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Cast aluminum tooling plate is anything but exotic. It is standard feed stock for every machine shop on the planet. Maybe it's called something else where you live, but I guarantee that if there's a metal shop or factory near you, there's a source of cast and milled aluminum plate.Regular aluminum plate is extruded and always warped. It will not be flat enough to print on, especially in the size you're trying to use. I don't think you'll be able to force it flat by bolting it to a frame.If you can't find a local source, there's always ebay- lots of tooling plate listings there. Get an oversized piece and you can cut it to the size you need with any saw that will cut aluminum- a hack saw, a sawzall, jig saw, or table saw with a carbide blade.
Thanks. I'd probably go a little thicker than the 1/4" plate I used, but the mass is going to get pretty high- is your bed moving in the Z axis? Tooling plate won't warp much when heated. If you live in the Milwaukee or Minneapolis area, Howard Precision Metals sells cast tooling plate cutoffs for $2.50 per lb.
Very good! I have an ETX-90 that I've been looking to mount this way. You just saved me a whole lot of trouble!
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