Combat Robotics

put drive motor in backside and I think body should not symmetric. when this engage with impact at that time load is not transfer to ground evenly.

I placed the drive motor in front side to make the center of mass a bit forward away from the wheel axis so it has no tendency to tilt upward while driving.

The symmetry I mention is along the plane of the axis of the wheel and weapon, so if you flip it over on either top or bottom, it can still work well. It's common to drum spinners like Minotaur and the likes.

Can you please explain more about the impact and load transfer? I'm a bit confused about it. Thanks.

A little alteration. The bot at the back is at 51kg with 8mm thick wheel guards, intended for standard middleweight category of 54kg.

The bot in front is at 44kg with 3mm thick wheel guards, intended for a 45kg event in Malaysia.

I prefer having wheel guards since I'm not a good driver yet. In my experience with my FW, having even thin wheel guards gave me fair enough protection because it took like 3-4 direct hits before it totally tore off instead of the wheels suffering from the start.

Grabcad model

Middle Weight Combat Robot

This is my design of a middleweight combat robot using full welded steel frame construction. I designed it to fit both my custom gear box with ampflow motors for a standard MW and the 350 watts e-bike motors. It can be fitted for a 45kg category by using the e-bike motors and changing the wheel g...

I uploaded the cad file of my MW design. Feel free to download for your reference. You can build it if you like.