Some toys are timeless. From monster trucks that power over boulders to speed demons that clock 70 miles per hour, RC cars can thrill anyone who gets a controller in their hand for hours on end.

If you’re into 3D printable stuff, or into remote-control cars, then the OpenRC Project is for you. A gentleman in Sweden named Daniel Norée is sharing his progress on a 3D-printed Truggy, as well as ...