Material: PLA
layer height: 0.2
Shells: 3
Infill: 30%
Electronics:
Nema 17 with a Mechaduino controller, this is overkill but I had it on hand.
Magnets: These are also overkill and too powerful, I would find smaller magnets and redesign.
https://www.amazon.com/dp/B074BP1FR8/ref=cm_sw_em_r_mt_dp_SJ60WG2A4MDZK2ZNWKX5?_encoding=UTF8&psc=1
The author hasn't provided the model origin yet.