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Thanks so much for the analysis IRstuff. Its very helpful to know that the heat transfer through the plates is possible with convection and to have an idea of what to expect before I dive into building the thing.

So the MIC-6 plates can heat up 50F in three hours with convection? Just want to make sure I understand.

Thanks IRstuff. So let me see if I am interpreting your work correctly: the chart and graph seem to show it would take 3 hours (chart) or 20 time steps or 200 minutes (graph) for a roughly 20F change in plate temp. Is that right? And yes both outside faces of the plates are exposed to...

yes, a common composites fabrication technique is to pull a vacuum inside plastic bag, where the atmospheric pressure compresses the laminate layers.

IRstuff the panels and plates are roughly 20"x 40" and ideally the plates would reach ambient temp in a few hours. more than 90% of the 20 x 40 surface (although covered by the vinyl bag) is exposed to ambient.

Hi, I have been making custom composite panels (mostly wood and carbon fiber) for more than 20 years and I am modifying one of my vacuum presses so that the laminate inside can be pressed between two 1" thick cast and ground aluminum plates (for flatness...the plates are also inside the bag) and...