On 2010-07-30, Pete C. wrote:

Ignoramus18915 wrote:

On 2010-07-30, Jon Elson wrote:
Ignoramus5687 wrote:


This meand that with normal right handed end mills, I would be better
off doing counterclockwise circular cuts when finishing inside circles?

Yes, you would do the interior of all pockets counterclockwise to climb
mill.

Very food idea.

I am realizing that CNC is easy in concept -- "the machine follows
instructions from computer" -- but it is complicated in practice.

i

The key difference with CNC is the lack of interactivity. You have to
plan everything out before the milling begins, unlike manual milling
where you can adapt your speeds and feeds as you go and also monitor the
surface finish and adapt as you get to the finish pass. The spindle
speed override and feed rate override knobs on a typical CNC control are
to allow the machine operator to optimize the process a bit from what
was coded in the G-code. The spindle load meters are also a very useful
item to have and I believe the VFDs all provide for a load meter output.

I think that my VFD does not do that. (current output)

i