This page has been created in response to the R2-D2 build project posts I have been doing. Rather than forcing everyone to go through each and every post to get my parts list, I’ve created a single repository for it and will link each post here. This page will exist as my official R2-D2 parts list page.

Please keep in mind there are literally hundreds of different ways to build an R2-D2. This should only serve as The Geek Pub R2-D2 parts list. In other words, the way I built it. You may choose to use portions of my build, all of it, or none of it.

List of R2-D2 Project Posts

You may with to refer to the following R2-D2 project posts for context on this parts list. As I build and complete R2-D2 I will continue to add posts to the site and to this list.

The Geek Pub’s R2-D2 Parts Lists

In this parts list I will detail every part I have purchased and a link to where I bought it (if applicable). It’s important to note that I am not including what I paid for it because I feel like the prices change too often and for my privacy (and quite honestly, if you have to ask you probably shouldn’t consider this project.)

I will also break the parts list down into five sections: Dome, Body, Legs, Electronics, and Other to make it simpler to understand.  Some parts I will list in both places for clarity. For example, I used the same servo’s in the dome and in the body. Again, this list will grow weekly as I continue the build process and I will update this to a final version when I officially complete my droid.

Where appropriate I will link the astromech.net forums for parts runs and other information you may need.  You’ll need to become a member of the club (its free!) to read those posts. It’s also import to note that some vendors will not sell you parts without your valid astromech.net UserID.

The R2-D2 Dome Parts List

The dome is a very complicated set of components. There are many ways to build it, but I chose to go the all aluminum hydro-formed dome for authenticity’s sake. I just don’t think a plastic dome painted silver looks the part.

Part QtyDescription and Link(s)
Hydro-formed Dome1I purchased the Darren Murrer hydro-formed and laser CNC cut dome. In my opinion its the only one anyone should consider. It’s rock solid, super screen accurate, and a joy to work with.

Purchase link:
http://www.graniteearth.com/ProductDetails.asp?ProductCode=ALUMINUM-DOME-SET

Radar Eye Bezel1I purchased the Darren Murrer CNC cut radar eye. It’s solid aluminum (“diet version” if you will).

Purchase link:
https://www.graniteearth.com/ProductDetails.asp?ProductCode=PAY-RadarEye-CSR-R2-Builders

Dome Bearing1R2-D2’s dome rotates around his body. You’r going to need a big ass bearing for that. Rockler makes a “lazy susan” bearing that is beefy and the perfect size. Rockler part number 12451.

Purchase link:
https://amzn.to/2UD6xlc

Holo Projectors3Again, wishing to stick with all aluminum parts, I ordered the aluminum holo projectors from Bob Considine on the Astromech forums.

Purchase link:
https://astromech.net/forums/showthread.php?24378-Holo-Projectors-amp-Mount-Control-System-BC-Approved-Various-(Sep-2015)-Open&highlight=holo+projectors

Press fit Studs50In order to attach your hinges, and other dome parts, you’ll need either a very strong adhesive or some press fit studs. I chose to go with press fits studs for most items. It’s a permanent and elegant solution.

Purchase link:
https://www.mcmaster.com/catalog/125/3286

The R2-D2 Body Parts List

As with the dome, the body is pretty damn complicated. So this will be long.

Part QtyDescription and Link(s)
Outer Skins1Again sticking with aluminum to the look that I am going for. I will be painting only the other skin so the aluminum under skin will show through all of the cracks and hinges.

Purchase link:
http://www.rebelscum.com/estore/products.asp?cat=182

Frame1I purchased the WORR Parts Super Frame. It’s solid aluminum and super nice. It comes with tons of accessories you’re going to need for mounting all kinds of other components such as the legs, speakers, circuit boards, etc.

Purchase link:
https://www.worrparts.com/collections/legs/products/xxxxxxx-tra-com9-csr-blue-super-frame?variant=3947263918107

Center Vents1These center vents from WORR parts are the highest quality one’s you’ll find.  I am even told that Disney has started using these on their own droids.

Purchase link:
https://www.worrparts.com/collections/legs/products/center-vents-assembly

Coin Returns1These Dallas CNC coin returns are featherweight and a perfect fit.

Purchase link:
https://www.worrparts.com/products/csr-coin-return-set?variant=10914532804

Coin Slots1

These are the featherweight or “diet” coin slots from Dallas CNC/WORR Parts.

Purchase link:
https://www.worrparts.com/products/x-tra-coin-slots-aluminum-csr-version

The R2-D2 Legs Parts List

The legs include the actual legs, the ankles, the feet, and the drive systems.

Part QtyDescription and Link(s)
Legs1I purchased James Vanreenen’s (Dallas CNC Shop) all aluminum legs. They’re rock solid and awesome.

Purchase link:
https://www.worrparts.com/collections/legs/products/aluminum-legs

Horse Shoes1I also purchased Jame’s horseshoes. These are the real deal folks!

Purchase link:
https://www.worrparts.com/collections/legs/products/diet-aluminum-horseshoes?variant=4134661316

The R2-D2 Electronics Parts List

I’ve decided to build the brains of my R2-D2 from scratch including writing my own custom operating system.  It’s based on a Raspberry Pi center brain and three Arduino Mega 2560s.

