Reviving HP7470a Pen Plotter Part 1: First Tests + Pen Refurbishing
Channel: Devlin Macpherson
Date: 2023-11-04

Join me as I try to bring this HP7470a Pen plotter into the modern era! In part 1, I turn it on, learn how it moves, and refill the dried up pen cartridge it came with.

Link to inspiration for pen refurbishment: 
https://www.youtube.com/watch?v=h-oj4HrTH14&t=184s&ab_channel=CuriousMarc

0:00 Intro
0:48 Plotter Features
1:55 Testing, Testing
3:20 Fixing the pen
8:24 Next Steps