Lulzbot Taz 5 Speed Idler arm & Latch for Greg Wade extruders

I have thick fingers, so switching filament quickly can be difficult with the standard idler arm and latch.

I also found that the idler arm wore a lot at the point where the filament first came through, so I made it into a funnel shape to improve the life of the idler arm. I also made the point where the filament went through a funnel shape to reduce wear on the idler arm. The funnel in the arm also helps change filament, guiding stiff 2.85 filament into the hot end.
I also put a tab on t