con » Fri 29 Nov , 2013 17:59 pm

Trouble us, is it's missing steps

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Re: X Stepper Keeps Dying

Post by angel-tech » Fri 29 Nov , 2013 18:04 pm

both would cause this, noise is where I would start.

Do you loose steps when the spindle is off ?

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Re: X Stepper Keeps Dying

Post by andy_con » Fri 29 Nov , 2013 18:41 pm

Makes no odds spindle running or not

angel-tech
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Re: X Stepper Keeps Dying

Post by angel-tech » Fri 29 Nov , 2013 19:13 pm

there are settings for debounce in the smoothstepper config, have you set anything in there.

I'm not up on smoothsteppers so it's hard to advise, could you go back to the old setup and try it. It may be the smoothstepper that has the problem.

andy_con
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Re: X Stepper Keeps Dying

Post by andy_con » Thu 05 Dec , 2013 15:42 pm

tom in order to re tune the steppers I need some info, can you help?

I need number of steps per mm and lead screw pitch

do the drivers do half steps?

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Re: X Stepper Keeps Dying

Post by angel-tech » Thu 05 Dec , 2013 18:54 pm

drivers are running half steps, 200 steps per, 1500 velocity, 150 acceleration, step pulse 5.

pitch is 5mm

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Re: X Stepper Keeps Dying

Post by andy_con » Fri 06 Dec , 2013 0:36 am

tom you free for a phone call tomorrow?

ive pretty much rules everything out other than an issue with the table its self

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Re: X Stepper Keeps Dying

Post by angel-tech » Fri 06 Dec , 2013 0:42 am

yes mate.

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Re: X Stepper Keeps Dying

Post by andy_con » Sat 07 Dec , 2013 0:20 am

well what a busy day, I have finally found the cause of the long term issue ive been having with the x axis. two knackered bearings on the table which I replaced today.

the machine is now running very well.

tom is a star, had a number of phone calls with him today and he pretty much talked me though replacing them. top man many many thanks

when putting the bearing the opposite end to the stepper back I managed to damage it. I really struggled to get the lead screw back into the bearing.
so may need another phone call when I get a replacement bearing :)

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