The cups look coated from the inside. Interesting but definitely not groundbreaking. I'm looking into printing with biopolymers using a syringe. I'ts interesting also because it needs way less power since no heat is needed.
I agee but also... They are just waaay too handy and unreplacable for many folks. So many peoples lives rely on these machines and taking them away would need dramatic change for those people.
Definitely try turning down the current on that motor.