Quote:
Originally Posted by cbale2000
Strong drive systems are nothing new, 6CIM drives were possible as far back as 2006 (maybe even before that) before bumpers were mandated or even common, they're simply easier to build in recent years due to the availability and relative low cost of high quality COTS gearboxes.
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Motor limits were in place to prevent 6 CIMs every year besides 2013 and 2014. The MiniBike motors (things that looked like large CIMs) used to be allowed (2006, not sure about 07) but you couldn't have 6 CIMs on any robot until 2013 as far as I know. We also didn't get MiniCIMs until 2013 as well. Before that adding drive power normally meant adding either Fisher Price motors for a long time or eventually BB775s (when they weren't case shorting) when they were introduced both of those are normally worse on drive trains do to their lower thermal mass and need for air cooling. 6 CIMs and the addition of MiniCIMs has made the process much easier, COTS gearboxes or not.