Part QtyDescription and Link(s)
Raspberry Pi 3 B+1The “brain” of my R2-D2 is the Raspberry Pi 3 Model B+. It runs a custom set of Python3 code that controls everything from the drive train, body panels, and plays the sounds. It communicates over I2C and GPIO to other devices.

Purchase link:
https://amzn.to/2Ws05Ox

Ardunio Mega 25603The Raspberry Pi connects to these Arduino Mega 2560 boards over I2C to control all of the various relays, servos, LEDs, and screens.

Purchase link:
https://amzn.to/2HWfF12

Slip Ring1In order to keep your wires from getting tangled and ripped apart as R2-D2’s dome spins, you’re going to need a slip ring. This will allow your wires to spin on a hub but still pass their signals.

Purchase link:
https://amzn.to/2UCE7bf

DB-25 Breakout w/case1One thing I wanted to do was to avoid permanently soldering the slip-ring to the frame. This allows for easy maintenance and replacing of the slip ring later on.  For that I used these awesome DB-25 male breakout cases.

Purchase link:
https://amzn.to/2Y2uZim

DB-25 Breakout BoardOn the other end of the slip ring I also wanted to avoid soldering to simplify maintenance and changes, for that I used these DB-25 female breakout boards. These quite simply rock.

Purchase link:
https://amzn.to/2W5blAu

Micro Servos (cheap)20To actuate the holo projectors and other movable parts of R2-D2, you’ll need servos. Some times such as the holo projectors will require two servos for full X-Y movement.

Purchase link:
https://amzn.to/2HYwR67

Micro Servos (expensive)12I found the cheap servos were just not strong enough to automate the dome panels as accurately and quickly as I wanted them to, so I used some more expensive Hitec 33065S HS-65HB Mighty Karbonite servos for those.

Purchase link:
https://amzn.to/2XtHRfZ

Dome Motor1I went with the Pololu 30:1 motor to spin my dome. It’s much more affordable than the pitman motors and works just as well.

Purchase link:
https://amzn.to/2XoTWmT

The R2-D2 Other Parts List

In this section, I will cover parts that are universal, such as paint and finishing parts.

Part QtyDescription and Link(s)
R2-D2 Blurple Paint3For painting R2-D2, I decided to go with Dupli-color Sonic Blue Pearl. It’s a Ford “perfect match” paint. It’s blue with a lot of hits of purple and metallic. It’s not a perfect screen accurate blurple, but it so close I don’t care to go to the effort to re-create Hypo-Blue or Dykem.  Dupli-color part # BFM0378.

Purchase link:
https://amzn.to/2O4dfhT

Clear Coat3Sticking with Dupli-Color to make sure the clear coat does not react to the blurple paint, I chose Dupli-color’s Universal Clear part # BCL0125.

Purchase link:
https://amzn.to/2Hy98JF

Self Etching Primer2For paint to bond to aluminum its highly recommended that your rough the surface with 320 grit, followed by the application of self etching primer. This will create a strong bond between the aluminum and the top layer of paint.  I chose Dupli-color Self Etching Primer part # DAP1690.

Purchase link:
https://amzn.to/2TCIXsw

The R2-D2 Tools List

These are tools I purchased (or already owned, but consider must haves) for building R2-D2.

Part QtyDescription and Link(s)
Benchtop Buffer1For polishing the dome and other aluminum parts, a benchtop buffer will turn a full days worth of work into just a few minutes.

Purchase link:
https://amzn.to/2CTeSe3

Buffing Pads3You will need cotton buffing pads (get two or three of them for different compound grits) for use with your benchtop buffer.

Purchase link:
https://amzn.to/2HY4O6H

Buffing Compound1Grab a variety pack of buffing compound for your buffer. You’ll mostly use the red compound, but its great to have the others for certain work.

Purchase link:
https://amzn.to/2Yu2TMV

Flush Wire Cutters1You will be doing a lot of wiring inside your astromech. A good set of wire cutters is essential, and these are great flush cut units. Flush cut is designed for cutting right up to a connection or solder joint such as a resistor in a through hole board.

Purchase link:
https://amzn.to/2YxP4NC

Auto-Ranging Mult-Meter1Along with the rest of your work you’re going to do a lot of electronics testing. Get a good auto-ranging multimeter.  Also, check out our article on picking the best multimeter.

Purchase link:
https://amzn.to/2FzDlp5

Soldering Station1Get a proper soldering station. You’re going to solder a bunch of components, so don’t mess around with a $3 iron from Wal-Mart and get something good.

Purchase link:
https://amzn.to/2HMMvBZ

Quality 60-40 Solder1Get some .06mm 60-40 Tin Lead solder. Thin soldering wire is so much better for small components and will really change how good your results are.

Purchase link:
https://amzn.to/2WnCC14

Head Visor Magnifier1When you are soldering all those parts or trying to read the tiny print on circuits you will be very glad you have a lighted head magnifier!

Purchase link:
https://amzn.to/2HXJvSD

JST SM Kit1Since I am using a lot of Raspberry Pi and Arduino components, I decided to invest in JST SM kit so I could make my own custom headers and wiring harnesses. Even my servos have custom headers for connecting them.

Purchase link:
https://amzn.to/2XvKOwR

If you have any questions or comments, leave them below!