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Print head moves too far to the front

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Yes but it shouldn't hit the front after homing. This is in the firmware. I think you have to compile your own custom firmware. I have instructions but it's pretty involved. I'm wondering why it would hit the front. I was hoping you would say you had a um2go and you had the wrong firmware (um2 firmware on um2go). Changing the firmware is a lot more work than fixing your hardware issue.

Maybe some portion of the print head is sticking out to the front more than normal? Like the fan shroud? Or maybe the two skinnier metal rods that go through the print head are not perpendicular? These are easy to fix. Or maybe the homing switch is positioned a bit wrong.

With power off I would push the head around a bit - first see how much farther it can move after hitting the homing switch. Look at what is hitting the homing switch (should be the left/right rod that passes through the head but left of the block).

When the head is at the front of the printer is everything perpendicular? What hits first? It's supposed to be the head against the slider block. Is the slider block at the front vertical?

After checking these things out if you still have no idea could you show a video of it homing and then hitting the front?

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