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

U2 Bed driven into the head

Recommended Posts

I'm not sure where to post this because it is not a cura issue, but my U2 just drove the bed into the print head and would not stop. I had to power the machine off. It occurred when after aborting a print the material was retracted a lot, and I went into the settings option move material. Then as I was moving the material towards the head the bed began to move. It kept going straight into the head. If the head was not there I think the bed would have come off the threaded rod. This is on the latest 13.12 firmware. Just a warning for everyone else. It appears the printer is fine, but it was scary.


Share this post

Link to post
Share on other sites

There is a "direction" signal that runs from the arduino to the stepper driver. If that pin has a cold solder joint it could move the Z axis in the opposite of intended direction occasionally. So it *could* be hardware.


Share this post

Link to post
Share on other sites

I think I was able to reproduce the problem. Sometimes when aborting a print, it will continue with a few more steps in the gcode before it cancels. If you are able to go into the menu and move material setting while the bed is moving down into the home position from the aborted print, the bed will start to move up and not stop. I can be hard to replicate depending on how fast your u2 aborts your prints


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!