I made this belt grinder some time ago. I wanted a small one I could park on the bench for grinding smallish items. I chose 25mm x 762mm belts because there is such a large range of grits available.
The grinder has a steel drive drum and a Delrin idler, with adjustable tracking. Belt tension is via a sliding spring thingy I made, table is adjustable for angle and there is a platen just above the table.
The grinder has a steel drive drum and a Delrin idler, with adjustable tracking. Belt tension is via a sliding spring thingy I made, table is adjustable for angle and there is a platen just above the table.