The model is a part of the LMU-Klimakoffer (CC-BY-NC-SA 4.0) for the activity 'Tipping Points'.
Link: https://klimawandel-schule.de/de/der-lmu-klimakoffer
Print:
4 rods
16 nuts
2 sidewalls
For better reading of the numbers, you can do a color swap when printing the sidewalls.
Mount the assembled scale onto a 4 mm axle and put weights on one end.
Instructions for the experiment can be found here:
https://klimawandel-schule.de/de/experiment/aktivitaet-11-kipppunkte-wenn-das-klima-kippt
The author marked this model as their own original creation.