jamado

I've already try that but the problem persists. Thanks for taking the time j.amado

Already done that and nothing got better , thanks for the reply j.amado

already done that and still happening the same thing. Thanks j.amado

It has probably between 500-700 hours, thanks for your reply j.amado

MATERIAL (PLA) STOPS FLOWING OUT AND IT GETS A CERTAIN FORM THAT DOESN' LET THE MATERIAL RETRACT TO BE CHANGED I HAVE TO GET THE BOWDEN TUBE OUT AND PULL IT FROM THE HOT SIDE END . ALREADY CLEANED THE HOT PART AND SAME PROBLEM OCCURS AFTER THAT. I DON' T KNOW WHAT OR WHERE THE PROBLEM IS OR WHAT TO CHANGE . PICTURE OF THE MATERIAL ENCLOSED.

Thanks for taking the time to reply, i'll find if I can get it delivered to my country.

Thanks I'll see if I can find the PLA spool you recommend. Thank you for taking the time to answer.

That was exactly the case, you were right. I bought an automatic vacuum (Ministar) and with 15 secs of heating time and 2psi seems to work fine. thanks for your reply it really helped.

I´m producing my dental models for making dental aligners on my UM2+ wich by the way works perfect. I use PLA anN infill of 25-30% but when trying to make the aliogners on the vacuum machine (2.5-3 BAR) they shrink. Should I increase the infill? or any other change in the process to avoid this ?

I used it and worked fine. Thanks for your help.

Thanks I tried and just needed to adjust temp to 215 , works quite well

Can I use 3mm PLA filament on my UM2+ ? Do I have to change any special setting if so ? Thanks

Thanks for the tips that i'll do. I'm uploading what i need printed to seek some advise.

That is really what I thougtht , i'll start a "trial and error"print to get there, but aprecise setting would be time saving. Thanks anyway