Bcn3d sigma, ultimaker 2+ extended, zortrax m200, mankati full scale xt and one or two others. We spent 90 days looking through specs. The fusion is the 12th printer to be bought or built here including prusas, flash forge, Rostock. Right now I’m debating the markforged or another f400.
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I got a proposal from chip and the printer is 8 weeks out. Ouch. Might need to consider a different printer.
It’s worth the wait… just my two cents. 
Not sure, actually. I haven’t discussed this with Fusion3 at all, but the metal chassis does have mount points for a second extruder. I’m sure that is in their future plans. Personally, I can do every I need with a single extruder. The breakaway support works really well.
11 months later
Are you still liking the F400? Also, are the nozzles changeable?
We like all of our F400’s!
It uses an E3D V6 (Volcano on the HFR) so you can swap with OEM or Aftermarket nozzles yes. We swap nozzles a few times a week on both models depending on customer orders.
Does it print well at 100mm/s as they advertise or is there some ringing when you get to those speeds? I have an Ultimaker 3 now but looking for something faster for single filament prints.
Fusion3 uses swappable print heads and hardened steel nozzles (not brass). They don’t replace nozzles as that’s unreliable (need to heat to full operating temps (+240*C) with proper equipment to ensure nozzles are properly seated.
260c No special equipment. 2 crescent wrenches will work. Proper nozzle seating is a 101 level task and requires only working eyeballs.
That’s what I was hoping. I know their manual discourages it, but I figured with the v6 that it should be possible.