@jwoody18 Jeff: I love the ingenuity of this, but it does look like something you do because you simply must see if you can get it to work, rather than addressing an issue. I’m sure any of us can change a bit manually faster than this changer does. I’m not saying that I wouldn’t build one if I could, though.
I’m assuming that this would only work when using a software-controlled spindle, yes? The spindle is turning when it first grabs the bit, then stops when the collet nut engages with the nut holder, then starts while the wrench lines up with the flats on the spindle, then stops again to tighten the collect. That could not work with my Makita router, for example.