Yet Another Filament Guide (MMU Bypass)

Yes, these are more filament guides of an established style where the guide snaps onto the Prusa filament holder.  What is special about this one is that I designed it specifically for use as an MMU bypass guide.

When I bypass my MMU, I slide it to one side and reinstall the original spool holder, with one side removed.  This works well, except I don't remove the PTFE tubing, instead just disconnecting the mmu end and feeding the filament through it manually.   The problem is that the coupler would often get pushed up into the spool and catch or tangle on the spool edges.  To work around this I needed a filament guide that could block the ptfe coupler, but all that I found had larger holes.  Most were also designed for the dual spool holder or mounted down low on the printer itself.  

My guide is designed as a half guide, with mirrored copied for left or right.  It has a small enough hole to stop the ptfe coupler and can be snapped on any section of the Prusa filament holder upright.   It also has a slot for a zip tie, which I am using, but is probably not needed.

In case anyone simply likes my design and wants to use it as a regular guide on the two spool holder, I have included a two spool version as well.