This is a bearing mount for y-axis. I use this in my Prusa I3 custom.
I designed this part so do you won't need support, it prints very well, it's sturdier than most bearing holders i have used before.
I also provide the Free CAD files so you can customize as you wish.
Please feel free to use and modify this part as you wish. Please upload your photos if you print this and let me know if you discover something wrong.