Don't know. But I do know that Steve now has 4 UM2 printers in his office (he got 2 more). All covered with yellow tape. I didn't notice the feeders but the hot ends look normal/standard. I suspect there are no changes other than maybe newer isolator.
Interesting stuff, so basically the quality of the printer is more important than the fillament supplier.
The report says both test machines were 'refurbished' ... did they both get a new feeder & hotend?
My gut feeling says this confirmes what we already knew.... replacing the feeder is the first thing to do on an UM2.
Is UM still using all 3 suppliers?
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