During the design process, I made use of 4 3-D printed links as well as 5 3-D printed pins that allowed a press fit to attach links together. For the ground linkage, I used plywood and two wooden rails to guide the slider, as well as a 3-D printed base that one of the pins sat in to allow for rotation without moving the input link. For ease of use, I also 3-D printed a handle that attached to the input pin and allows the user to simply rotate it between toggle positions. Pictures of my CAD are shown below as well as the handle piece and free links and pins.
For the lengths of the links, I created the input length to be 3.5", the sliding link to be 7", the coupler link to be 6", and the slider to be a 1.5" x 2" rectangle. The holes were .75" diameter and the pins were .725" diameter to allow for enough space to be inserted and account for errors in printing. These lengths resulted in me creating a modified assembly than the original diagram, however, the quick return was still achieved as well as the anticipated range of motion, which is detailed on the next page.