Introduction: Project Yolk

Picture of Project Yolk

The act of cooking and preparing food brings with it many subtleties and nuances. From finding the perfect way to pepper a salad to the ultimate technique in which to scramble eggs – a long debated issue between many cooks. This mass of personal preferences combined with the countless tools and gadgets that fill the homeowners kitchen, makes for a perfect testing ground for personalization and modification.

With this in mind, we envision a future scenario where a character has the agency to freely create anything that they will. This project is a reflection of that vision, and an example of what may be the future of making; of uninhibited, whimsical design.

This project was a collaboration between Denon Vipond, Logan Mohr, JJ Mah, and Lauren Low, who are currently studying Industrial Design at Emily Carr University in Vancouver, BC.

Step 1:

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Pick the perfect egg

Step 2:

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Crack the egg

Step 3:

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Place filled yolk containment chamber under nozzle, creating an air tight seal between the nozzle opening and yolk

Step 4:

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Slowly engage lever until yolk is halfway

Step 5:

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After performing egg extraction protocol perfectly, release yolk lever and let yolk fall into containment chamber

Step 6:

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Now you are ready to make... Waffles! Custard! Meringues! Egg Noggin! Hollandaise Sauce!

Step 7: Material List

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  • Epoxy resin
  • Moen sink plunger from Home Depot model: M7819
  • Sand paper
  • Untreated birch plywood
  • 2 threaded pipe connectors
  • 1 1/4 inch clear tubing
  • 1/4 inch dowel
  • 2 small egg sized bowls
  • 1 inch dowel
  • 4 Springs
  • 2 bolts
  • 2 locking washers
  • 2 regular washers
  • 8 metal countersunk washers
  • 12 one inch countersunk screws
  • 8 eye hooks


Studio Egg (author)2014-09-28

Hi Everyone!

Studio Egg is more than happy to answer any questions about Project Yolk. Let us know your thoughts!

seamster (author)2014-09-22

Nice and absurd. I like it!

Studio Egg (author)seamster2014-09-22

Thank you! Great to hear that you like it!

mni ming yun (author)2014-10-06


Studio Egg (author)mni ming yun2014-10-07

thank you mni ming yun!

canida (author)2014-10-01

Beautiful, elegant, and fun!

I highly recommend finishing the wood. Spilled eg would absorb, and destroy your carefully curated aesthetic.

nwlaurie (author)2014-09-28

Such a shame you haven't been able to incorporate any servos, let alone a Raspberry Pi and/or an Arduino.

Nice try just the same!


Studio Egg (author)nwlaurie2014-09-28

Hi nwlaurie,

Thanks for your comment! That is very interesting for you to bring this up as this is something we considered in the early phase of our process. For this version of Project Yolk we decided to stay away from Arduino and instead explore a mechanized, yet still manual way to separate the yolk. Servos would definitely make an interesting variation of this project!

nwlaurie (author)Studio Egg2014-09-29

and rubber bands - a project like this would REALLY benefit from plenty of rubber bands... and springs - I like BIG springs!
I suppose I'd better flag another wink, just in case... ;-)

rlove4 (author)nwlaurie2014-09-29

So how would you do it then nwlaurie? Surely you'd have to make the exact same structure but go to greater expense and time to add in weaknesses by over complicating it and ruling out anyone remaking it that doesn't have the knowledge or access to electricity never mind the technology?

It does seem pointless but it teaches and enhances the skills of the maker for further projects. I can see this in the classrooms of third world countries to educate - it may inspire some other idea that instead of splitting eggs it does something astounding like getting water out the ground or just makes an existing process cheaper.

One of my fave ibles was a plain wooden box with a switch labeled something like "do not touch". Flicking the switch made the box open and finger poke out and flick the switch back then disappeared. It educated, was fun and kept it simple - a servo was as the most complicated part but it explained the various types etc.

Besides, my mummy told me "if you can't say something nice say nothing at all", which I think is good advice.

nwlaurie (author)rlove42014-09-29

Did you (rlove4) not notice the wink at the end of my comment then?

acoleman3 (author)2014-09-28

oh this is too funny.

Studio Egg (author)acoleman32014-09-28

We are very happy to hear it made you laugh!

johngriswold (author)2014-09-28

First of all, I love this - a machine to separate eggs. Way cooler than the soda bottle technique that has been floating around the internet of late.

But - and I mean this in an instructional way, but "penultimate" means next-to-last. It isn't a measurement of quality or how cool something is. I know, it looks like it should mean "the coolest thing ever", but it doesn't. I suspect you picked up the wrong definition from someone else who used it incorrectly. I'm trying, too, to prevent others from picking it up incorrectly from you.

Best regards,


I feel the same way about "travesty" and "literally", I tend to be called a nazi lol but I'm simply trying to be helpful! Don't give up :)

marhar (author)2014-09-28

I'm waiting for the motorized version! and +1 on chocolate mousse!

Studio Egg (author)marhar2014-09-28

Hi marhar! A motorized version would definitely be interesting to do, we will defiently consider it!

tjk1939 (author)2014-09-28

This must be an example of how Rube Goldberg got his start. A bit complicated to perform an utterly simple task. Nice job.

Studio Egg (author)tjk19392014-09-28

Hi tjk1939!

