After recently acquiring a CW Devastator (thanks Optimus Puto), I decided something had to be done about Mixmaster's vehicle and foot modes.
Luckily I have the magic of 3D printing at my command.
First of all, this is not my design. I tip my hat to manfredvr on Thingiverse
http://www.thingiverse.com/thing:1730753
As an added bonus, I can sell these thanks to the license manfredvr attached to it.
It took about 8 hours to print, and then about a day (on and off) to assemble and fit using a hobby knife and some Kraggle.
Main mistake: I shouldn't have printed on a raft. Next printing will be much smoother.
It should be easily removable, but the slightly remaining layer of raft plastic makes it REALLY tight. I think I'll need a screwdriver to pry it off.
Also, the sides of the cab do slightly hinder arm movement outwards when the arms are pointed forward, but I can live with that. The weight of the add-on also makes Mixmaster back-heavy, but then I had that problem from the get-go with his loose hips.
There's the ability to swap out the cab's roof between a solid square for vehicle mode, and a roof with cutout for foot mode. Since the cutout works for robot mode too, I just decided to glue it in place and live with the slightly odd vehicle roof. Oh well, better than before.
Printed in gray ABS plastic, 0.2mm layers with 5% 3D honeycomb in-fill, raft layer and pillar supports, 4 perimeters, 4 solid rectilinear top/bottom in-fill layers. ~8 hours printing the batch all at once.
It isn't painted, I'll get around to that at a later time.
But here's what you really came for: the pictures!
Robot mode, side view.
Robot mode, front view.
Robot mode, back view.
Vehicle mode, front-side view.
Leg mode with ankle pivot, front-side view.
Leg mode, front-side view.
Comments and questions are welcome.