CNC Built Stool | Build It | Ask This Old House

This Old House
947 193
Uploaded On 2018-02-12
Ask This Old House general contractor Tom Silva travels to a workshop in San Francisco to build a stool using computer-based tools.
SUBSCRIBE to This Old House:

1. When using computerized equipment, begin by designing the finished piece using a 3D CAD program.
2. A laser printer is often used for etching metal and glass, but it can also be used for making a physical model using plywood.
3. A 3D printer can prototype smaller sections of the design, like where two joints come together and how stock hardware interfaces with the 3D model.
4. A water jet uses a high-pressure stream of water mixed with garnet to cut the aluminum legs and base, including countersinks, mortises, and tenons.
5. A CNC router can mill the wood top using several different cutter heads.
6. The final assembly takes place by hand.

Tom visited Autodesk at Pier 9 ( The stool he built was based on a design by Matt Hutchinson, a designer at PATH (

About Build It:
This Old House general contractor Tom Silva, This Old House host Kevin O’Connor, and special guests including Jimmy DiResta, take you through step-by-step DIY projects in this popular video series. From end-tables to cutting boards to wine racks to chicken coops and more, learn how to build from the best pros in the game. Segments include mention of all tools and materials needed to get the job done.

About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we're ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.

Follow This Old House and Ask This Old House:

For more on This Old House and Ask This Old House, visit us at:

CNC Built Stool | Build It | Ask This Old House