ERO3 when printing PETG

[isacat 0]

Hi, I want to print PETG on my UM2, settings 70 on the heatbed and 245 on the nozzle.

Want to start the fan after the first layer on 100%

After some time (I guess 30minutes) the printer stop with this error messages on the display

I think it's because the nozzle is cooling down to fast, but I am not sure.

Anybody who can help me out here?

[Labern 775]

Is this a UM2?

UM2's have a 25w heater that can cause this problem. That's why the UM2+ came out with a stronger heater. 35w i think.

Seeing that you are printing with PET i would suggest that you lower your fans as PET layer adhesion is not very good and having the fans on 100% is not normally the best idea.

[isacat 0]

I have indeed a UM2

What do suggest to print PETG on the UM2?

[Labern 775]

Try 20 to 50% fans

The lower the better. A cube I would print with no fans.

Edited February 21, 2017 by Guest