Jump to content
Ultimaker Community of 3D Printing Experts
reibuehl

"Z Switch broken" Error Message

Recommended Posts

Did you look at the z switch? Often something falls down into that hole. There is a screw sticking out the bottom of your bed that sticks down into the hole where the z switch is. It's probably stuck.

Anyway you can turn of power and test the resistance of the z switch with the switch pushed and not pushed.

 

Share this post


Link to post
Share on other sites

rob - I recommend you take the bottom cover off - you have to raise the bed with power off by lifting firmly to access the 2 screws under the bed that let you take the bottom cover off. It's all quite easy to do.

Then hook up a multimeter to the z switch under your printer and measure that it is open and then push the lever and make sure it is shorted (switch is "on").

 

Share this post


Link to post
Share on other sites

@reibuehl - Would you consider downgrading your firmware to 14.12? You can get it by loading Cura from here:

http://software.ultimaker.com/old/

Install Cura 14.12 (it will not affect your other copies of Cura - Cura is strange in that you can have many versions installed at the same time) then connect computer to printer through USB cable and the Cura wizard should hopefully prompt you to load the correct firmware (UM2 firmware).

I have this theory (that may be wrong) and if I'm right, your limit switch problems (all of you possibly) may go away in version 14.12 or older.

 

Share this post


Link to post
Share on other sites

I just learned that version 14.09 doesn't check the X,Y endstop switches. lol. So certainly you won't get the error there.

I also learned the XY error message has been removed from version 15.02 (and 15.02RC2 and 15.02.1 but message is in 15.02RC1). So you might want to upgrade your firmware to 15.02. The Z message is still there.

I learned just now from tech support that usually this error means you have a loose pulley and the X,Y or Z axis is drifting towards the 0 position (left or front depending on axis) and eventually the endstop switch gets hit. So the error usually means "loose pulley".

If you have a loose pulley it's more obvious by looking at the part because each layer is moved over a bit (or a lot).

If you are printing a part that is the full 230mm wide for example you also could get this error sporadically as the head comes within .2mm of hitting the switch while printing. So removing this test might be best.

 

Share this post


Link to post
Share on other sites

Hello,

I received an Ultiamker2 last week. The printer has printed 2 parts and is giving the same error.

How can I fix it?

If the firmware is the problem then I suggest Ultimaker should release a firmware update ASAP as this is unacceptable.

 

Share this post


Link to post
Share on other sites

It's fixed in 15.02.1 and newer. It's part of cura:

http://software.ultimaker.com/

Install cura 15.02.1, make sure you select ultimaker2 for your "machine", connect a USB cable between your printer and your computer and then go to "machine" "install default firmware". Again, when you click "machine" make sure the correct printer type is chosen.

 

Share this post


Link to post
Share on other sites

I had the same issues just after converting Z-axis stepper motor from 1/8th step to 1/16th steps. In fact this is a SOFTWARE problem into the firmware.

In order to solve this, I have checked my Z HOME offset (M206 command in pronterface) and it was tooooo huge ! So the printer did not know where was the Z when trying to home and defined so that the endstop was stuck or broken.

The procedure I did was to reset the Z home offset (M206 Z0) followed by a EEPROM save (M500). Then I have done the buildplate procedure and everything went fine.

Is your problem solved this way ?

Regards,

Aurelien

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

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 19 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 18 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!