This filament guide is designed by me for my Wanhao Duplicator I3 using Onshape as the 3D CAD system.
The part was printed in ABS and turned out fairly well allthough it did warp a bit during printing.
I would however believe that it would be a bit better in PLA since I dont have an enclosure for my printer when using ABS and therefore am challenged with sufficient temperature. The slicing and preparation for printing was done by Cura software which came with the Wanhao printer.
Guide mounted on printer frame:
Print preparation done with CURA: