Ring oscillator keychain - 0.2 mm nozzle

This keychain represents the circuit of a three stage ring oscillator based on PMOS. Since one of my collegues was defending her PhD thesis about an organic and printed ring oscillator, it was the perfect gift!

As you can see, on the back there's the space for a small text, in my case it was the initials of the Printed and Molecular Electronics group at the Italian Institute of Technology (https://pme.iit.it/), but you can modify it with whatever you want. If you don't want the text, I uploaded a version without the text. 

Pay attention to the nozzle size! This model is designed to be printed with a 0.2 mm nozzle!

Print it, test it, fix it, share it!