I have a problem with a Bike Friday but it is more of a general mechanical problem than a BF-specific problem so I thought I would ask here for herlp.
I am breaking down a Bike Friday folding bike frame for repainting.
a BF has two hinges and each of those hinges has a pin in the barrel which, if greased periodically will, to turn freely.
mine (new to me) evidently was not well maintained and neither pin would move.
after applying a great amount of heat (acetylene) and force (Arbor Press) one of the pins came free.
the other, so far is stuck fast.

here is what Sheldon Brown and John Allen say about Bike Friday hinge pins.
https://www.sheldonbrown.com/bike-friday-hinge.html

I am soaking the pin/barrel liberally and will continue to do so.

I thought about grinding off two flats on the exposed end that I could maybe grab in a vise or wrench but there is very little material there to work with

does anyone have suggestions for next steps.

So, Soak and Pray?