Vacuum foaming
The process involves heating a plastic sheet until soft and then draping it over a mould. A vacuum is applied sucking the sheet into the mould. The sheet is then ejected from the mould. In its advanced form, the vacuum forming process utilizes sophisticated pneumatic, hydraulic and heat controls thus enabling higher production speeds and more detailed vacuum formed applications.

Materials:
1) PVC sheet
2) Mould that can resist heat
3) Vacuum forming machine

In-class demo

Done in the class!
Vacuum foaming doesn’t work with some materials as it will hard to take out after forming the shape. The object that you have chosen must be have a bigger base than the body.

Vacuum foaming process