CARBONX Carbon Fiber ABS 3D Printing Filament, 1.75mm, 500G

This filament is incredible and... difficult. The carbon fiber reduces how much it distorts, but it's highly contingent on a lot of things. I have yet to get the settings dialed in to make reliable prints, but the "failures" (I prefer the term Proofs) show incredible promise.It's expensive stuff. It hurts printing prototypes instead of end-products, but the end products are insanely worthwhile.If you have the ability to, do yourself a favor and put this in an enclosure in a shed outside. The fumes it produces aren't safe. It also requires a bit higher temps, so a fire suppression system would be wise.Does it sound dangerous? Well, it is, just like your toaster, car or bathtub if used irresponsibly. Play it safe though and you'll have a really good time.Pro tip: save a paycheck and buy an Olsson ruby tip nozzle. The carbon fibers will chew up brass pretty quickly. Hardened steel is ok, but the Olsson will quite simply never wear out. Caveat: don't let it crash into your table. Glass beds will scratch or shatter. Metal beds will break the nozzle. Level your bed with care.(Bonus: if you have a ruby nozzle, you can use carbon fiber filaments as a cleaner to scour well-used tips to keep them clean on the inside)

I'm using this for key pieces on a voron 0.1 printer build. Absolutely amazing stuff. Light and rigid, but because of that when it fails it's sudden. Be mindful of the fumes, they seem much worse than the overture abs I have. Ventilation!! And/or proper respirator and filter.Getting close to perfect with 45-50c chamber, 105c bed on PEX, 80mm/s, 0.4 nozzle, 0.2 layers.

July 2020 edit: the new spools are larger; the problem no longer occursDon't get it all tangled, and make sure your printhead is warm enough. Keep it on the warm side (240-250) for good adhesion.To 3DXTech: My biggest piece of feedback is to (please?) make the roll a bit taller or wider, since the material is pretty springy and jumped off the spool as soon as we unpackaged it. I think it would be a little easier to manage if the roll were taller or wider.To other buyers: be careful not to get it all tangled when you unpackage it; the material might unwind a little.

Large inconsistancy in weight between rolls. 8% less on second roll caused a failed 27hour print and wasted 33$ rolls are too.small to.properly hold filament. Comes off and gets tangled. Why go cheap on expensive materials.

The filament is so brittle and weak, it breaks when the print head moves as material is pulled off the spool. I can't print anything because of this, but suspect the printed part is just as brittle and weak.