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

print head bashing repeatedly when traveling to home position - SOLVED

Recommended Posts

Lately my Ultimaker 2 print head has started behaving oddly when starting or finishing a print. When it tries to slide over to the home position, it starts bashing against some sort of physical or software stop and makes a really loud and annoying noise very similar to machine gun fire (*bam bam bam bam bam bam bam*). It probably does this repeated hitting for 2-4 seconds before it stops and then just carries on with the job. I can't imagine this is good for the printer - has anyone else experienced this?


Share this post

Link to post
Share on other sites

It won't damage your printer but it turns your repeatability to hell. Definitely fix this.

The problem, as Nallath says, is you aren't triggering one of the endstops. With power off push the head around and into that corner (one axis at a time) and listen for the faint click when the endstop is triggered. See if one of the axes isn't triggering. It could be one of your thin metal rods that pass through the head isn't sticking out far enough on the side to hit the endstop. It could be your endstop moved. It could be the fan shroud is no longer symmetrical and that is hitting. It could be lots of minor mechanical things.

If you can't figure out what changed you could just bend the metal arm of the endstop so that it gets triggered sooner.


Share this post

Link to post
Share on other sites

Thanks for the quick answers. One of the metal endstop triggers was bent out of the way. This seems quite odd, since this area has never been handled/adjusted/disassembled, etc. Seems like somehow it happened by itself. Bent the piece of metal back to (almost) straight, and now the microswitch is triggering properly.

I noticed my motors now sound a bit different when moving the print head. I don't see any functional issues in the print, but they just sound different when being actuated. Could the endstop issue have caused any permanent damage?


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

    • Print Core CC | Red for Ruby
      Q: For some users, abrasive materials may be a new subject matter. Can you explain what it is that makes a material abrasive when you are not sure which print core to use?
      A: Materials which are hard in a solid piece (like metals, ceramics and carbon fibers) will generally also wear down the nozzle. In general one should assume...
      • 1 reply
    • "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!