Step 2b: Impulse Seal

An alternative to the heat press is the impulse sealer, which does not require an acrylic frame and is a fast way to produce prototypes. This method, however, is more susceptible to imperfections and requires the LJS to have a simple geometry.

Sealing with Impulse Sealer 

Impulse SealingCover internal material (e.g. paper sheets) with TPE in the bottom and top layers. Seal every side of the Laminar Jamming Structure.

Adjust the time of application according to the type of TPE used. In this tutorial, we applied the sealer for 3 seconds using the Strechlon 200 TPE with 0.0015" thickness. 

Do NOT include the tube inside the TPE container.

Step 2b - part 2 Carefully cut extra material outside the sealed area.
Step 2b - Part 3 Create a small cut to insert the plastic tube.
Step 2b - part 4 Seal it with PTFE thread seal tape.
Finished structure

Wrap the interface between the tube and the envelope thoroughly. You have now finished the fabrication process.