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[b]AstromechBuilder.com Gallery[/b] Monty McGraw R2D2 Foot Drive - Version 2.0
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Monty McGraw

1. R2D2 Foot... 2. Modified 4"... 3. R2...

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slot track2

slot track2

Date: 03/12/2009 Views: 511 Owner: jonny5

R2D2 Foot Drive - Version 2.0

I changed my original R2D2 foot drive design from the Mark Mullen gear/chain design using an EV Warrior motor (Scott Powers EV warrior frame design) to move one of the two Colson drive wheels to a shaft at the rear of each foot, driven with a chain drive like the Alex scooter motor design.

Date: 01/01/2008 Owner: Monty McGraw Size: 7 items
Right foot drive

Right foot drive

Version 2 of right foot drive. You can see the addition of the 1/4 inch chain and sprockets. I have moved the bronze bearings in between the drive plates on the outside of each foot.

Date: 01/01/2008 Owner: Monty McGraw Views: 1900
Left Foot Drive

Left Foot Drive

better view of the chain on the outside of the left foot drive. The pair of 10AWG twisted wires are to the EV Warrior motor. Soldered direct to the motor (no room for the original connector). I have already modified both EV Warrior motors to eliminate

Date: 01/01/2008 Owner: Monty McGraw Views: 2085
Bottom view - Left foot drive

Bottom view - Left foot drive

Full bottom photo. I've got R2 propped on a stool on the against the bottom ring of the JAG v4 frame to get these photos. You can now see the placement of the four bearings. In my V2.0 foot drive design I have moved the small chain and sprockets in Mar

Date: 01/01/2008 Owner: Monty McGraw Views: 2478
My R2D2 rear view - showing wiring

My R2D2 rear view - showing wiring

here is a rear view of my R2. The wiring is messy, but when I disassemble everything for painting, I plan to rewire and put all the electronics on top of the ALU plate running underneath the shoulders. I've been very happy with my Futaba TX/RX setup, Va

Date: 01/01/2008 Owner: Monty McGraw Views: 2786
Left Battery Box

Left Battery Box

I use a NiMH 12V 10AH battery pack in each foot. I could put two of them in each JAG ALU battery box with no problem, but I had no problem at CIV running the whole day on a charge. You can see the thermocouple cable in this photo. I have tucked the met

Date: 01/01/2008 Owner: Monty McGraw Views: 2043
FootPlate2

FootPlate2

emachineshop CAD drawing of my version 2 foot side plate. Two side plates are needed for each foot.

Date: 01/02/2008 Owner: Monty McGraw Views: 1107
R2D2footPlateV2

R2D2footPlateV2

This is a screenshot of the foot plate drawing. The three holes marked "match previous plate" were based on my 1st design with hand drilled holes. I had to adjust these holes after assembly to get the shafts and gears to turn freely :)

Date: 01/02/2008 Owner: Monty McGraw Views: 1696
   
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