I bought used Ender 5 pro just to mod it to coreXY, but after seek some avaiable design I still want to mod as my like:
Using 5mm bore idler as stronger and found cheaper than 3mm one in my country
Using my odd 9,6mm carbon rods on X and Y as I already buy many / bulk with cheap price also
I like the gantry in the top so can get higher Z and maybe slightly X and Y, coz I want to install bigger bed 310mm x 310mm hopefully can get 300mm x 300mm print area
Bed maybe on other design
Im using 10mm printed bearing for Y but the holder is designed for 9,6 one, may be too tight for 10mm you can just modify it slightly if want
Edit: 1st design after I measure cant achieve 300mm on X, maybe same as stock 220mm only.. will modify and post next version with old one still here for one that enough with 220mm on X
New design: XYfrontR2 and XYmotorR2, you need to mirror it on Y axis to print Left version
The author remixed this model.
Using bigger 5mm bore melted idler to corner