John Callies interview

[hoffman900]

https://youtu.be/npRdCfRdxns

I in particular loved his show n’ tell shelf. Especially that composite oil ring. Would love to know more about that.

[bob460]

One smart guy, that's for sure.

I liked the double wheel lifter and the conrod design.......cool stuff

[fabr]

I found that very interesting. Very.