The BAMboozler - 1lb Plastic Antweight

This is my second attempt at robot combat: The BAMboozler hits hard and can take a beating.

Strengths: 

• Massive weapon - It ended up being about 40% of our robot's total weight and at one point broke a competitor's robot in half. The slo-mo does not do it justice. This thing is terrifying when spun up.
• Covered wheels - Wheels falling off is one of the most common ways combat robots critically fail. We never had any issues with this.

Weaknesses:

• Self-Righting - This was our biggest problem in the arena. A self-righting arm may be difficult to add, but it is still possible.
  • UPDATE: The new backplate helps prevent the robot from flipping over as easily! Just use the Stabilizing Plate file instead of the Back Plate

Printing tips:

• ABS armor - I compete where only PLA, PETG, and ABS are allowed. Of the three, ABS is by far the most impact-resistant and tends to mash and ablate instead of shatter, making it incredibly effective as armor.
  • Print the armor upright to make the supports easier to remove.
• Weapon  - I used 20 wall perimeters and 80% infill when printing the weapon. If you decide to print with 100% infill, I suggest printing with only 1 wall as the print can split along the weak lines between perimeters.

Assembly:

• Wheels - The wheels and motor mounts fit N20 motors. After printing the wheels, coat the edges in a thin layer of rubber using a hot glue gun. This method is cheap and works great, but may require some tinkering to get a good result.
• Weapon - I used these motors for the weapon, and they just bolt into place. The motor support disk slides into place, but may require some filing to allow the blade to spin freely. On top of that, I just used the hardware that came with the motors to mount the printed blade. You will want to leave a small airgap between the blade and the support disk or you won't be able to spin up.