Why crowned pulleys and bandsaw wheels?

[tonyfoale]

Thanks Tony
Brilliant explanation.
As a lad I worked in an old brickworks with flat belts driving everything, I guess they sort of knew but without knowing exactly why.

Dan,
Glad you like it. My problem has always been that I have never been satisfied knowing that stuff happens, I have to know why. It has cost me a lot of sleep over the decades.

I had one of those bandsaws once and swapped it for an old motorbike my cousin had in boxes, here it is now (best deal I ever made).

Great deal obviously.