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

Nozzle does not stop heating, UMO

Recommended Posts

Hi,

I have problems with my nozzle and the temperatur.

The nozzle heats up, but it does not stop heating. Last time I needed to replace the thermocouple as it was destroyed because of the extreme heat. Then I changed the thermocouple and I could print again. This morning I wanted to print again, but same problem, the nozzle heats up without limit.

At the ulticontroller there is no display about the actual nozzel temp it just shows 20 degrees, which can not be true.

There is no errror massage at the ulticontroller.

Could anyone please assist me to get this work again.

Kind regards

Clemens

 

 

Share this post


Link to post
Share on other sites

Did the thermocouple fall out? Check that first.

There are many things that can cause this so you need to isolate.

Measure the voltage coming from the top of the head. The voltage should represent the temperature "directly" like this:

0V=0C

5V=500C

200mv=20C

Then heat up the head so that it feels warmer (at least 30C) and measure the voltage again.

If the voltage is correct (voltage goes > 300mv) then the problem is in the cabling or underneath the UMO. If the voltage stays at 200mv then the problem is at the circuit board or the thermocouple. This is a first isolation step.

If you don't have a voltmeter, find someone who has one and have them show you how to use it (have them do the measurement!).

 

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

    • Taking Advantage of DfAM
      This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.
        • Like
      • 3 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!