Large Robot Examples

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Large Robot Examples

Large robots can provide a big bang and a lot of excitement, but they are usually a lot more expensive and there are other hassles around transporting and handling them. I've built up to 220 pound robots and have decided that I want to stick with 60 pounds or less. The smaller robots are pretty much as much fun as the big ones and are a lot easier to work with.

Basic Lightweight (60 pound) Example

Cost	Item
$100.00	Motors + Wheels
$175.00	Batteries
$150.00	Radio Receiver
$350.00	Speed controllers
$200.00	Wheels, Hubs, Pillow Blocks
$100.00	Misc...
$60.00	Chassis + Materials
$1135.00	Grand Total

This cost is pretty accurate. It was a little bit more than this because I had to buy the battery charger and 12 volt power supply. I should have spent a little more on electronics since the speed controller burned out in it's 4th fight.

This early version of Death by Monkeys was a very simple robot. It was my first attempt at building a robot so I kept close to the KISS principal. This robot was very fast and despite it's shoddy construction, it was surprisingly competitive at Battlebots. I don't have any pictures of the first version of this robot, the version pictured has upgraded the electronics. Later versions had upgraded motors and batteries and even added a lifting actuator for the spikes.

Advanced Hobbyweight Robot
The basic components of this robot aren't really all that different from the example above. The big difference is the addition of an active weapon. The cost of this robot isn't really much different than the one above, the big difference is in the amount of time and planning that go into building it.

Cost	Item
$40.00	Motors + Wheels
$75.00	Batteries
$75.00	Radio Receiver
$300.00	Speed controllers
$100.00	Misc...
$60.00	Chassis + Materials
$50.00	Small Linear actuator
*$700.00	Grand Total

*Rob Purdy built this robot so I'm not really sure how much it cost. I believe he used the same motor setup as Last Minute Monkey.

This version of "Scratch" has a very powerful clamp driven by a linear actuator that I've used in much larger 60 pound robots. This robot was built by Rob Purdy.

Advanced Hobbyweight Robot

Cost	Item
$40.00	Motors + Wheels
$75.00	Batteries
$75.00	Radio Receiver
$450.00	Speed controllers
$100.00	Misc...
$60.00	Chassis + Materials
$50.00	Small Linear actuator
*$850.00	Grand Total

Myq of the Palmer Secondary School in Richmond, BC literally has a fleet of 12 pound robots. Mike tends to make most of his own parts so he can keep the costs down.

Mustang was one Myq's of his first attempts at a robot with an active weapon. The mini-EV driven drum weapon was very effective.