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Rigamajig Basic Builder Kit

Rigamajig Basic Builder is a large-scale building kit that inspires hands-on free play and STEAM learning. Ideal for classrooms, children’s and science museums, libraries, community organizations, and maker spaces!
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Two children playing with the Rigamajig Basic Builder Kit.

Explore the entire Rigamajig product family!

Add-on Kits

Expand the capabilities and possibilities of your Rigamajig Basic Builder Kit with our Add-on Kits. There’s so much more to explore!

Simple Machines Add-On Kit

Limited time offer! The Simple Machines Add-On Kit enables young collaborators to mechanize their Rigamajig Basic Builder Kit, making simple or complex systems that exemplify the principles of mechanics, direction, and force. Created and designed from educators’ feedback, our Simple Machines Add-On Kit expands the Rigamajig Basic Builder Kit to provide an additional perspective and range of STEAM-based discovery, tinkering, and exploration! Prerequisite: Purchased Rigamajig Basic Builder Kit or any Basic Builder Workshop with Materials.
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Chutes Add-On Kit

Our Chutes Add-On Kit transforms your Rigamajig Basic Builder Kit into a dynamic system of chutes and ramps, allowing children to experiment with cause and effect, gravity, and systems thinking. Rube Goldberg in action! Children can create contraptions using assorted balls included in the kit, as well as marbles, wheels, water, or anything else they can find around. The exciting process of planning, collaborating, and building a ball or marble run just might become your favorite Rigamajig project! Prerequisite: Purchased Rigamajig Basic Builder Kit or any Basic Builder Workshop with Materials.
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Locomotion Add-On Kit

Expand your Rigamajig Basic Builder Kit with our Locomotion Add-On Kit to make rolling, spinning, mobile contraptions! Axles and axle bolts enable wheels, propellers, pinwheels, and more to spin freely, while swivel casters provide an immensely versatile range of motion. Our Locomotion Add-On Kit includes plenty of hex nuts to secure everything, and with eight long lengths of our soft, easy-untie rope, you’ll always have enough to pull, fasten, or practice knots. We can’t wait to see what you create! Prerequisite: Purchased Rigamajig Basic Builder Kit or any Basic Builder Workshop with Materials.
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Workshops

Workshops offer a convenient, practical, and fun storage and display option in easy-to-use, freestanding units. Perfect for schools, children’s and science museums, libraries, community organizations, and maker spaces!

Accessories

Find all your Rigamajig accessories here, including a Basic Builder cart cover, Rigamajig Jr. duffle, totes, aprons, and stools!

Rigamajig Cart Cover

Made of heavy-duty weatherproof canvas with a zipper for easy on and off, our cart cover keeps your Rigamajig Basic Builder Kit clean and protected in storage.
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Workshop Stools

These sturdy wooden stools are versatile beyond seating. They can become integral parts of Rigamajig's creations, adding an extra dimension to construction possibilities. Each stool features a clever central slot, allowing builders to securely hold planks while working. This design transforms the stool into a stable workstation, giving children better control as they manipulate parts and fasten connections. Additionally, the stools' height serves a dual purpose: it keeps adults comfortable while collaborating and allows children to safely reach higher levels of their growing structures.

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Canvas Buckets

These sturdy canvas buckets are a handy way to hold all your Rigamajig parts. Keep your loose parts organized and at your fingertips! Sold as a set of 6.
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Rigamajig Aprons

Use these rugged canvas Rigamajig aprons to hold bolts, nuts, and small parts of any Rigamajig kit. It’s a convenient and handy way to have the parts available at your fingertips! Fits children and adults. 
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Parts

Purchase additional or replacement parts for your Rigamajig Basic Builder Kit and Rigamajig Jr.

6" Wheels

Expand the capabilities of your Rigamajig Basic Builder or Workshop with these 6" Wheels. Sold as a set of 8.
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8" Wheels

Expand the capabilities of your Rigamajig Basic Builder Kit or Workshop with these 8" Wheels. Sold as a set of 8.
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Arc Planks

Expand the capabilities of your Rigamajig Basic Builder Kit or Workshop with these Arc Planks. Sold as a set of 4.
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Wingbolts + Nuts

Expand the capabilities of your Rigamajig Basic Builder Kit or Workshop and/or replace any lost or missing parts (it happens!) with these Wingbolts + Nuts. Sold as a set of 75 pairs.
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Brackets

Additional Brackets for your Rigamajig Basic Builder Kit or Workshop. Sold as a set of 30.
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Hooks

Additional Hooks for the entire Rigamajig product family. Sold as a set of three.
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S Hooks

Additional S Hooks for the entire Rigamajig product family. Sold as a set of two.
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Pulleys

Additional Pulleys are compatible with the entire Rigamajig product family. Sold as a set of two.
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Ropes

Additional Ropes for the entire Rigamajig product family. Sold as a set of two long and two short ropes.
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Rigamajig Jr. designed for play at home or on the go!

Rigamajig Jr. is a scaled-down version of our Basic Builder Kit and the perfect size for home use (...and great for schools too!). Ideal for hands-on free play in your living room, classroom, backyard, or the back seat, its handy storage duffle makes Rigamajig Jr. easy to put away and bring anywhere!
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A child playing with Rigamajig Jr.
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