Dennis LaGrua posted:I recall an article done by resident OGR tech guru Jim Barrett, where he modified a Lionel track cleaning car to use a Scotchbrite pad in place of the foam one. Can't tell you all the details but maybe Allan A can point you in the right direction
I made mine by photocopying a foam pad and using that as a template for cutting out the thin Scotchbrite pad - the one without the sponge. Works a bit better than the original.