plotting is a huge amount of fun. i've built several large drawing machines [1], [2] and gotten some old HPGL plotters working including a Roland DXY-1150 and a HP DraftPro DXL (7575A)

I'm currently working on using brushes and paint pens in a CNC router table converted to holding pens. [3] [4]

Lots more plots here: [5]

I strongly recommend getting an Axidraw - it's great fun!

[1] https://www.youtube.com/watch?v=8rGjyPqcVbg

[2] https://www.youtube.com/watch?v=piKsTr9XfFU

[3] https://www.instagram.com/p/CAjLfOwJa5j/

[4] https://www.instagram.com/p/CApODjhpeIp/

[5] https://www.instagram.com/jodhus/

mitxela is one of the hidden gems of the internet. Another great project by him — there are so many! — are these earrings with an embedded ATtiny9. Really inspired me to get into hardware hacking.

Video: https://www.youtube.com/watch?v=Fzbg-BqIdJI Writeup: https://mitxela.com/projects/charliestar