@Brook_Drumm
hey Brook… thanks for the info… this guy is awesome https://www.youtube.com/watch?v=ZKfvSjoyQbI. Great job presenting your product 
Just finished buying my Printrbot Metal Plus with heated bed… can’t wait to get it!! MADE IN THE USA at the Central Valley… YEAH!
The only thing that sucks is: you dont have any black filament!! 
Thanks everyone for your help!! 
@Whosa_whatsis unlikely? I did it literary out of the box and am reliably printing even 15 micron on the U2 all the time.
Takes ages even at the high speeds the U2 is capable of but I rather have it print a day extra then spend half a day extra in sanding.
…I was just as spectical as none of all my previous printers was capable of anthing close to that. …as as reliable.