Filament guide for Sovol3D SV04 and other 20mm x 20mm frames

I loved the Kobra version of this. It's very simple, snaps right on and fits snugly, so I remixed it for my SV04 (or any other 20x20mm frame). 

Recommend print in PETG just to avoid snapping when putting on the frame, although it might work fine with PLA too, as long as you print on its side as oriented in the file to gain layer strength.

Print 2 instances of the guide for IDEX machines. 

Standard print settings should be fine, like 0.2mm layer height and 10% infill.