Wanhao - Maker Select - i3 Feet Cut

I used the [Aero3D feet](https://www.thingiverse.com/thing:1647031) on my MakerSelect v2 (they work fine even though it is not a plus model) but after adding the Gulfcoast Robotics Z-Brace, the bracket rests on the front feet instead of the frame.

This version of the feet is simply plane-cut to be less tall. The channel is the same height off of the table so it should work fine with the other feet.

Since I mostly just want to eliminate the annoying rubber feet that come with the Maker Sele