Is this an example of what backlash can do?

[Minnican]

Ok.... so had a day off yesterday but back today.....

I have changed and rechanged every setting I can find without any change in performance but finally I changed the "step pulse" to 10 and the "dir pulse" to 15 for each of the axises. The whole mill now sounds sweet without the "grinding" noises I had experienced from day 1. It actually sounds like other mills I have seen on Youtube etc.

I've run the top half of the sphere again and this is the result......



Note my cutter seems to get very close to the sphere on the roughing toolpath, this was something I didn't expect and a potential problem, I presume this is solved using longer cutters?

Thanks for all the advice...... I've learnt much following all your suggestions....... and above all found a cure for this problem.