Quantity   Component name
2 × Hitec HS-5085MG servos Servos used to open and close eye iris- all components listed are available from Servocity.com
3 × Hitec HS-645MG servos Servos used for main head movements
2 × Hitec HS-5585MH servos Servos used for fan mechanisms on sides of helmet
2 × Actobotics 1/2" bore pillow block part #535158 Bearing mounts used for eye iris cups
1 × Actobotics 1/2" bore ball bearing hub mount part #535118 Bearing mount used to support head rotation servo
1 × Actobotics 1/2" servo shaft attachment part #525128 Hitec servo shaft extension for head rotation servo
1 × Actobotics 1/2" bore clamping hub part #545600 Clamping hub to mount onto 1/2" servo shaft extension
2 × Actobotics 1/2" clamping hub part #545600 Clamping hubs to hold iris eye cups
2 × Actobotics 6-32 x 1/4" ball links (12 ea/pkg) part #585432 Ball links for head and fan servo linkages
1 × 6-32 stainless steel threaded rod part #98847A007 12" long threaded rod for making servo linkages
2 × Actobotics Aluminum servo arms (single) part #525116 Heavy duty servo arms for head movement servos
2 × Actobotics Aluminum servo arms (dual) part #525118 Heavy duty servo arms for fan movement servos
1 × 2-56 ball and socket linkage (pkg 6) part #GPMQ3841 Ball links used to make eye iris servo linkages