My beater/drum bot that just keeps on going. Strongest weapon setup so far.
About this creation
A front view of the bot, giving you an idea of the inner chassis and the size of everything. By far the most compact bot I've built.
Each side of the robot is supported by one of these "legs" that are double pinned in two different places to make sure that they stay in place. They often act as a wedge and feed the other bot into its weapon.
A series of liftarms are double pinned to strengthen the outer walls. This arrangement is the exact same on the inside of the chassis.
A whole bunch of liftarms support the back end as well. If this wasn't sturdy... well one hit would be crucial. All three sides of the chassis are relatively strong on the inside and out.
Small balloon tires are good for torque and traction, and help keep the bot flat on the ground. The drive motors aren't pictured, but they are two M motors with no gear reduction. The tires are mounted directly to the motors.
The wires are routed so that they are completely out of the way of the weapon. They go under the top of the chassis, and then up and through a 1x1 opening that leads directly to the receiver and the switch. It is impossible for the weapon to come in contact with the wires, unless the top panels are stripped off.
The weapon shaft and the motors are relatively low to the ground, so the blade can't be too big. I wanted to use the double pins for teeth on the blade, but they touch the ground. Still, with two weapon motors with NO gear reduction, this blade has loads of torque, and once the teeth bite into something, that blade just keeps spinning! Strongest weapon setup so far, just not as big of a weapon as I would have liked.
The LiPo battery has its own little chassis and is mounted and held down by double pins sticking out of technic bricks. Out of the way of the weapon of course.
Finally, everyone can get a just of what I'm talking about with the custom extension cord. The Lego end is attached to the stationary light gray connection point (behind the switch), and the LiPo battery is connected by that red JR connector (red and black wires)