x axis belt rubbing.

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kosal850
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x axis belt rubbing.

Post by kosal850 » Tue May 06, 2014 12:23 am

Does anyone have this issue on there M2. it doesn't hinder printing but I would think overtime it would ruin the belt.
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jimc
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Re: x axis belt rubbing.

Post by jimc » Tue May 06, 2014 1:17 am

mine is close like that but doesnt rub. is the pulley on the stepper up a little too high? just lower the pulley on the shaft just a hair. the belt should just mis by maybe the thickness of a business card..if that.

kosal850
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Joined: Sun May 04, 2014 3:29 am

Re: x axis belt rubbing.

Post by kosal850 » Tue May 06, 2014 1:24 am

jimc wrote:mine is close like that but doesnt rub. is the pulley on the stepper up a little too high? just lower the pulley on the shaft just a hair. the belt should just mis by maybe the thickness of a business card..if that.
the problem i see is the belt clamp doesnt allow the belt to sit lower, so even if i lower the pulley it rubs elsewhere (flange of the pulley)..I noticed it during assembly.

i want to print another belt clamp that has a deeper groove so the belt will move down a little more. does anyone have a cad file for it? so i can modify it.

or maybe put some small spacers washer between the belt clamp and the x axis mount.. so the whole clamp sits down a little further..
Last edited by kosal850 on Tue May 06, 2014 1:31 am, edited 1 time in total.

cmenard
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Re: x axis belt rubbing.

Post by cmenard » Tue May 06, 2014 1:29 am

I spaced my belt holder down and dropped the pulley on the motor. This makes the belt just miss. I checked the github site and there doesn't seem to be a printable belt holder there. At least not the same part that came with the printer.

kosal850
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Re: x axis belt rubbing.

Post by kosal850 » Tue May 06, 2014 1:31 am

cmenard wrote:I spaced my belt holder down and dropped the pulley on the motor. This makes the belt just miss. I checked the github site and there doesn't seem to be a printable belt holder there. At least not the same part that came with the printer.
did you use washers?

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jimc
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Re: x axis belt rubbing.

Post by jimc » Tue May 06, 2014 1:42 am

hmmm my belt just touches like yours does on in the clamp but still just misses on the back side. is it actually rubbing with enough force that you can hear it making noise or anything like that? if you think it will continue to rub and wear a bunch of the belt away then put a washer under each bolt. just for reference i have 3/32" of motor shaft sticking up above the pulley.

kosal850
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Re: x axis belt rubbing.

Post by kosal850 » Tue May 06, 2014 1:59 am

I had the belt pulley positioned as the manual states 2.5mm for the x axis stepper but that didn't work right (it was rubbing badly at this position) so i moved it down a little further right now it sits a 3.65mm.

I think i'll just add some spacers to the belt clamp.

cmenard
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Re: x axis belt rubbing.

Post by cmenard » Tue May 06, 2014 2:04 am

kosal850 wrote:
cmenard wrote:I spaced my belt holder down and dropped the pulley on the motor. This makes the belt just miss. I checked the github site and there doesn't seem to be a printable belt holder there. At least not the same part that came with the printer.
did you use washers?
I used a piece of .025" lexan for the spacer. My belt had rubbed and discolored before I caught on to the problem.

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jimc
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Re: x axis belt rubbing.

Post by jimc » Tue May 06, 2014 2:08 am

in your second pic, is that a crack in your motor mount? little white line at the front corner of the motor? print yourself a spare just to have one on hand

kosal850
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Re: x axis belt rubbing.

Post by kosal850 » Tue May 06, 2014 2:11 am

jimc wrote:in your second pic, is that a crack in your motor mount? little white line at the front corner of the motor? print yourself a spare just to have one on hand
hmmmm.. i just took a peek with my microscope camera that does look like a crack... hmmmm
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Last edited by kosal850 on Tue May 06, 2014 2:22 am, edited 1 time in total.

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