Peaucellier Straight Line Linkage

by JonHollander, published

Peaucellier Straight Line Linkage by JonHollander Jan 1, 2013

Featured Thing!

1 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps


Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag


Thing Statistics

14146Views 2529Downloads Found in Models


The Peaucellier linkage transforms a rotary input motion into an exact straight line output motion.

During the Industrial Revolution, mechanisms for transforming rotary motion into linear motion were an area of intense research. Applications for these mechanisms included guiding pistons of the early steam engines and manufacturing precision parts.

The first attempts to solve this problem included Watt's linkage, which only approximates a straight line, and the Sarrus linkage, which does not operate in a single plane.

The Peaucellier linkage generates a perfect straight line by geometrically inverting a circular curve.

Upon seeing a model of this mechanism, Lord Kelvin is reported to have claimed that "it is the most beautiful thing I have ever seen in my life."

A detailed history and explanation of this linkage can be found at: http://en.wikipedia.org/wiki/Peaucellier%E2%80%93Lipkin_linkage


Print the following set of parts:

1 x Base Platform
1 x Base Upright
5 x Medium Arms
2 x Long Arms
4 x Long Pins
3 x Short Pins

Assemble as shown in the images using the pins.

If you wish to change the dimensions of the links, the distance between the centers of the uprights must be equal to the distance between the hole centers of the input rotary arm for the linkage to work correctly.

More from Models

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

The instructions should say 4 short pins and 4 long pins. What is this used for? After printing it.... I'm asking myself, why did I print this. It doesn't appear to have any motion like I thought it would

It's cool, but I don't understand how it would be connected to a spinning wheel/gear to drive it. It seems to be operated as a pendulum.

You can use a motor and a pear-shaped cam to move the center arm in a rocking motion. The output will oscillate along a straight line.

The nifty thing about the design is that the action needed to drive it is so simple (pushing the pendulum) you can do it lots of different ways. For instance, a way to attach a motor might be with a wheel and rod setup like you use to drive a piston (http://www.thingiverse.com/thing:10494 ). Or you could do something extremely simple like attach a little sail to it and let the wind blow it back and forth. There are millions of possibilities.

single cylinder engine