November 22, 2012 AT 5:00 am

Automatic Transmission Model by emmett #3dthursday

Emmett, who has long been one of my favorite designers on Thingiverse — along with Tony Buser and Michael Curry — has really outdone himself here: a working demonstration model of an automatic transmission! This video has to be seen to be believed.

A number of friends from the printing world have been dropping me notes this past week eager for a chance to print out this model for themselves — I’m hoping we’ll band together so I don’t have to print all of these parts on my own!

From Emmett Lalish’s project notes:

Have you ever wondered how an automatic transmission works? I did, so I looked it up and then designed this desktop model. It has six forward speeds and one reverse. Real automatic transmissions have a hydraulic or electrical system that engages different clutches and brakes to shift gears depending on the driving situation. With this model you control those simplified brakes and clutches yourself.

The clutch is actuated by sliding the drive shaft through to different positions (which each have two gear markings), while three separate brakes each also have two gear markings. You select a gear by engaging the brake and clutch position associated with your desired gear.

Read more.

TransmissionComplete

TransmissionSideview


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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has thrilled us at Adafruit with its passion and dedication to making solid objects from digital models. Recently, we have noticed that our community integrating electronics projects into 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you take considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless EL Wire and LED projects that are possible when you are modeling your projects!

The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you have a cool project you’ve made that joins the traditions of 3D printing and electronics, be sure to send it in to be featured here!

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