Jun 172011

I’ve been thinking and talking about building a vacuform table for about a decade at this point. In the period between living with my parents and owning a house, it wasn’t a practical aspiration to act on. Once my wife and I bought our house, it became a much more tangible goal. The size and quality of our basement only made it even more plausible. Still, we’ve lived in the house for about two years now and I have yet to actually build the damn thing.

That ends this weekend.

There is no intrinsic difficulty to the concept of a vacuform table. The basic idea involves heating up a sheet of plastic, and then pressing that down over molds while using a vacuum to suck the air out of the gaps. A many-holed “platen” sits between the mold and the vacuum hose, which allows high-pressure, even evacuation of the air. A very basic vacuform rig can be accomplished with a home oven, a home vacuum, and a cheaply-constructed platen.

I’m planning to be a little more grandiose than that, building an integrated unit that contains its own oven “above” the vacuform surface. Once the plastic is heated to sufficient malleability, it rides down drawer rails onto the platen, and the attached vacuum does the rest of the work. Hit the links for a pretty close approximation of what I’m planning to build.

I’m specifically not planning to finish building it this weekend; just to start. If I finish, great, but I’m trying to set realistic goals. Just getting all of the parts together will be a victory, and probably build enough momentum to see the project through to completion.

I’ll try to document as much of the construction process as I can, and put it up here as a Page, for those interested in making one of their own, or just seeing how I did mine.