So MCK-Y the Mouse Droid was torn apart, and of course when a cat sees a mouse, he wants to help out.
|Cat Catching Lego Mouse Droid.|
|MCK-Y's LED Light Board|
I thought of foaming the tires, and this is what happened.
|Lego Tires Imploded After Spray Foam|
You'll notice that the tires and wheels are normal Lego parts. They're attached to 3D printed hubs that are on the normal car axles. The front wheels are attached with normal Lego Technic pins, though the rear wheels got #4 screws through the middle of the hubs to press them into their spot (at Brickcon they fell off several times, hopefully this will help).
|Front Lego Wheels Pinned to MCK-Y's Hub|
|Lego Mouse Droid Rear Hub, Tire & Axle|
|MSE-6 Lego Droid Body and Chassis|