[sanddrag]

Our lower deck of the frame is the maximum dimensions and consists of 6 pieces of extrusion, 8 corner gussets, and hardware and weighs 10.5 pounds. We will be adding a couple plates for mounting the gearboxes, a couple more for the arms, and 8 more short pieces of extrusion to stand off the plates that hold the arms. The 8 pillow blocks for the axles weigh maybe 4 pounds, then there's the 14 pound battery, all the sprockets and chains and bearings, wheels, axles, shaft collars, 4 drive motors, 2 window motors for the arms, and our suction device (which is going to be so cool you will faint when you see it in action) , and electronics.

And not to forget the rotating light. This is especially important to remember if you are going under the bar.

The bottom line is, you're robot is going to meet or exceed the 130 pound limit no matter what you do. I don't see any sense in weighing things like motors or electronics because they are going to weigh what they are going to weigh. Just try to keep the thing light from the start because that limit comes up A LOT faster than you might think.