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UM1 Difficult Head Movement


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Posted · UM1 Difficult Head Movement

I have an UM1 and when trying to move the print head by hand, there are several spots where it is almost impossible to move.

When trying to use the bed leveling wizard, the print head cannot move freely in all directions.

What is the best way to "square up" my UM1 again and make it so that the print head can move freely in all directions?



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    Posted · UM1 Difficult Head Movement

    There's quite a bit of info in this thread: http://umforum.ultimaker.com/index.php?/topic/4380-how-to-square-axis-in-assembly-solved/

    It also showed an uncommon problem where the head of the printer was not square.

    Besides the squareness of the rods you might check:

    - Lubrication. The axes likes a single drop of a light machine oil such as sewing machine oil.

    - that no belts are rubbing against the side of the machine.

    - that the the end caps for the rods aren't causing too much friction

    - that the rods haven't become bent

    There's probably other stuff to check but that's what I can think of at the moment.


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