Re: [CAD_CAM_EDM_DRO] Re: Measuring accuracy

> DeskCNC does not have a single stepover for finish. It has 2, X
> direction and Y directino, one is step over and one is step along,
> you pick which. A .25 Z step means that you are cutting the entire
> region at .25mm depth planes. No wonder you thought the program took
> a long time. Your Z step should be = to you total model depth, thus
> taking ONE pass instead of thousands.

This is so obviously mentioned in the included the manual. Also
mentioned is how to use these features. Actually the manual sucks. All
of the demos use relatively coarse settings, obviously to shorten CPU
time, and they don't tell you what realistic settings for accuracy are.
The software seemed intuitive to me but in fact, it's not. Now, I see
where the issues are with time and finish. All of my problems relate to
these settings.

> Right tool #1...............
> Right Tool #2...............
> Right Tool #3...............

Here is my plan, tell me if I'm wrong. Increase the resolution of the
STL file. The square stock is to hold the part so that the top and
bottom can be cut in two operations. Make a model without pockets(the
center recesses) to skip these steps which the software can't handle
well. Write the code to cut these areas. I could care less if the area
between the blades is accurate or not as it will all end up as chips.

I guess I don't have much of a choice without putting in quite a bit of
effort to use a G02 to finish the outside of the round hub portion of
the part. One option would be to make this oversize in the model to
allow for separate hand coded finishing. With what I know now it may
not be necessary.

Things look fine now.

Thank you, for your replies Fred.

Where does one purchase bull nose endmills in small sizes, .25", .125"?

Greg