Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  

Z-lead nut doesn't fit

Recommended Posts

So when I opened my UMO+ kit the Z-lead nut was already on the Z-lead screw rod (z-axis). It was really stuck on there (almost like it was seized in place) but I managed to get it off so I could attach it to the heated bed plate.

However, even after greasing the Z axis screw the nut just won't move up and down it smoothly, making the aligning of the linear bearings on the heated bed impossible (and, I imagine making it very difficult for the machine to move the bed up and down).

Is there anything I can do other than ask Ultimaker for a new Z-lead nut? I've raised a ticket but I have no idea how long it's going to take, this printer has already caused me enough problems, I just want to get it working.


Share this post

Link to post
Share on other sites

I have been in a similar situation. Eventually it will work itself out.

I might not do anything until UM decides what they think needs to be done. Anything drastic might complicate the trouble shooting process.

If I were going to try something, it might be soaking the nut in some PB Blaster and wiping down the rod as well. Then clean em off and put more grease on. The nut should turn very easily. Mine turns so easily that the bed will sometimes slide down on its own when the motor powers off.

Share this post

Link to post
Share on other sites

I don't use the grease UM is providing with the UM2. I prefer a slightly thinner fluid (actually a high-quality oil for bicycle chains) and it runs very smoothly. Maybe you have to oil or grease it, clean it and oil/grease it again?


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
Sign in to follow this  

  • Our picks

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies

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!