Reached My Wits End!!!  

Reached My Wits End!!!

Hey All,

I have a MK2 MM upgrade unit that had been working fine a few months ago (it is less than a year old). I hadn't used it in a while and recently tried to print some parts and am not able to get anything working!

I had been printing on my other MK2 single material printer with no roblem

No matter what I do, I cannot get the material to extrude during parts printing. I have re-flashed the firmware, and run all the calibrations with no issues. I perform a first layer calibration with material extruding fine, but when I go to print a part, nothing works.

I either see nothing extruding from the nozzle, or if I do get some extrusion, it won't stick (even though I can succesfully run the first layer cal.)

I am using Prusa Control for this printer, so there is very little for me to change. I just tried printing Benchy with no luck.

I have emailed Prusa support, but they seem to take FOREVER to respond to emails. I would really appreciate some insight into what my problem is!

Thanks in advance,

Ed Siegal