Reused radus excellent y-corners from his Heavy Base i3, to be used on an "original" sized Prusa i3 Y frame. Current .scad and .stl is for 10mm smoothrods & 10mm threaded rods, but its easy to modify in the provided .scad My actual modification is only that i have closed the bottom gap, removed the support for that gap & made the bottom hole teardrop shaped for the easiest print possible. Parts are REALLY EASY to PRINT & really solid. Print with 20-30% infill so you wont wreck em if screwing them on to tight. & Dont thank me, thanks goes to radus! (I will add images when i get them mounted this weekend) Depending if you feel comfortable with your printer being trusted, print 4 at once by duplicating them in your slicer software. Else you can make one at a time. Printing all 4 at once with standard slic3r settings takes about 3-4 hours (i run with pretty low traveling speed 70mm/s) 30% infill for toughness 0.3mm layers works just fine.