Submarine card! This STEAM project card uses a four bar linkage to create its parallel movement. Made from corrugated card, card and brass fastener joints, this makes a great starting point for exploring four bar linkage mechanisms.

Dive! Dive! Dive!

Click the images to find out more – better yet, why not buy and membership and download this and all the other projects on the site for free! Sign up for Membership here.

Subscribe Now and Save!

Become a member for access to all the downloadable projects on!

Sign up below for unrestricted access to dozens and dozens of amazing paper projects. Find out more on the membership page.

Become a member of now to access dozen and dozens of amazing paper projects for free! is made possible entirely by the support of members and shoppers. I literally couldn’t run the site without you.

Thank you!

Find Out More Here…

Here are a few ways to follow on Social Media.

Twitter Instagram YouTube Facebook Pinterest

Broughton Moor
t. 01900 814333