Mechanical Dotted Line Pen

A 3D printed drafting dotting instrument inspired by classic mechanical drafting tools. The tool creates dashed and patterned lines by lifting the pen from the paper using interchangeable cam wheels. It can hold different pens or pencils, but works best with smooth-flowing pens. Two cam wheels are included: one for equal dashed lines and one for a long-short pattern. I also included a STEP template for the cam wheel, so you can design and test your own line patterns.