We discovered an excellent video recently about vacuum forming using household items. Using scrap wood and a shop vac, check out how easily vacuum forming can be done in your own house. Talk about a great potential science project!
Vacuum forming is a variation of thermoforming, where a sheet of plastic is heated to a certain temperature, and then stretched onto a mold. It is held against the mold by applying vacuum between the mold surface and the sheet. Dashboard, product packaging and many other products are commonly made using this technique.
Precision Board Plus HDU is used to make vacuum-form tools because it is a lower cost alternative to wood and metal and can be machined much quicker.
This is a picture of a vacuum form tool:
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