Chassis weight

[potatoarecool]

Hey guys, I was wondering how heavy a robot would be if it was only made of parts from the kit, with nothing but the electronics, 2 motors, wheels and battery. Did anyone check for this? Thanks.

[wilsonmw04]

We did that, sort of. We used a 6-WD with two sets of chains on each side. Without the battery it weighted ~47 lbs. With just the parts in the KOP i bet it's closer to 40 lbs.

[wilsonmw04]

Originally Posted by Zyik

Ours is 13 pounds

I find that hard to believe when the frame itself is 17 lbs if you use every piece. heck the Transmissions + CIM's are close to 6 lbs each.

[Otaku]

Our chassis (non-kitbot, fully custom) with no transmissions or anything is 17lbs. With transmissions and two CIMs total it feels much closer to 35lbs.

[AndyB]

We weighed ours with a chassis, 4 wheels, 2 sprockets, 2 gearboxes, and no electronics and it came out around 26 lbs. No battery, only 2 cims. So factor in battery weight and whatever the weight of the electronics panel would be and it probably will run up to around 45 lbs.

[Clifford]

If you're thinking about what your robot will weigh fully built, remember that the weight of the battery is not included in your total weight at inspection.

[beemgruem]

Ours is with battery, electronics board, 2 normal 2 small wheels, 2 gearboxes, I don't remember the sprockets. It is 46 Ibs.

[Aren_Hill]

We finished our frame yesterday at 11.5 lbs

[sdcantrell56]

Our completely finished uber beefy drivetrain with motors and electronics is right around 50lbs

[midway78224]

our drivetrain when we finish it was at 55 lbs that was with electronics, supershifters, six wheels, etc....

[Madison]

Our frame is 10.75 lbs.

The complete, operational drive train, save 12V battery, is 35 lbs.

[sdcantrell56]

How and why do some teams make the drivetrain so light? It would seem that it would hurt the CG a lot.

[Madison]

Originally Posted by sdcantrell56

How and why do some teams make the drivetrain so light? It would seem that it would hurt the CG a lot.

We make everything as light as possible. Adding weight later is much easier than taking it off. In the ten years that I've been with FIRST, I've had a robot tip over twice.

[sdcantrell56]

Don't get me wrong I really love your frames although they are a little thin for my liking...I just think that sometimes people worry about weight in the drivetrain a little too much since that is the best place for the weight.

[Molten]

In the two years that I've been in FIRST, our robot has tipped over three times. (We played a lot of defense last year.) But MKrass is right, adding weight is really easy, I wish losing weight was the same.