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Originally Posted by telkanuru
Remember. Your RC is heavy. More specifically, the chips inside your RC are heavy because they contain data, and data is heavy. Open up the RC and drill a hole through each chip. Also, pneumatic tubing weighs a lot. It too can take many, many holes.
In all seriousness, tho, a charged battery weighs a noticable bit more than an uncharged one. 13.5 and 10 lb, respectively, if I remember right... Dosn't make sense to me, tho... Electrons arn't that heavy. Hell, you don't even know where they are/are going.
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I'm curious, have you actually weighed the same battery charged vs uncharged? Did you get this information from a source (if so, could you point me towards it)?
I'm not doubting you
, I'm just trying to figure out what might cause this. Keep in mind that a charged battery has the same number of electrons as a uncharged one.
It is possible to lose quite a bit of weight by drilling holes, removing excess wires, and eliminating redundant fasteners. However, if you need to lose any substantial weight you'll probably need to redesign or eliminate a major component. Look at everything on your robot and ask yourself the question "Does this part add any value to my robot?" If you answer "no", cut that part off. It’s really disappointing to have to cut a major (and working!) subsystem off a robot but its often the only way to make the weight limit.
Greg