Hello
Thanks Otis, yes I guess youre right
Peter:
Yes, the vacum press is home made. The plugs are made of balsa wood. The box is made of MDF and pinewood and measure about 30x40 cm. The power source is an old vacum cleaner. The frame with the attached plastic card (1,5 mm) is put in the oven for about 2-3 min at 175 C.
When the plastic has a sag like an old hammok

its time to take it out (be very fast) and put it on to the plugs, hit the powerbutton on the vacum cleaner and.... voila !
This is my first try, and defenately not the last, its a fun way of making your own parts.
Regards
Per Olav