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michaelb123

Z Axis appears squashed Ultimaker 2 coverted to Ultimaker 2+

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Hello, I have an Ultimaker 2 that was upgraded to the Ultimaker 2+.  I'm using Cura 3.0.4 and my z-axis appears to be squashed using the benchy print out.  I'm not sure what is wrong can anyone please help point me in the right direction.

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Height should be around 48.00 mm, but I'm getting closer to 24.00 about half.

I did replace the heat bed on this unit at one point as well as upgrade the device from Ultimaker 2 to an Ultimaker 2+.  I'm curious if this is a cura setting or a cable backwords, etc?  Thanks,

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Edited by Guest

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Should I be using the Ultimaker 2 or Ultimaker 2+ firmware on this printer?  I currently updated it to the latest Ultimaker 2+ firmware, since the upgrade kit said the printer was now a Ultimaker 2+.  However, I'm now wondering if the firmware should really be a Ultimaker 2?

Edited by Guest

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You have to upgrade to the "plus" firmware. There are twice as many steps/mm because of the 2:1 gear ratio. Plus I think it might turn the other way?

Also you have to do a factory reset to move the steps/mm setting from default firmware setting into the eeprom. Without a factory reset it tries to use all your previous values (including steps/mm on z axis).

Also it's possible you connected a fan cable to the Z 8/16 microsteps jumper. You want the jumper not connected - it's right in the middle of the board. Some people connect one of the fan cables to that by accident. If you look carefully it says something about 8 versus 16 microsteps for Z axis. And the fan cable is close enough to a short to make the stepper switch to 16 microsteps and hence move half as far.

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You have to upgrade to the "plus" firmware.  There are twice as many steps/mm because of the 2:1 gear ratio.  Plus I think it might turn the other way?

Also you have to do a factory reset to move the steps/mm setting from default firmware setting into the eeprom.  Without a factory reset it tries to use all your previous values (including steps/mm on z axis).

Also it's possible you connected a fan cable to the Z 8/16 microsteps jumper.  You want the jumper not connected - it's right in the middle of the board.  Some people connect one of the fan cables to that by accident.  If you look carefully it says something about 8 versus 16 microsteps for Z axis.  And the fan cable is close enough to a short to make the stepper switch to 16 microsteps and hence move half as far.

Thank you so much gr5! The fan cable was indeed connected to the Z 8/16 microsteps jumper. I also needed to do redo the firmware update to Ultimaker 2+ and then perform a factory reset from Advanced's menu on the Ultimaker.

I remember when I was reassembly the cables that I wasn't sure which jumper the fan cable should connect. I guess, I just messed that up horribly. Anyway, thank you for the expert advice.

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