Jump to content
Ultimaker Community of 3D Printing Experts
johnhsu

UMO disalignment

Recommended Posts

This is super common with the UMO.  Did you assemble it yourself?  Did you get some spare set screws?  Mine came with black set screws in each pulley but it also came with a second set of set screws with a sharper point that are better.  I still haven't used the better ones - instead I just tightened the hell out of all the pulley set screws.  There are 12 of them but you appear to be having issues with just the X axis so tighten those 6 screws (not four!  six!).  Especially the one on the motor.

 

If you don't believe this is the problem I can prove it by having you mark the pulley and the shaft with a sharpie and then print something and then check again and you will see the pulleys are slipping on the shaft.

 

Tighten it so tight you are scared you are going to break something.  Quite tight.

 

Share this post


Link to post
Share on other sites

Say @gr5, speaking of the UMO.  Any thought of you or your partners putting together a heated bed kit, now that Ultimaker no longer makes one?

 

I know there are options out of Asia, but frankly, so hit and miss, perhaps others like me would prefer to pay a premium and get something trustworthy.

 

Thoughts?

John

Share this post


Link to post
Share on other sites

Yes

I find the screw need to be tightened 

i upgraded to cura 3.5

 

and now have another issue

 

the print head always z axis higher then print bed about 10 mm 

and it print on the air....

 

please help

 

A0DFEFB7-F5AF-4322-9200-374B38958BDA.jpeg

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!