Re: Need G Code help

Hi Ed

Run it without comp and watch the path. You have two sharp inside
corners that the tool can't fit into without gouging stuff that it thinks
you want to save. I'd number the lines so that you get a bit better
feedback in the terminal window you run it from.

comments in.

>    From: EdFanta <atex57@...>
> Subject: Need G Code help
>
>
> Got the mill up and running and have been getting used to EMC. The main
> reason for going to EMC was the cutter comp with G41 G42, that way I
> don't have to rewrite the code when I sharpen an endmill. Now I want to
> mill a pocket with radiused corners, the following is a bit of the code
> I have written along with the problems. I hope the formatting comes
> through.

> %
> m6t1    tool 1 is a 1/2 endmill
> g0x10y1     this is a starting hole already drilled
> g1z-.25
> g41d1y2
> g1x8.9y3.25

Here is the first offender. Depending upon the size of the tool, this
may be a hard inside corner after you have started tool offset. This
would need to make an arc, or an outside corner .

> g3x8.15y2.5r.75

This is an arc that is larger than the diameter of the tool but the way
it starts away from the previous line makes starting into it a hard
corner also.

HTH

Ray

> If I change the r.75 to r-.75 it will go with out a quibble but the
> back plot shows a loop instead of a radius.
> Any help appreciated, if you can point out my backwards thinking and
> explain the problem it would be a BIG help. TIA.  Ed.