last year with our holomonic drive we noticed the cim would get up to 147ish degrees after some matches, so we added a fan to the top panel of our robot to circulate some hot our out, and we would measure the cim temps after matches. Especially at drive practice, but sometimes in competition, we set a box fan on top of our bot to cool them down between run times.
That extra layer you see on the drivebase side panels are actually part of the bumper mounts.