New 2018 model, heavily optimized for ABS printing.
Model with custom .5mm "crisp support" available.
There are some other fan shrouds that do work with the Robo3D R1 and R1 Plus, however none of them did what I needed, which was to be able to mount not one, but two 40mm x 20mm turbofans.
So a new mount was needed and lo and behold, here it is. I must say its really efficient, It cools extremely hard, extremely quick so you may want to vary your fan speeds, for mine I use them at 75% and only do 100% power on extreme overhangs.
I hope you find this useful, cheers!
Print in ABS, PLA will warp and melt when exposed to the heat of the heating block and heated bed. Recommend covering the whole printer with a towel when printing ABS to avoid drafts and prevent cracks from uneven cooling.