After looking for router sub-bases and router guides, I have decided what I need is a new router. I have been watching the Router Workshop and watched Bob and Rick, with those routers that the motor comes out of the base......Found one and have decided to buy a DeWalt DW618Pk. I will take the springs out of the 1/2 1/4 sears router and mount it in the main router table, will put the small sears in the router table, I got from Harbor Freight. BTW Harbor Freight has some nice Chicago routers, they also have tables and bits. Just type harbor freight into your search engine.