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Re: which is better aluminum or steel????
For those wishing to do some actual engineering calculations to compare materials for a given robot application --
I recommend checking out:
http://www.matweb.com/
Lots of cool information there. You can plug in values to your heart's content.
John
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In the interest of full disclosure: I work for VEX Robotics a subsidiary of Innovation First International (IFI) Crown Supplier & Proud Supporter of FIRST
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