2.85 mm conversion for R1+ ?

Many moons ago, I upgraded an R1+ to the E3Dv6 hot end. A pretty straight-forward project with a successful result.

I have too much 2.85 mm to ditch the one printer that uses it, but I'd like to have an affordable direct-drive extruder that uses that size of filament.

My searches have been fruitless in finding anyone who has converted an R1+ to use the larger filament. It seems that with all the carriage print options and drive mechanism options and E3Dv6 hot ends of that size, one could feed 2.85 mm filament in this machine.

Has anyone seen such a project on the 'net?

 

Thanks for the link. It appears to be a parts list for someone who desires to change from a bowden tube extruder to a direct drive extruder and vice versa. It doesn't appear to have any relevance to converting a Robo3D R1+ from 1.75 mm to 2.85 mm feed capability, which is my goal.

 

I may be mistaken, but aren't there also user-printable carriage assemblies? This would allow one to leave a carriage assembly intact, duplicated for the 2.85 mm filament. It would be great to be able to flip the printer back to 1.75 mm once the stock of fat stuff is exhausted.

I was hoping for a near-turnkey web site to make this an easy build.

I was given a link by MatterHackers for a conversion of a Prusa MK2 (or maybe MK3) from 1.75 mm filament to 2.85 mm filament, but it's gone stagnant from 2015, I believe, and the creator hasn't responded to my queries last month. That would be an ideal situation, as the not-turnkey link involved a swappable carriage assembly.