Thanks for posting the picture of the swing grinder attachment. Now I know what you are talking about. I actually have one just like yours. Bought it at a garage sale new in the box and unused for five bucks. It works pretty well, but like you I need to get it set up on a grinder so I can use the side of the wheel or on a belt grinder. I am leaning toward the belt grinder and fabricating a base that clamps onto the table registering in the miter guage slot. Low on my priority list at the moment as I am in the middle of remodeling one of the bathrooms in the home. Wifey gets a little testy when I am in the shop with so much yet to do to complete the bathroom.
When I do have time to get into the shop, I am working on restoring a Boice Crane 12 inch bandsaw I picked off Craig's list for fifty bucks. It came without the optional blade guards so I am fabricating some out of 1/8" sheet aluminum. Once all the pieces are made, I will TIG weld it together. Pictures will be posted once completed.
Thanks,
Pat