Yes, we were definitely drawn to making a delicate task such as egg separating more mechanical! We discussed how through mechanizing tasks, a delicate experience can be lost (such as separating an egg). Though, we recognized this and wanted to create a new whimsical experience with this kitchen device. Rube Goldberg, but also Chindogu was an inspiration and gave us a solid base to build our ideas off of. Thanks for your comment Studio Egg appriciates it a lot!

Nrgdragon (author)2014-09-28


Studio Egg (author)Nrgdragon2014-09-28

Thank you Nrgdragon, Studio Egg is happy that you like it!

baelza.bubba (author)2014-09-28

This appears to be a large piece of kit to devote precious kitchen bench space to. You need to provide instructions for a wheel mounted floating bench ... perhaps with a space for keeping chickens. I love the absurdity of the solution, it is wonderfully Goldbergian

lbrewer42 (author)2014-09-28

Wonderful Mechnism! Rube would be proud.

Suggestion for version II.

How about a horizontally mounted mechanism to hold the two bowls simultaneously. This would be mounted directly under the open end of the clear tube, and would allow one bowl at a time to be centered under this open end.

The egg would be cracked into (bowl 1) ... the one not under the tube. Assuming the sink plunger has an "at rest" position when not engaging the lever, the initial downward stroke rotates egg-filed bowl 1 under the tube opening and compresses the plunger. Movement of the plunger to above the "at rest" position not only pulls the yoke up, but would also rotate bowl 2 under the tube's opening. A release of the lever would return the mechanism to the "at rest" position again and the yolk would be deposited into bowl 2.

Bowl 1 is easily removed from the bowl holder since it is not under the tube. A pull on the lever once again rotates bowl 2 out from under the tube where it can be lifted from the holder.

brent55 (author)2014-09-28

try using a coke bottle. just squeeze it and let it go when you touch the yolk. it works great and its free

Helder4u (author)brent552014-09-28

As usual, the easyiest is best. I like Your reply :)

fixfireleo (author)2014-09-28

one, you can do this easily with your bare hands but 2, if you wanted a "contraption", couldnt you just get a turkey baster with a good seal and cut the tapered end off?

alganon (author)2014-09-28

Only those that can do simple things well can do complicated things at all . I find that most complicated things are just a collection of well done simple things , playing nicely together .

Well done .

kitemancake (author)2014-09-28

While I can see the funny side of this, what I do see is an enormous waste of time and effort producing what I hope is just a prototype. I think the inventive minds who produced this could turn their attention to more useful concepts. It would have been a lot easier to create just a graphic representation of the concept. Sorry to be a spoilsport! Imagine taking this to the patents office.

BrianJewett (author)kitemancake2014-09-28

I think you're missing the concept of play and overlooking the fact that this is also a valuable experience at prototyping.

Mielameri (author)2014-09-23

This is nice and absurd, but could also be modified (as in, something to hold the lever in place while the yolk is in the tube, so that the bowls could be switched) for a one handed person to separate yolk and white. I feel a zen truism is in there somewhere...

Studio Egg (author)Mielameri2014-09-26

Hi Mielameri, thanks for your constructive comment. We will defiently take it into consideration!

abellefeuille (author)2014-09-24

This is a real "yolk"

Studio Egg (author)abellefeuille2014-09-26

Yolk. :)

CREATECRAFTANDLIVE (author)2014-09-25

LOL This is awesome! I used to do the same thing with a plastic water bottle, but this is so professional!

Thank you for your comment that means a lot to us!

Bard (author)2014-09-23

cool machine but how hard is it to clean?

Studio Egg (author)Bard2014-09-26

Hi Bard, the clear tubing and the threaded pipes can come off to be cleaned. The springs are also detachable and the bottom shelf which holds the plunger in place also comes off.

MorNuN (author)2014-09-23

The design looks great, but I would change some things:
1. The clear tubing could be a little longer and more flexible, with a handle attached at 8 inches from the end, so you could with one hand direct the end of the tube to the yolk.
2. The lever could be engineered to be in the side of the extraction place, and be positioned to do a forward-backward movement, it's more precise and less work for your muscles.
Great ible!!

Studio Egg (author)MorNuN2014-09-26

thanks for your sugestions!

halo99 (author)2014-09-23

It's so oddly professional looking.

Great job

Studio Egg (author)halo992014-09-26

Thank you so much halo99! We appreciate it!

wilgubeast (author)2014-09-24

Closing with the materials list is the Instructables equivalent of dropping the mic. Great photos, easy to follow directions, and Lauren needs a link. Great project, you guys.

grannyjones (author)2014-09-24

But wait! There's even more! LOL

Kafukai (author)2014-09-23

Cool idea! The engineering way to separate an egg yolk :-)

You've forgotten a chocolate mousse :-)

Studio Egg (author)Kafukai2014-09-23

Thank you aheibi! haha yes, you are right! chocolate mousse would be interesting to work with!

MicioGatta (author)2014-09-23

Lol, great!

Studio Egg (author)MicioGatta2014-09-23

glad to hear you like it MicioGatta!

kakashibatosi (author)2014-09-23

Challenge accepted! Oh wait, you can do the same thing with a soda bottle. Hmm....

I enjoyed your 'ible :)

I love this, very silly but awesome!

Thanks So Much! Glad to hear your thoughts!!

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