I am working on a Mighty inspired portable, with some improvements:
Swappable 18650s
Venty-like power profile (~140W at full charge and room temperature)
Dock-able for charging and pass-through
USB-C up to 3A charging
High amount of convective heat transfer
Uses S&B mouthpiece and capsules
It...
With help from Philiegram's photos, I've made some "back of the napkin" models for the convective heat transfer for the Venty vs Mighty.
Interestingly, the Mighty is actually more efficient than the Venty at convection. See:
In this model, a Mighty-like heat exchanger (black) is compared to...