Goal number two is "battle worthy" construction. One of the keys to BioHazard's success is a bulletproof drive train that is completely housed in a square aluminum extruded tube.The one-piece extrusion (one each for the left and right drive trains), is precision CNC machined with mounting holes for all the sprockets, wheels, and motors. Each drive component is supported on both sides of the 3" x 3" square aluminum tubing to avoid "overhung" loads.
The tubing is made from 6061-T6 aluminum alloy. The feather and light weight robots have frame tubes with 1/4" wall thickness and the middle and heavy weights have tubing with 3/8" wall thickness. BioHazard, (a heavy weight robot), uses 1/4" tubing but we wanted to offer an even stronger drivetrain to stand up to your most destructive opponents.
The tubing is made from 6061-T6 aluminum alloy. The feather and light weight robots have frame tubes with 1/4" wall thickness and the middle and heavy weights have tubing with 3/8" wall thickness. BioHazard, (a heavy weight robot), uses 1/4" tubing but we wanted to offer an even stronger drivetrain to stand up to your most destructive opponents.
The wheel assembly is made from the popular 4" Colson Performa tire. These are machined and mated to our custom hubs, bearings, and 19-tooth Chromoly sprockets. This combination weighs in at just 1.1 pounds - including the drive sprocket! We believe that this is the lowest-cost and lightest wheel/sprocket combination available. These wheels are included in all our kits but you can also order them separately.
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