During the design of my new LCD 3D printer and resin development, one of the most interesting materials I have been experimenting with is this highly flexible resin, that 3D prints quite fast and keeps a very high detail.
I immediately started to think about many interesting projects based on this materials, including soft actuators, and a DIY flexible keyboard project, where instead of using silicone, this SLA highly flexible resin is used.
The benefit of this solution is that silicone parts are expensive and time consuming, while this method can lead to a nice build in very short amount of time.