Quote:
Originally Posted by Ari423
This raises the question: if you built your entire 120lbs robot out of polycarb, would you exceed the $400 part limit (if it were one solid block) or $4000 total cost limit (if it were laminated sheets)? Someone with too much free time want to do the math?
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50lbs of PC resin = $175 so $420 for 120 lbs. I'm going to assume we use the bulk price of the resin. Otherwise your robot is free cause each pellet < $5. Actually, I think it's costed at the cost of the smallest amount you can actually buy that covers what you used. So if a carbon fiber resin only comes in $1000 drums, you're out of luck.
According to midwest steel supply, a 24"x24"x2" plate of 7075 regularly costs $440 and weighs in at 116lbs.