7-9-2017 - 45mm version added for Brutus + glass users. (I have not printed this one - it's beta until confirmed).
7-8-2017 - Updated screw holder. My geometry for the nut holder was a little skewed. It's still super tight--and I mean for it to be. Use a short M3 screw to pull it in.
Also printed and tested the V2 25mm skirt - it fits.
7-7-2017 - Added a beta version of the 25mm skirt by request, and fixed a problem with it in the -V2 version.
I wanted to use the Z Axis expansion mod, but the adjustable Z stop was such a great mod I didn't want to give it up. The existing screw holder is designed to lower to a switch that's riding on a part you'll either remove or cut off (the rear panel cover), so I extended it to the right and back. It's a very close fit with the X carriage, but should clear.
Only the skirt needs supports, and that's because of the overhang where the switch goes. If you print without, it will droop a little, but should still be fine. The slot in the skirt takes a captive nut from the Z switch. The NEMA plate was colliding with the skirt, so I chopped in one corner, probably a little more than needed.