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Originally Posted by Projectchon
Bacely, robots that have arms for this year, they all have a high COG (max 60in high)
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Please forgive me for using numbers to back up my statements; it's one of my engineering habits.
130 pound robot, 10 pound tetra lifted ~ 8 feet in the air
Example 1: Arm weighs 40 pounds, uniformly distributed vertically; remaining chassis/drive train/battery, etc. weighs 90 pounds, cg at 3" based on center of 6" base structure.
[(40)(50)+(90)(3)+(10)(100)]/140 = 23.5 inch cg height
Example 2: Arm weighs 20 pounds, remainder weighs 110 pounds at 4" height
[(20)(50)+(110)(4)+(10)(100)]/140 = 13.5 inch cg height
Take the weight out of your tall structure and move everything down as far as possible. It's not that hard to do if you design it in to start with. Otherwise, if you're our opponent - thank you very much, and if you're on our alliance please make sure your structure is designed to be plowed across the field; we'd like to have the 10 points for putting you in the end zone with us.