This weekend I had some encouraging results with Dragon Skin, a silicone molding compound from the pricey folks at Smooth On. Luckily, the silicone we had left over from PS04 was still usable, and it was much easier than I remembered. Some photos of the prototypes are available here.

What I’ll now need to figure out is exactly how to shape the nitinol I’ll be embedding, and how to ensure an electrical connection will always be made regardless of the bend-state of the wire. A journeyman friend is in town tonight but I’ll try to have a more detailed summary by tomorrow.

In the meantime, please have a look at the photos and tell me: how am I going to get the petals to shrivel/contract/close on command and what will have enough force to return the wire to its normal state?