This is my latest VEX robotics chassis creation, continuing on the theme of my previous designs. It is a chassis for a four motored, four mecanum wheeled, programmable robot using VEX EDR components.
Extendable by attaching to the front and back bumpers, or the micro-controller's mounting points.
I would only suggest printing the sleeker, more compact version two (purple in photos). Version one (black in photos) is only included for insight into my design process.
While this chassis will accept either 3-wire or 2-wire EDR motors, it is NOT designed to accommodate motors with Integrated Encoder Modules. I figured the likelihood that someone would want mecanum wheels with integrated encoders was low; I hope I'm not wrong.
Attach the motors to the inside of the chassis using a couple of standard motor mount screws each.
A lock collar in each of the slots by the motors will hold the square shafts to the chassis. A Teflon washer between the chassis and each wheel is probably a good idea to reduce friction. A lock collar on the outside of each wheel will hold them on.
The battery is intended to be attached to the bottom using twist ties.
It's a little difficult to position and hold a nut on the underside of the micro-controller mount points. My apologies. I was able to use a wrench from the side.