• 0.2 mm OHP sheet and 2 mm foam sheet stuck at a grid of 50 mm alternatively with adhesive.

2 OHPs and 2 foam sandwich combination was used.

• The temperature in the OTG was 150 degrees Celsius for a period of 3 min.

• Result - The plastic sheet forms a corrugation whereas the foam takes the shape of the plastic and hardens. 

• 0.2 mm OHP sheet and 2 mm foam sheet stuck at a grid of 50 mm alternatively with adhesive.

2 OHPs and 1 foam sandwich combination was used.

• The temperature in the OTG was 150 degrees Celsius for a period of 3 min.

• Result - The plastic sheet forms a corrugation whereas the foam does not change much except on the edges where it turns inwards. 

• 0.2 mm OHP sheet and 2 mm foam sheet stuck at a grid of 50 mm alternatively with adhesive.

3 OHPs and 2 foam sandwich combination was used.

• The temperature in the OTG was 150 degrees Celsius for a period of 3 min.

• Result - Plastic sheets placed at the top and bottom (closest to heat supply) produce uniform and symmetrical deformation. 

The central plastic sheet goes under double corrugation whereas the foam sheets bend opposite to each other.

• 0.2 mm OHP sheet and 2 mm foam sheet stuck at a point grid of 25 mm with adhesive.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - The points on the surfaces that are connected are raised from the initial level together and the other disconnected points have varying distances within them.

The plastic appears to pull the foam along its surface, but really its the hardness and contracting behavior of the foam that informs the form.

• 0.2 mm OHP sheet and 2 mm foam sheet stuck at lines connecting in a grid of 25 mm.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - The sheets move almost together as one component because of the placement of the tight grid and form one complete bulge.

• 0.2 mm OHP sheet and 2 mm foam sheet stuck at lines connecting in a web geometry with adhesive.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - The center of the sheet where all points meet rises to the highest and pulls all other connected points towards the center of the sheet resulting in a distorted vault.

• 0.2 mm OHP sheet and 2 mm foam sheet stapled at a unidirectional grid of 25 mm.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - This time the points are connected at two points and not one. The staple pin makes sure that the sheets do not separate and gives a corrugated form to both the surfaces.

A long vault in the shape of a hyperbolic-paraboloid perpendicular to the grid lines.

• 0.2 mm OHP sheet and 1.5 mm foam sheet stapled at a line grid of 25 mm.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - This time the points are connected at two points and not one. The staple pin makes sure that the sheets do not separate and gives a corrugated form perpendicular to the grid lines.

• 0.2 mm OHP sheet and 1.5 mm foam sheet stapled twice at every point at a grid of 25 mm.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - The sheet rolls itself and forms an cave-like form, with close on one side and opening on the other.

• 0.2 mm OHP sheet and 2 mm foam sheet stuck at the entire grid of 25 mm with threads and adhesive.

The thread enables the two materials to stick at a thin line on the surface.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - This time the threads inform the form of the material. The sheets move almost together as one component because of the placement of the tight grid and form one complete bulge.

• 0.2 mm OHP sheet and 1.5 mm foam sheet stuck with a thread and adhesive at a grid of 25 mm. 

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - The sheet rolls parallel to the grid lines and forms corrugations all over between the grid lines. The form obtained is of a symmetrical corrugated vault.

• 0.2 mm OHP sheet and 1.5 mm foam sheet stuck with a thread and adhesive connecting corners and edges at the center.

• The temperature in the OTG was 150 degrees Celsius for a period of 2 min.

• Result - The center of the sheet where all points meet rises to the highest and pulls all other connected points towards the center of the sheet resulting in another form similar to a ribbed vault.