Jump to content
Ultimaker Community of 3D Printing Experts
stewe

Ultimaker Original - temperature drops of 30°C!

Recommended Posts

Hello everybody. I have problems with my Ultimaker Original. It started 3 months ago. Temperature readings were inaccurate as it was too cold or too hot. PLA strated making bubbles. Ok, I though I need new temp sensor. Oredered 2 of them to prevent off times in future.

So I replaced temperature sensor and started test print. Heated up to 220/220°C, but as soon as it started homing, the temperature drop to 190°C and printer continued with heating to 220°C. It reached 220°C again, but real temperature was in that moment about 250°C.

I thought it was a bad temperature amplifier. So I changed the amplifier board. Same story. Reached print temperature of the test print, but as soon as it was homing (reaching 0;0;0), temp dropped to 189°C...

Is there anybody with similar issue? Or does somebody have clue what is wrong? Thanks for every hint and tip!

Share this post


Link to post
Share on other sites

I would check if there is not a half loose wire in the temperature sensor or to the connection to the board. If I am not mistaken if it can not read the amplifier it keeps the old value. Since you say when homing it changes that makes me think it is a half loose connection.

Not very scientific advise...

Wiggle a bit with the cables to see if the temperature readout remains the same.

Share this post


Link to post
Share on other sites

I recently upgraded my UMO to the Heated Bed Plate and while I had everything apart, I discovered a lot of things had come loose over the years.

Some of the electronic terminals needed a half twist to be snug again.

I also had the two back cover pieces to the rods come apart...the nut was still on the thread but it wasn't a lot of fun to put back together!

Good luck!

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

  • 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!