He kept the parts, but unlike most of us, he did something with them, building a neat little plotter called the Liplo. Most pen plotters work by moving the pen on two axes, but [Benjamin] took a ...

Learn more I’ve said it before, and I’ll say it again: everyone should have a pen in their everyday carry loadout. Yes, even ...

with which you can use your 3D printing pen to weld together the parts after printing them. The unit holds 1.75mm filament coiled under its own tension in a tidy package that doesn’t interfere ...