Parts that really fit
Boards, motors, bearings and fasteners measured from their makers' own CAD, joined hole to hole.
Build with real parts, in your browser.
ReDo is a 3D editor for assemblies made of parts you can buy: place them from the Inventory, join them hole to hole, wire them, and print the instructions for building it.
Try BetaFree while in beta. No account needed to try it.
Electronics
Seat modules on breadboards and headers, and wire them contact to contact.
Designer
Write a part of your own in OpenSCAD, by hand or with the assistant, and place it like any other.
Building Instructions
Turn an assembly into step-by-step instructions you can print.
Render
Light the scene and render a picture of what you built.
An assistant
Ask it to find, place and connect parts for you; every step it takes can be undone.
An Inventory of real parts
Over 850 parts you can buy: boards, sensors, motors, wheels, bearings and fasteners. Most are built from their makers' own CAD, with every hole, shaft and pin measured, so parts join where the real ones do.
And LEGO® Technic, CyberBrick and the everyday components between them.
Start from a project
Community projects
See what people are building with ReDo: every public project, newest first, with its parts list and how it is made. Open one in the Playground, or duplicate it and make it your own.
Browse community projectsPlans
Free, Basic and Professional plans are on their way. Until then, an account is free and keeps your projects.
Compare plans