Making the material
The material used for the base was SYLGARD® 184 SILICONE ELASTOMER KIT from Dow Corning. The base (part A) and curing agent (part B) should be mixed with 10:1 ratio. To cure this material, it should be placed in a oven at 100 degrees for 35 minutes.
Place LEDs on the 3D printed circuit
The 3D printed conductive material will serve as circuits needed for the LED to light up. Place one LED on each fingertip.
Pour PDMS on the printed conductive material
Slowly pour the PDMS that have been prepared. Make sure the it is spread evenly.
Place the main body onto the poured PDMS
Place the main body (that is prepared in Step 4 with laser cut PMMA sticks) over the PDMS that is just poured onto the circuit, with the air channels facing the PDMS, and let both layers cure and bond to form a single part. Make sure the PMMA sticks do not fall out of the air channels, since they are needed to prevent the PDMS filling in the air channels.