Quote:
Originally Posted by farmersvilleRob
Yup. $600 in 5 super ultrasonic sensors.
$400 electrical compass
$1300 in 8 COTS servos
$200 special aluminum for arms
$275 slipring
and whatever else
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What is wrong with normal aluminium? (of all the questions I could have asked, this is the first one that comes to mind
). What is so special about it? What are you doing that would make using a $400 dollar compass any more reliable (in practice) than using
3 or 4 less expensive sensors and average the values?
"So we have an arm, and the pot on it tells how high we are...
...and then we know how high we want to be...
...and if we're not high enough we go higher."
(I have to leave the room, we're all laughing too much.) - demosthenes2k8 [more] 
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