Quote Originally Posted by Robin Hewitt View Post
That might be simply because Jazz chose the tool, chose the material, built the machine and set it up.
Yes some of that is true Robin. It's simple really I have the Chip load dialled in correct for my machine and the material I'm cutting which is mainly 6082-T6 or Ecocast.

I could tell my cutting conditions but that won't mean much and chances are they won't work for other machines. Each machine has it's own resonant frequency or sweet spot and finding it is harder than the mystical G spot.!! . . . But when you do it's nearly has satisfying just without all the effort. .

I think Often people(Which I ounce was.!) are scared to cut deep and the noise puts them off but often it's exactly because they are cutting too shallow they can't find the sweet spot regards resonance and chipload.!

Put some ear plugs in and try cutting deeper and see what happens.? You may get a shock at how deep you can go and the finish you achieve. I always use full depth 0.2mm finish pass when finish is important so the deep roughing pass often doesn't matter.

The key and secret to cutting anything is Chipload and when done properly the heat will leave with the Chip. The Odd squirt is just that one blast at start to put a light film on oil cutter and depending on length of Job then maybe one half way thru.!! I certainly don't stand watching, like now it's cutting and I'm in the house.
Another very important thing regards Aluminium in particular is chip clearing, you must limit chip re-cutting to absolute minimum other wise the tool will heat up from rubbing and pounding cut chips into material.