Quantity   Component name
2 × Atmega 328
4 × L293D H-bridges
1 × OWI Robot arm
8 × Opto Interrupters
1 × Brass Rod
2 × Stepper Motors one or both may be replaced
2 × Teflon tubes
1 × Steel Tube
1 × Thermistor
1 × Kanthal heater block Made with scrap aluminum
1 × Precision metal rod
1 × Timing belt