WR1 V2 — 3D Printable AWD RC Rally Car

The WR1 V2 is a complete, all-wheel-drive RC rally chassis engineered from the ground up to be 3D printed at home. This digital download contains every STL and 3MF print file you need to go from spool to finished car.

The step-by-step build guide — instructions, part orientations, and print settings — lives on our website, not in the download, so it's always up to date. View it free or download it as a PDF anytime.

This is not a kit. There are no parts in a box. What you're buying is the design — engineered to be printed, assembled, and driven. Additional off-the-shelf hardware is required; the build guide includes a full shopping list with links to third-party sellers.

Version 2, built on a thousand builds

V2 exists because so many people printed, built, and drove V1 — and told us exactly what broke, what bound, and what could be better. Steering geometry, part orientations, and fastener fitment were all reworked from that crowdsourced feedback. When the design improves again, you get the updated files.

Every structural part is oriented so overhangs stay under 45 degrees, so the chassis prints with minimal or no supports on a standard FDM printer with a 180×180×180 mm bed.