1/2 Ton Amtrac Part 3: Walking Beam

Finally got my steel in so I started on the walking beam(s).

[@sgribb02]

Impressive work. Really enjoying your build.

[@mimimitchell1989]

Building something similar to your walking beams , they look very strong .

[@pinestumps8622]

Go with a large cross section round tubing for the beam material, this will hold up better than rectangular tubing for twisting forces from wheel loads.

[@mimimitchell1989]

Nice work and love the machine , How's the walking beams holding up , Wheels not trying to tow in .

[@pinestumps8622]

They twisted after three years of abuse, cambering the wheels a bit (see the teardown video). I operate my equipment hard like a cat D9, so if I went back to walking beams I would use a generous cross section round tubing to take the torsional stresses. As the saying goes, when in doubt build it stout (and then some for tracklayers)!

[@scottmorgan6030]

what size steel did you use for the axle in this video?