Ender 3 Pro filament guide

Part remix and part designed at printXD, the benefits of this is that you don't need any bearings or external hardware.
The print settings and materials are entirely up to you and what your preference is. I advise that you orient the prints in the position that requires the least amount of support. Like wise you should orient the dove tailed bracket so the the dove tail is on the bed and the pillars are facing upwards for the best quality.

Printed on my Ender 3 Pro in PETG.

Thanks to AlexanderGi so the dove tail bracket and the main arm.