Original Prusa i3 MK2S is a successor to Original Prusa i3 MK2 with small hardware tweaks for easier assembly and improved reliability.

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Geometry of X and Z axis

After mounting the Z and X axis on the frame, I tried to put the X axis at the top by rotating the screws of the Z motors. But when I am at the very top on the left motor, I can't put the right one at the same level, it's come down by itself at 2 or 3 mm from the top. It seems the general geometry of the rods are not good.

After investigation, I found the X-carriage part has been badly printed , one of the hole for iserting the rod is not perpendicular to the bearing axis. See the picture.

Block Image

The point has been checked by chat with Prusa and a new part will be sent to me next week.

Thank you for Prusa reactivity

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Did the new part end up fixing the problem? I have the same issue.

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Yes, without any issue

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Thanks, I printed a replacement on another printer and it solved the problem for me as well.

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I have the same issue, but with the other x end ("x-end-idler"). I will try to print a replacement on my friends printer, hope it will be accurate enough.

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Chosen Solution

Hi Jacques,

I'm glad your issue got solved. Looking forward to your prints, we have a hall of fame on our forums ;)

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Jacques Patenet will be eternally grateful.
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