If you want six rollers with three dc motors then that's simple enough. The output shaft of each motor is fitted with two sprag clutches, facing in oposite directions. One sprag clutch drives a reversing gear.
Rotating the motor clockwise drives 'roller one' clockwise direct through the first...
Hi Newbie 68. Just joined meself :)
Design, block, cook, fit manifolds, test, paint and ship.
That is; sort out what size it has to be, get the core together, apply some process that joins it all together, connect all the finned pipes together with U tubes or tanks, test it, finish it and...