Jump to content
RazSchweitzer

X Y axis are not perpendicular

Recommended Posts

Posted · X Y axis are not perpendicular

Hi,

I have a new UM2, about a month old, and finally I managed to calibrate it well enough that I get really nice prints.

The problem is that the X and Y axis are not perfectly perpendicular to one another.

Instead of a square I get Parallelogram shaped parts. it's very light so it's hard to see, but when you put it in a CNC frame it won't fit.

Here you can see that the 2 parts perfectly fit when they are orientated the same as they were printed.

Both X axis are in the same direction and the Y.

2.thumb.jpg.bbbb941feef7d3cf131ea2475777463f.jpg

Here you can see the perpendicularity problem if I rotate one of the parts 90 degrees.

1.thumb.jpg.1ca3476f30e23d863a982955179fcdfc.jpg

So I don't have 90 degrees and I get parts that are like this:

parallel.gif

What can I do?

Please help.

2.thumb.jpg.bbbb941feef7d3cf131ea2475777463f.jpg

1.thumb.jpg.1ca3476f30e23d863a982955179fcdfc.jpg

Share this post


Link to post
Share on other sites
Posted · X Y axis are not perpendicular

I usually square things up by doing the following:

 

  • Move the head to the front center, all the way towards you
  • Look at the distance between the right sliding block and the closest pulley, compare this distance to the left one.
  • If they do not match, loosen the pulleys on one side so that that sliding block can be moved without affecting the other.
  • Adjust the distance so that it matches the other block.
  • Re-tighten the set screws, and tighten them very very well
  • Repeat if necessary and then move on to the other sliding blocks

 

  • Like 1

Share this post


Link to post
Share on other sites
Posted · X Y axis are not perpendicular

Ultimaker have a stl that you can print to use to square everything.

You loosen all the pulleys, clip on the aligners then tighten the pulleys.

There is one on youmagine here

  • Like 1

Share this post


Link to post
Share on other sites
Posted · X Y axis are not perpendicular

What I don't like about those tools is that they're like USB ports. No matter which way you turn them, one screw is always out of reach. That's why I like doing it by eye. Then again, I have a few years of experience so that helps I guess.

Share this post


Link to post
Share on other sites
Posted · X Y axis are not perpendicular

I found that if they are all loose you can rotate them so the screws face the same way. But yeah, not the easiest to get to.

Share this post


Link to post
Share on other sites
Posted · X Y axis are not perpendicular

raz - please pick the "best reply" and mark it as so.

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

×
×
  • Create New...

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!