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UM Original Offset Problem

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Posted (edited) · UM Original Offset Problem

translated to english by google:

Hello dear forum

new day, a new problem.

After I brought the original UM running again now the next problem.

No matter what I print a page of printing has always an offset there. In the appendix an example image. The lower edge is offset by about 1 mm. at higher objects it leads to hanging the "wall" of the object in the air and can easily be broken. Unfortunately, I have just a picture to it, however, would push behind if beihilft to finding a solution.

Has anyone ever had such a problem and possible solutions for me?

From the generated file can not occur, we have here a UM2 of solves the problem with no apparent problems. My approach is a new adjustment and calibration of the printer. All I know is not to start and exactly what a good approach would be.


Hallo liebes Forum,

neuer Tag, neues Problem.

Nachdem ich den UM Original wieder zum laufen gebracht habe nun das nächste Problem.

Egal was ich drucke eine Seite des Drucks hat immer einen Versatz drin. Im Anhang ein Beispielbild. Die untere Kante ist um ca. 1mm versetzt. bei höheren Objekten führt es dazu das die "Wand" des Gegenstandes in der Luft hängt und leicht herausgebrochen werden kann. Leider habe ich gerade kein Bild dazu würde es aber hinterher schieben falls es zu einer Lösungsfindung beihilft.

Hat jemand schon einmal ein solches Problem gehabt und evtl. Lösungsansätze für mich?

Von der erzeugten Datei kann es nicht kommen, wir haben hier noch einen UM2 der löst die Aufgabe ohne erkennbare Probleme. Mein Ansatz ist eine neue Justierung und Kalibrierung des Druckers. ICh weiß nur nicht so ich genau anfangen soll und was ein gutes Vorgehen wäre.



Frank Schumann


Edited by Guest
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    Posted · UM Original Offset Problem

    Please post german language only in german part of the forums.

    Is this a UM2 or UMO or something else?

    This problem is rare on a UM2 but common on the UMO and other printers. It is caused by "backlash". But backlash is complicated. Backlash means that the print head isn't moving all the way to the postition that the stepper is moving to. It is caused either by:

    A ) Belts too loose such that the head doesn't move all the way.

    B ) Friction too high such that the head doesn't move all the way.

    B is easy to test for - just push the print head around with power off. Make sure the resistance is about the same.

    A is also easy to test for - pluck the belts like playing a guitar string - particular the 2 short belts to the XY steppers. If an X or Y stepper belt is loose, loosen the 4 screws going to the stepper, then push down hard on the stepper as you tighten them back up again. Before doing that remove the cover that hides the stepper (one or two screws depending on when your UM2 was made).

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