IF there is a 1" diameter post aftermarket tool rest that you really like, you could possibly use it on the Shopsmith universal lathe tool rest (UTR) if you remove part number 521794 (Tool Support and Shaft Assembly). It is the little swing arm that the tool rest mounts in. Without it, you would just insert the 1" post tool rest into the "Top Support" (521773) bore hole. The downside is you might not have enough articulation with the 1" diameter post tool rest without the swing arm part of the UTR. In theory, you could use either 0.75" or 1" tool rests in the UTR.
