Heat Sink

Looking for info on a heat sink for the motor. I once saw one made by a member but can not find it again,

He wrapped U shaped pieces of aluminum channel around the motor and secured it with long hose clamps. Ace Hardware, Lowes, HD carry it.

thanks for the info. as I seem to remember there was either a video or some pictures do you know where I could find them or a link to it

seem to recall some copper pipe squeezed as spacers between the channel