Quantity   Component name
16 × Solenoid actuator Electronic Components / Misc. Electronic Components
1 × Sainsmart 16 relay board Relay board
1 × Power supply 12 Volt Power supply for actuators and relay board
1 × Aluminum beam Beam that is used to mount the actuators in
1 × Electrical wire wire
16 × Diode The actuators are essentially electromagnets, when they are turned off they cause back-current. So it is advisable to include a diode.
1 × M3 treaded rod Used to connect multiple devices and to mount the wristband brackets
32 × M3 3mm screws To mount the Actuators in the frame. 2 per actuator.
2 × Wristband brackets 3D printed, see files.
1 × (elastic) ribbon Used as wristband
1 × Buckle If you use a non-elastic ribbon