This was a great reply, thanks gR5!
I agree the UM2 does look great, if I had the extra money I would get it. Given their functionality is very similar, I will probably go for the Ultimaker+ and upgrade to the next Ultimaker model (UM3) in a few years when its released.
UMO+ is kit only. UM2 is assembled only.
Some people think UM2 is more beautiful. Much more beautiful.
UMO seems to get features sooner than the UM2. For example you can get dual extrusion on UMO now, UM2 is "promised" 2015Q1.
UM2 has slightly larger build volume.
They both have excellent print quality. Now that UMO has heated, metal bed that is no longer the main difference. The only remaining difference is the homing. The homing for UM2 is better. It homes at the bottom with the bed all the way down. UMO homes all the way up which means any filament leaking out of the nozzle gets squished against the glass plate. It's really not a big deal. The lights on the UM2 are also nice - they light up the print area so well that people use it as a light box. I kind of mini photo studio.
So if you aren't afraid to assemble the thing and you are willing to spend 20 hours doing it and you don't need the "prettiest printer" possible that looks good in your immaculate fancy home. Then go for the UMO+.
The other advantage of the UMO is that nozzles are only $5 on ebay and you can get different nozzle hole diameters. Larger diameter for woodfill filament (it gets clogged easily in .4mm nozzle) and also for large prints you want to print fast.
Smaller diameter for very tiny, detailed work.
UM2 has the nozzle/heat chamber as one piece so you can't by third party replacements. Yet (I'm sure that will change).
edit: Forgot to mention that UM2 is quieter also.
Link to post
Share on other sites