Answered Is this filament good ?

Yes.



I have for years (since 2013) used the cheapest PLA/ABS I could get and never once had an issue with "bad" filament. Now, mind you, it all needs a little tweaking of settings to get it to its best quality, but it all worked fine.

Specialty filaments are another matter entirely. I have tried the cheaper versions of those and ... no more. If you want to use a specialty filament (wood, metal like steel/iron/etc or something else not just "PLA" or "ABS") a nylon filament or PolyCarbonate -- get a brand name. You will not be disappointed as the brand names ones print very well. Nylon is too much of a mixed bag since too many "generic" places try to sell you generic "nylon" and there is no such thing. Every nylon is a blend of some fundamental type of nylon and they all vary on print settings so if you get a generic nylon you have no real idea what the print settings are supposed to be (and most work like junk IMHO). Good nylon is a terrific filament. Same is largely true for PC since there are a number of variant materials, but good PC will print very nicely.

So on the special ones spend a little extra. We use generic PLA all the time for test models and pre-production/throwaway models to make sure everything is correct and then if we need we use a specialty one for the final print.

 

I have printed it on the R1 series, I have not yet tried on the C2 BUT someone else has and apparently got it to work. There should be a thread on that somewhere over here: http://community.robo3d.com/index.php?forums/filament.74/

My advice for flexible filaments is not to get something too flexible unless you need soft floppy rubber parts. NinjaFlex is "floppy" Cheeta (formerly called "semiflex") is flexible, but not floppy.

 

and by "flexible" I mean that with Cheeta/SemiFlex you can still easily bend the parts ... they just have more natural support. More like a firm rubber.