Question regarding cutting conditions / machine setup / system feeds

[tlharris]

This isn't a showstopper, just an annoying thing that I've been trying to resolve.

I have an older Isel 3-axis router. It's not fancy. It drives a PC router for the spindle, and I leave it set typically at 10k rpm. My machine wants to cut at 140ipm or less.

Now the question is, where/how can I set that up in my config file, so that the system feeds and speeds uses the 10k rpm and the .008 feed per tooth that I usually use to calculate feed speed. Every operation I program, the system feeds wants to run @ 2505.7 rpm.

Is there a trick to using SFM that I should just accept? If I run 500SFM, and a tooth feed of .007", than the system feeds wants to run at 2505 rpm, and 106 in/min, which is fine, but it's not right.

Any insight / education appreciated.
Thanks in advance.

[aldepoalo]

you could increase you sfm and chip load to get the numbers you want. but my guess is you are cutting wood foam or plastic.....

so what I would do is either set the speeds and feeds for my cutter and save it in the library using manual speeds and feeds. or I would save and load features that I would default tool size doc woc etc.... this way they always come up with what I know works.

On wood your sfm could be like 2000 or 3000 easy...

[aldepoalo]

you could increase you sgml and chip load to get the numbers you want. but my guess is you are cutting wood foam or plastic.....

so what I would do is either set the speeds and feeds for my cutter and save it in the library using manual speeds and feeds. or I would save and load features that I would default tool size doc wick etc.... this way they always come up with what I know works.

[tlharris]

Thanks, Al.

That's exactly the workflow step I was looking for.
And it was completely obvious, as soon as you told me!