UNIBITE

I got an Email from Robot Wars a few weeks ago asking me if I wanted to compete. I had just gotten back from Battle Bots with my last robot Sublime, he was pretty beat up and was 150 pounds to light. So I decided to build a new heavyweight with the 1.5 weeks I had before the robot had to ship. Lets just say 1.5 weeks full of 12 hour days working on the robot have made me glad the robot is done.

Here is a picture of the fully finished UNIBITE, minus a few stickers and some casters. That is my new multiplex radio sitting next to it (I love that thing!) Here is the happy (and tired) builder with his creation.

Here is a picture of the back end, the "dead" back panel is a peice of "dead end" sign I was given at Battle Bots from one of the Team U-FO guys (thanks!) You can also see the spring loaded door to my master power switch, it is at the lower left corner of the picture to the left. Here is a picture of it open, as well as my two "Removable Links" I just used regular anderson 30 amp powerpoles. I used two so I can switch the saw and the drive on and off seperatly.

Here is a top view of all the internals. The robot uses two Hawker battery's for the four drive motors, and two packs of Panisonic 3000 NMH cells for the saw. I used a total of 6 EV's in this robot, 4 for the drive and two for the weapon. I did a 15:1 reduction to the 12" wheels, I decided I wanted to go for a little more pushing power and less speed with this robot. I used 16 pitch gears and #35 chain to do the reduction.

Here is an overhead view of one of the drives, after my machine shop at school closed down for he summer I had to find another motor mount for the EV motors. I found the PERFECT ones in the McMaster catalog. They are made to clamp down pipes, the first time I put one on an EV I poped a magnet out of place after tightning it down to tight, they are snug! With the two clamps per motor I can jump up and down od the motor and mounts with no movement. I'm running the two EV motors at 24V with a Victor on each motor (better safe than sorry) Here is a picture of one of my tires, they are 12" go-kart tires. They where cheap, easy to mount, and came with a 60 tooth sprocket on them; I like em'!

Here is a shot of the big robot next to his bigger box. The robot is now sitting in this box, and will be on his way to london soon! Here is one more shot of the robot, this time with his covers off (AHH!) Some specs are 4EVs for drive geared down 15:1 with 12" tires. he has a 29" saw blade the weighs 35 pounds with the #50 sprocket on it. Two EV motors spin the blade through a 6:1 reduction, giving the blade a top speed of just under 1000 rpms, it saws through 2x4's really nice! Well, that is pretty much it for this robot, I wish I could have done a step by step report, but I just didn't have time;(