This instructable is finally complete with the now missing steps.  The Dome and torso section coverage were a little sketchy the first time around as one of my SD cards went missing.  It was since found when tearing out some floor molding in the kitchen.  Geez, why do I never look in the obvious places... So now their is no excuse to build one of these.  While your at it, load up on some Star Wars Vader's Dark Side Roast Coffee from ThinkGeek and this project will be complete

Star Wars, Love it or hate it.   One thing you can’t deny is the universal love and identification of one of its side characters R2D2, the little astromech droid who could.   Only now, he even better… cause he makes me coffee.  Of course anyone who makes me coffee goes up a few notches, so why not have a world renowned icon make it for you.  And for the tea drinkers, well… I guess you could use it to brew tea, if you like that sort of thing, probably while you watch Star Trek Deep Space Nine… 
In my world, Darth Vader doesn’t go all soft in the end.  Instead of taking off Luke Skywalkers hand he takes off his head, the rebel alliance is quashed, ewoks are served up crispy fried on a stick and Darth takes R2D2 as his trophy trinket, turning him into his morning caffeine delivery device.  AKA R2D2 Dark Roast Edition.
Betcha Yoda didn’t see that coming, huh George Lucas

Thank you all who have posted all the great comments!  It was a great build!

So the whole concept behind this was to have a coffee maker that could be used to brew coffee quickly for larger dinner parties that we have from time to time.  A regular coffee pot is just too slow to brew pot after pot as its being emptied so quickly by caffeine crazed guests.  Enter the industrial BUNN type coffee maker.  It uses a tank of water that holds two coffee pots worth.  First you pour in two coffee pots worth of water and turn the unit on.  It takes about 5 minutes to get the water hot the first time around, then it waits for you to add one more pot of cold water, this is when the magic begins.  As you pour cold water into the hopper tank, it descends a down a tube to the bottom of the heated tank.  Now this tank all ready has water in it that is nice and hot.  The cold water which naturally wants to stay on the bottom anyway pushes the heated water up and out an overflow at the top of the tank.  This overflow is connected to a tube which has its end set just below the level at which the hot and cold water find a balance.  As water flows out the tube it creates a siphon effect draining out the hot water from the reserve tank and allowing space for the cold water in the hopper to fill up.  Now the hot water has to go somewhere, so why not channel it into a coffee ground hopper where it brews up a tasty and oh-so quick pot of coffee.  The BUNN coffee units spout is kinda like one of those rain shower heads, where it sprinkles down hot water over all the coffee ground area at once.  This wets out the grinds quickly allowing for a quick brew.  Regular home units trickle it out at insanely slow speeds often inducing madness in morning commuters and small dogs alike.  Finally the large heater element takes very little time to heat up the now cold water in the tank and by the time you have drained the first pot of coffee, and gotten new coffee grinds ready the cycle is ready to start anew, remembering the tank holds two pots worth of hot water so is all ready ahead by one pot.

Step 1: Design

When building your R2D2 coffee maker there are several important thoughts to consider, with two of them being vital. 

First would be the dome, this has got to be the hardest part to find.  You wouldn’t think finding a perfect half dome wouldn’t be that hard, but it is, at least for someone as rural as myself.  Whenever I build something I always try and use recycled bits and pieces to keep my costs down and help the environment.  After all, every dome that is recycled rather than store purchased means one less innocent dome is hunted down and slaughtered.  That and I’d rather spend the money on my wife and kids then into give it to some middleman dome pusher.  People have tried using all sorts of things from salad bowls to cake moulds.  The life sized R2 makers typically use a bird bath that was produced for a period of time, evidently these have stopped being in production.  I found a industrial stainless steel float valve that was actually a perfect sphere at the local dump.  I was able to cut in half giving me two domes.  What you really want however is a dome that has about an extra inch at the edge like the real life production model had.  Mine is faked a little with the paint scheme disguising it.  The second dome was used to make the top water door and the central eye piece and made the build a lot easier.  So if you can get two identical domes, do it.  Now the size of the dome directly plays off the next crucial design step.

The BUNN coffee tank – really my dome should have been 3-4 inches larger to keep the aspect ratio of R2D2 true to life.  Once again I have disguised it by building a base on it that is cantilevered between the legs.  Another visual distraction is the Barista apron. 

