Can UM3 use 1.75mm filament?

[Cobalt1 0]

Can you upgrade the UM3 to use 1.75mm filament or not yet?

I read here you can do this with the UM/UM2, but wondering about the UM3 specifically: https://ultimaker.com/en/community/20677-modding-ultimaker-original-plus-from-3mm-to-175mm-filament-tutorial

[Dim3nsioneer 557]

No, you can't (atm) as the cores are 2.85mm only. However, it's an Ultimaker so a community member will find a way, I'm sure...

Edited November 25, 2016 by Guest

[neotko 1,417]

Well if you believe what Adafruit says on his video

 

Minute 18:50secs

They say 'it works out of the box' with 1.75mm

Ofc they print a few small lines

So, can it print? Depends on what you define as 'print'. If you just want to extrude material, without control or snapping the filament due the extruder is designed for 2.85, then sure, even spaghetti can work 'out of the box'.

So for real prints? No atm. For adafruit boxes, maybe? No...

[mulawi 0]

Hi, I had same concerns but after loading 1.75 Filament and do some test print, it looks like it works very fine. Prints within the tolerances and no clocking or other issues so far. Didn‘t change anything on my UM2+

[gr5 2,170]

3dsolex has a conversion kit for the UM2.  Really you only need the teflon part.  If you can get a 1.75mm teflon part meant for UM2 from 3dsolex.com that will work better than the "out of the box" solution.  The UM2+ feeder works great with 1.75 but not the UM2 "regular" feeder.

 

I recommend you get the teflon part if you will be doing a lot of 1.75 as you can get a clog otherwise.  And retraction isn't quite as good without the teflon.