4 axis rotational cutting problem

[kilrabit]

Using the 4th axis rotary mill machining. I am trying to make a small crankshaft as a model, and trying to machine the journal. Everything works fine until the cutter needs to cut below the center of axis of the rotational part. I cannot get it to cut below the center of rotation, roughing or any type of finishing seems not to work.

[JOM]

It is not possible to mill past the axis of revolution in madCAM, but you can move the axis of revolution and create toolpaths from different rotational axes. The axis of revolution doesn't have to be the same as your 4th axis in your machine. I made a video showing how it works. Crankshaft video

Joakim

[kilrabit]

Thank you, I will give it a try.

Thank you for latest upgrade also, I know it took a lot of work.