qubd filament guide one two up 1 2

A filament guide for your one up two up 3d printer. slides onto the top rail. No need to remove bolt. Low profile, so it wont interfere with pulley system cable.
does interfere with gantry, you lose about 5mm of z height.
it has smoothed edges, allowing filament to slide over.
Snug fit, but can be slightly twisted to smooth feed from edge.
Is intended for rear feed filament setup.
sketchup file included!!!

UPDATE....
It seems the edges will wear over time and increase resistance o