Something tells me you didn't open the posted link.
bradrn 1 hours ago [-]
In fact, I believe that the article is describing a reinvention of this technique! Just with a plotter on oil rather than a compass on plastic.
dejobaan 2 hours ago [-]
This is "old Internet" style fun territory (along the same lines as the Tom7 fun, if not quite as deep). I felt that the olive oil + fingerprint + phone screen was a really nice way to illustrate the core concept. Especially clever because it used something common and annoying to help describe how the plotter does its thing.
TacticalCoder 2 hours ago [-]
There are very few TFAs I upvotes before opening TFA. But with such a title, this is one of them...
Maybe could swap out the pen for a needle?