I'm about to start building a small fixed gantry router. I plan to make complex carvings in wood (and hopefully aluminum) using models prepared by Vectric Aspire.
I've attached drawings of my anticipated build. Comments (especially those pointing out design flaws will be greatly appreciated). I plan to make most of the components from 8020 extrusions and connectors. A small amount of steel plate will be used. I plan to use rails and blocks for the X axis obtained from Glacern. The Y and Z sliders will be made using components from CNCRouterParts.com.
I will add corner gussets and plates for rigidity that are not shown in the drawings.