Static trigger for phones 7.5mm thick. It will fit any of the modern iPhones.

Used some copper wire and foil tape to finish the trigger.

1. Tape foil to the back trigger
2. Run the wire from the back trigger through the hole, to the touchscreen side
3. Tape it down on the raised surface on the touchscreen side with more foil tape

Make sure to put the wire on the foil tape, then tape it down opposed to putting it under the foil tape

If it's too loose for your phone, use some double-sided tape on the foil to add some thickness to the pad

Printed at 15% infill with a raft.