1 of 9

GUIDE

After Biomaterials Manufacturing

2 of 9

  • Once cooked, it is ready?
  • Drying strategies
  • How and when to unmold

01

3 of 9

Once the piece has dried (when we touch it and we no longer feel it cold, but at room temperature) we can take it out of the mold.

To do this we take the pieces, and remove the clamps that position the frame on the base, then we try to take off an edge of the frame, using a cutter to help us if necessary. And we look for an edge from which we can evenly pull the surface to avoid tearing.

Agar agar

unmolding

4 of 9

It is very common that the edges have torn a little, or that they have peeled off and are not completely shaped. What we can do in this case is to cut them to obtain homogeneous sheets.

Trimming

Agar agar

5 of 9

If the result is a piece of a certain thickness, as can be achieved with gelatin and coffee, it is recommended that once unmolded it be left to dry for a few more days flattened by elements of a certain weight, such as books, but covered with baking paper or something impermeable to prevent the books from being damaged by the humidity that will continue to be released from the pieces, and turned every 6 hours or so.

To avoid in

Agar agar

6 of 9

Gelatine

unmolding

7 of 9

Record of Evolution

02

8 of 9

Since the materials change a lot from the moment they are poured into the mold until they are dimensionally stable, it is suggested to take photographs periodically of their evolution. For this purpose, a light box will be very useful, which can be installed in a fixed space to portray the evolution of the material. Then, based on these records, we can elaborate a timeline of the evolution, even an animation based on the photographs, if they are always taken from the same point of view and with the same framing.

9 of 9

IG / FB: @fablabbcn

THANK YOU!

Except where otherwise noted, content on this presentation by Fab Lab Barcelona licensed under a Creative Commons License.(CC BY-SA 4.0)