After recently using the Walko Workbench, one thing that really impressed me was how functional and useful the Walko surface clamps were. With the TWC, I think they would be perfect, with a matrix of holes cut into the MDF top to fit the Walko Clamps where-ever needed.
I’ve got 2 sets on order (apparently floating somewhere off the coast of Australia as I type) from Ideal Tools (they have a dedicated WALKO website now online).
The beauty of these clamps is they are really low profile, clamp very irregular shapes, quick action, fit anywhere (at least anywhere there is a round dog hole) and did I mention low profile?
Once they arrive, I will convert my TWC to a massive radial arm drill, and cut regular dog holes over the surface of the workbench’s sacrificial MDF top.
Speaking of the top, I have determined that because of the cast iron router table I am using at one end of the workcentre, my top needs to be 40mm thick. I could do this with one thick MDF sheet (I assume sheets that thick are available), but instead I am going for 2x 16mm sheets, with an 8mm sheet sandwiched between them. These will be screwed, not glued together, so once the first surface is completely wrecked in time by cutting/routing into it, I can simply flip it over for a new top, then rinse and repeat for all the other sides. I expect it will be some time before I need to actually replace all the sheets!
I could always go 5 sheets of 8mm – wonder if that would be better? My only concern is ensuring the sheets remain as flat as possible – whether regular screws are suitable, or perhaps regular bolts would be even better to ensure they are held tightly together. A trick learned from the Ideal Tools course where lines drawn on the top intersect above each screw (or bolt), so that you know exactly where they are when setting up for through-surface cuts which would otherwise result in an untimely meeting of carbide and steel.