I would be interested in a detailed “how to” thread on this! Dad has a wood splitter he no longer uses and I have a project coming up in the future that will require quite a bit of tubing bending and this would be ideal!!
Here would be a good place to start, Northern Tool tubing bender can be adapted over to work with the ram on your wood splitter.
I made my own version as I wanted to bend the pipes in a very specific way, stretching the outside radius of the the pipes for a smooth bend. VS crushing the inner radius of the bend like the Exhaust Bending machines do to get rid of the excess material on the inside radius of the turns.
I think back when we were building this stuff, we were "All In" on building these projects and extreamly motivated, tapping into the magic of the creative spirt. Motivated by cool things and having a great time, making magic happen. Lol . . .
Building those Dies was pretty unique, glad to be able to figure it out at the time.