Other thoughts are things like

What material are you, or can you use?  I can weld and cut steel and stainless steel, so this is my primary choice of material used.  If I had the means to weld aluminum who knows...  As is I ended up using a variety of metals from steel, stainless steel, aluminum, copper and even some brass.  Of course I don’t have the means to perform mythical metallurgical welding so I had to mix it up a bit.  A little welding, some brazing, soldering and some epoxy to round it out.  With all these types of joining you really want your materials to fit tightly together for good strong bonds.

Electricity – you really should have a basic concept of what you’re doing otherwise you could fry yourself or someone else down the road.  When you are not sure, make damn positive you talk to someone who does. 


Cutting, welding, brazing, soldering and gluing metal is very hazardous.  It will cut you, burn you, electrocute you and finish off by poisoning you.  You’ve been warned, take precautions

After that everything else is pretty much for kicks, like making him talk, adding lights and other finishing touches.  Details are important, but remember this is still a coffee maker that you or someone else has to clean.  All those little nook and cranny details are suddenly not so cool when you have to clean it!

I believe the correct term is... <br> <br><strong>NERDGASM!</strong>
This is probably the coolest thing I have ever seen. I wish some place like <a href="http://www.canadascaffold.com/struck_steel.asp" rel="nofollow">steel fabricators vancouver</a> would just make these and I would buy them.
OMG! you could make this epic machine into a baby....holder? yeah and it'd be so cute...if you have kids of course
This is wonderful! Wish I could work metal (I know little about welding and so on) you should sell them....I'd so buy one!
Thank you, you have to think of welding as hot gluing at slightly higher temperatures, its almost as easy.
That is the most brilliant description I've ever heard of welding!
Hey well done on winning the metal contest! I was so excited when I saw you took the grand prize this is just so darn cool! And (and I'm so not techy) I think it I had the time and tools I could do this myself! Awesome instructable!
Congratulations, you deserves the prize!
I love your title for this Instructable :-D
Why thank you
Heya! That pic of the lady with the coffee machine reminded me of Faye from Questionable Content comic! She made a dinosaur coffee pooping machine. You could try that next :D <br> <br>Here's links to all 3 of her espresso machines: <br> <br>http://www.questionablecontent.net/view.php?comic=1644 <br>http://www.questionablecontent.net/view.php?comic=1882 <br>http://questionablecontent.net/view.php?comic=2173 <br> <br>- Antzy
Ha, my wife loved it
hehehehe... whats 'it'? your cofee maker, the comic strip or the coffee maker in the comic strip???
All 3 actually, that and the heroine
Glad you guys liked it... :D
this robot is called &quot;android&quot; i think :P
The word was coined from the Greek root &aacute;&frac14;€&Icirc;&frac12;&Icirc;&acute;&Iuml; (anthro/andro)- 'man' and the suffix -oid 'having the form or likeness of'. <br> <br>Not trying to be harsh, just thought i'd clear up that deficit in your technical vocabulary. I have not met many men that resemble R2D2 in even an abstract way, so i figure R2D2 should not really be classed as an android. <br> <br>kthxbai.
whole world did the same mistake about this fellow :) and R2D2 must be his parent keeping in mind their similarity... Because of their design it is difficult to decide what are these things but i think you do agree that they are (r2d2 mind is dead so -&gt; was) too smart to be just simple robots. and i think that is the reason of calling them &quot;droids&quot; :) because of the smartness but not the shape :D <br>BUT I MEANT THE SHAPE AT THE BEGINNING :D
very valid points. i stand corrected.
In the movies, R2D2 was referred to as a &quot;droid,&quot; presumably short for android. Correcting mjagutis is pointless; you should correct George Lucas.
&quot;Help me, Juan Valdez! You're my only hope!&quot; Cool idea for Star Wars geeks.
Awesome! My lovely wife barely tolerates my coffee stuff, this might cause violence in my house. Then again I do have like half the counter covered with coffee stuff. I suppose if I made one look like a character from Grease she wouldn't mind, but that ain't gonna happen.
nice, which character though
