Dragline Crawler Build

[Rvjimd]

I have been out of the shop for awhile but before I left I DID get the pads all finished and started assembly. I wanted to check my pitch and it is close but I am going to have to turn a few more tumblers to get one perfect. I used the rotary table to hold and drill a bolt circle and simply used brass tube to check the diameter and pitch match between the pads and the tumbler. Here is a picture to show my first test tumbler. If anyone has tips or info on this type of thing I am all ears, I am not a machinist, engineer or designer. I'm just trying things until it looks okay and works reasonably well... (Tom, I hope you are reading this... )



Jim