Quantity   Component name
1 × Parallax Propeller Protoboard (USB) Main Microcontroller
1 × AMS AS5304 w/ Adafruit SMT adaper board Magnetic Linear Encoder: Accurate to 1/40th of a mm! Wow!
1 × 200 Kg Button Load Cell http://www.robotshop.com/en/button-load-cell-200-kg.html
1 × 8020 1515 Lite Extrusion (Lots of it) See mechanical drawigns for exact amount
1 × 8020 1530 Lite Extrusion 23"
1 × 4'x8'x .250" HDPE Panel I did not use full sheet, I found this ad Menards for a very reasonable price. Used to make side panels
1 × Polycarbonate: .23" Used for front cover and chute cover
1 × Fasteners (Lots) Many various fasteners. Many 5/16-18 Button head bolts for fram construction. Carriage bolts, standoffs, etc. All were procurued locally at Home Depot or a True Value (Small hardware store)
1 × Nitra Pnuematic (Automation Direct) Cylinder 4" Stroke, 1.5" Diameter linear actuator. Spring Return single action.
1 × Parker Rotary Actuator Used to dump cans. This was an ebay find, and may be the only part not readily available. Could easily be replaced with a servo or DC motor.
1 × Various NITRA (Automation Direct) Fittings, tubes, reducers, etc. I used 1/4" tubing internally. I used a standard air compressor quick connect fitting connected to a bulkhead to 1/4" PTC. Also needed are speed reducers if a rotary actuator is used. I found mine to be to quick for my loader piece, and would jamm frequently without being a slowed down.
1 × Various Aluminum Aluminum Tubing, U channel, and Plate were all used. See mechanical drawings, most of this can be purchased locally.
1 × Cables, Connectors, etc. Many cables and conenctors were used throughout. Nothing was ordered special, mostly had these laying around the workbench.
1 × Estop Magnetic door sensor I used a door sensor from adafruit to sense the position of the front hatch for the estop chain.
1 × Buttons and switches All buttons and switches are from Automation direct. I used a key switch for power to limit who has access if required.
1 × Power Supply (12v & 5v) I Purchased a Mean Well dual output switching supply from Jameco. The Relays and Propeller board run off of 12v, whilst the Raspberry Pi needs 5v. This was a great power supply for that reason.
1 × Parallax dual relay board This accepts a 3.3v signal and switchs 2 Mechanical SPDT relays that control the two Nitra air valves
1 × Nitra (Automation Direct) Solenoid Valves I Have two solenoid valves, both are 110v AC. One is a single action, the other is dual action for the rotary actuator which does not have spring return. These may vary based on the fittings you have, and the actuators.
1 × Small electronics components (see schematic) I used many small components on the Proto board, most are for the Wheatstone bridge interface.