1. What is your opinion of the Robo 3D? Would you recommend?
My opinion is very high. I would definately recommend for its customer service (see below) and value.
2. How is there customer service?
Very high if you deal with there 1 on 1 meetings with their service techs. Its free to do but you need to schedule it about 1/2 to 1 day in advance. Don’t even bother using their 24 hour line. I have yet to find a simple enough problem for those guys to solve.
3. Pro/Cons?
Pros
Build Volume (its huge)
Value (its dirt cheap for its size)
Customer Service (they’ll teach you how to print and fix anything, as long as you do the 1on1 thing)
Auto bed leveling (paper test to get it close and then the digital dialing in makes a really nice first layer)
Cons
Not enclosed. Weird shape to build an enclosure for (So ya you can print abs. but it will be warped)
Matterslicer (Its garbage. Don’t bother. Just go straight to repetier or cura)
bed heats up unevenly (I usually let it heat for ~20 mins to get it normalized with a custom enclosure)
R0 has some major design flaws they fixed with the R1 (fan press fit instead of bolted, cheap bolts, etc. All fixed to their R1)
Also I know this is nit picky but ultimaker spoiled me with their detachable build plate.
4. First hand experience on print quality?
I’ve gotten my tolerance down to ±0.1 mm. The ultimater I use is down to ±0.01mm so an order of magnitude better. but visually they’re indistinguishable.
5. Good with Flex, wood, carbon fiber, etc?
Never tried these. Although the service tech I talk to regularly said he has had a lot of success with woodfill and showed me a print that looked very nice (from afar over skype for what thats worth)
6. Can you change/ replace the nozzle?
I’ve replaced once (under their customer service supervision) but never upgraded the nozzle. Although I’m almost positive you can as I have seen more than one how-to video on it. Also you can upgrade to duel extrusion supposedly. I’ve never tried cause I am making enough with the single head to make it to risky to take offline and take apart my printer.