Help with calibrating Ultimaker 3

[JJ3D 1]

 

I have been trying to manually calibrate my UM3 for a week now, and it either starts scraping the build plate like sandpaper or the nozzle is too high, and the layers don’t stick. I’m desperate. I’ve read the instructions five times, and what surprised me is that there are 3 screws underneath the platform, but the instructions only mention working with the wheel and the two side screws!

[Enigma_M4 123]

Hi,

I suggest you follow these instructions:

https://support.ultimaker.com/s/article/1667337928740

At first you should check for and restore the factory position.

From factory position, you should not need to turn the back-middle screw, as this position is levelled with the wheel, and only turn the front screws.

Regards

[fbrc8-erin 302]

I agree with @Enigma_M4. As long as you've never loosened or tightened the back screw, you should be able to position with the button on the front and the two side screws. If you have either massively loosened or massively tightened the back screw in the past, go ahead and bring it to about mid tension for a starting point and then try the process again.