Ensure your linework and shading are second to none with the micro-pen, which further features a wireless battery and a Mass Your rotary tattoo machine. Critical Torque’s Pen machine is ...

The build began by plotting a circle with a pen onto a piece of paper. This evolved into printing a tool holder for a tattoo machine graciously provided by an amateur tattoo artist. Tests with ...

Then began a process of convincing the printer to ignore things like temperature and medium variables, before a few 2D pen sketches ... for the inclusion of a tattoo machine.