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X axis belt "twisting"  

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Einsenhorm
(@einsenhorm)
Active Member
X axis belt "twisting"

Hi, 

Sadly I'm unable to find something on this kind of problem, so I need your help. The problem is that the upper part of the X axis belt is not parallel  to the lower part of the belt on the motor side... well it's kinda hard to explain it with word so a photo. 

I think the screw on the upper part is the culprit, and as you can see it's begining to "cut" the belt.

To add infos, it's a kit MK4, Ive followed the steps as best as I could but I may have made a mistake ( donnu . . . ). When I move the belt in it's proper position it go twisting instantly if the extruder move on the axis. 

Alex. 

This topic was modified 3 weeks ago by Einsenhorm
Posted : 25/05/2024 6:15 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: X axis belt "twisting"

The most common error is the toothed pulley on the X| Motor shaft being bac to front
this is how it should be mounted


which is unusual, because most people expect the retaining boss, to be nearer the motor

 

Regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 25/05/2024 8:49 pm
Einsenhorm
(@einsenhorm)
Active Member
Topic starter answered:
RE: X axis belt "twisting"

I've check and the motor is at the correct position, any other idea ? 🤷‍♂️

Posted : 26/05/2024 8:22 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: X axis belt "twisting"

do you have a picture of the X Motor and x motor bracket from the left hand side, showing where the belt goes into the  bracket? 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 26/05/2024 8:46 am
Einsenhorm
(@einsenhorm)
Active Member
Topic starter answered:
RE: X axis belt "twisting"

Here, I hope that's the photos you need

Posted : 26/05/2024 8:55 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: X axis belt "twisting"

that looks ok!,    is there any  obstruction in tunnel that the belt goes through?

 

Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 26/05/2024 9:05 am
Einsenhorm
(@einsenhorm)
Active Member
Topic starter answered:
RE: X axis belt "twisting"

Only this screw 

 

Posted : 26/05/2024 9:41 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: X axis belt "twisting"

that screw is the X axis smooth rod buffer, it should not be long enough to go into the Belt tunnel!

Regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 26/05/2024 3:32 pm
Einsenhorm
(@einsenhorm)
Active Member
Topic starter answered:
RE: X axis belt "twisting"

Ok well ... I'm ashamed to say this but i've used a M3x25 instead of the M3x16. I've changed it but the part is damaged, I will try to fix it...

Thanks for your help 
Regards Alex

Posted : 26/05/2024 8:06 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: X axis belt "twisting"

Oooops! 
at least you found the issue
just change the screw, clear the swarf, the part should be plenty strong afterwards...  

regards Joan

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 26/05/2024 8:19 pm
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