I have a never used base grinder contact wheel (main driving drum) for a older Grindrite unit. This is a 13 inch or so wide drum, with vulcanized grooved rubber top layer. I was planning on building my own base grinder but no longer need to.
If anyone has thought about such a project, this would be a good starting point to base the rest of the machine off of. If anyone is interested let me know.
J