Re: CNC PRO

Tim Goldstein wrote:

> From: "Tim Goldstein" <timg@...>
>
> > From: Jon Anderson <janders@...>
> > Subroutines are great for multiple part fixturing. My dad and I both do
> > this, and it's a lot easier to make changes to the subroutine than to
> > have to make the same change 6 or 8 places in the program. Less editing
> > = less chance for typos.
> > (missing or misplaced decimal points can wreak havoc...)
>
> If I remember correctly, Jon Elson or Matt Shaver was telling me there is a
> g-code that you can use to run the same program repeated a number of times
> for the same purpose.

There are 10 work offsets built into EMC. (And, this was copied from an
Allen-Bradley system, so many machines use this mechanism.) You can
preset the part pallets from a home position, and then as long as the pallets
aren't moved, you never need to reset these coordinates. You just call up
the offset desired with one command, and run the program, and it will
do the toolpath referenced to the desired fixture location.

Some machines have parameters and 'programming features' added to the
basic RS-274D (G-code command set) to allow you to give a command
like "do program X from I=1 to 10", but EMC as it stands doesn't have these
features (at least it didn't last time I looked).

Jon