None sounds about right. I hear Grease, I go fishing. Or wash the car or cut the grass or hit my head with a hammer until it stops. I sat through that when we were dating. Sort of how she used to cook until she got the gold. Just can't handle it anymore. I imagine Travolta would be her favorite. Or possibly he's the only actor I can name from the movie. <br> <br>Seriously, it's one thing to say hey that's cool and another altogether to be able to visualize it before you build it. Your coffeebot really is cool. <br> <br> I'm not very creative, most of my junk around here is born of necessity. Or from my being cheap. That's why I have a gutted and modded popcorn maker to roast coffee in on the counter, I'm too cheap to buy a roaster.
That's hilarious. never did quite work out the bugs to roast indoors. Did the same thing and filled the lower half of my house with coffee bean chaff...
Stainless perf from mcmaster-carr. Make cylinder that fits in the popper top and weld or solder on a cap. Chaff tends to fall back in when done but helps keep it off the floors. I suppose if you made a mushroom shaped top like a fresh-roast that would be even better.<br><br>I am trying to slap together a drum roaster right now from an old bread machine. Fun Fun.
This is AWESOME. I love it. Would you sell it??
yes, though being made of heavy steel, shipping might be an issue for weight
How much!
huh, haven't thought that one through yet to be honest.
First, Great work on the R2-D2 <br>Second, I'm really sorry to hear that SOME People cant read the red box bellow when commenting. I mean come on, if you spend your free time dissing other peoples work that they spent LOTS of time and effort on then try REALLY hard to find a new hobby. <br> <br>&lt;3
OH, not here on instructables. Generally everyone on this sight is awesome, sometimes criticism, but always constructive which i love. This instructable is going slightly viral and its on other sites where its been picked up that the comments were made. Thank you though!
AWESOME. If I had any technical skills whatsoever, I would try and make it. As I don't, and would be more likely to kill myself or severe several fingers, I'll simply droll jeaously over yours. <br> <br>Oh, and us tea drinkers will be watching Star Trek: Next Generation, thank you very much, drinking cup after cup of &quot;tea, earl grey, hot&quot;, along with our Captain (who is waaaaay better than Kirk. And begin &quot;which is the better captain&quot; match now) :-P :-D
I like to tease my wife and son, both tea drinkers...
Not only an excellent idea executed well, but beautifully and meticulously documented. 5 Stars and gets my vote.
whoo-hoo thanks! Its in the metal and food science contest as well!
Love the instructabe!!! <br> <br>Coffee holder should have been 3PO's head. <br>When the coffee started brewing he should have exclaimed &quot;Oh My! I think I smell coffee!&quot; <br> <br>Has anyone told your wife her smile looks like Gabrielle Carteris' from 90210.
Nice! that would have been funny! and I'm sure she would be pleased
Gorgeous!.........Coffee Maker ain bad either.....lol
wife went - TeeHee :)
Now that is one fabulous project!! I'm sorry you had to deal with awful comments earlier. Your family looks lovely and R2D2 looks happier in a family environment, not being shot down by Stormtroopers!! <br> <br>The Bunn concept is very cool - I always enjoy making up the coffee whenever I'm helping at my husband's office (I don't work there but help him when he does the Red Cross blood drives.). We just recently got us a K-cup type deal when our old coffee maker died...but now... I think this would be so much cooler!! Maybe I need to figure out a way to steampunk my k-cup coffeemaker...
Thanks, were more or less over it, more of the &quot;hey, that's not very nice&quot; shock of it. The bunn maker was a little tricky, think it might even be easier with the K-kup kind
Now my husband would probably go more for a TARDIS type coffeemaker... or the Captain Picard &quot;Tea, Earl Grey&quot; model... ;-)
That would be awesome!!!!!, my daughter collects all things Doctor Who, she wants her door painted like a tardis!
Just one word: <br> <br>WOW!!!!!!!!!
thanks, it turned out well
I never thought inside coffee makers were such material for steampunk projects! <br>It's beautiful!
I know, lots of good stuff in a BUNN. However a regular drip coffee maker is quite boring

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Bio: See some of my work here and as always accepting orders for custom design and fabrication as featured on Discovery Channel, Wired Magazine, Gizmodo, Engadget ... More »
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