Quote:
|
Originally Posted by ShadowKnight
It does weight more than I would like it to, but there's something to be said for the ability to move an entire crosspiece. Additionally, we do not have the capability to weld a frame together. Also, an 80/20 supplier helped sponsor us, and I have no problem showing off their product when I think it's some really great stuff.
|
Seth, this is a good drive base frame. Kudos to you guys and good job for using excellent materials.
As for the weight issue, sure, as people said above, there are lighter options. However, you are also putting the weight where it needs to be. I always worry about making a drive base that is too light. We make efforts to lighten gears, wheels, and frame material. Yes, this does save weight and it allows you to put weight on other areas of your robot. This is what always worries me. This action of saving weight in the drive base essentially raises the Cg (center of gravity) of your robot. Having a strong, beefy drive base frame helps you keep that Cg low and makes you resist a tip easier. Having a light weight drive base generally raises your Cg and allows you to be tippy.
This is yet another trade off when designing a FIRST Competition Robot. While this frame may weigh more than others, it provides a solid foundation and a low center of gravity for a robot.
Andy B.