I’m in the market for a vacuum frame, and looking online I came across these: https://www.dennis-ramos.com/portable-vacuum-frame. Does anyone know anything about them? Are they any good? The price seem right (from what little I know). And if anyone knows of a better, similarly affordable option, I’d be eager to hear it. (The Edwards Engineered ones are very nice looking but wayyyy out of my price range.) Thanks!