Re: Text Engraving - backplotting?

Hi Ray,

BMP2CNC is a program I need to get around to! So many projects, so
little time. I did manage to get system coordinates working in my
controller project, thanks to yours and Hoyt's help. And I keep looking
at tool radius compensation. The RS274/NGC interpreter documents are a
great help! I was just re-reading it last night, and it details the
computational layers of the program quite well! I even peeked at the
"block" data types, and cleared up a confusion I had on one of the
"words".

Alan KM6VV
P.S. "Reverse annotation" might be another way to describe the backplot
operation, it's a similar process (schematic to/from netlist, etc.).

Ray Henry wrote:

>
> You got it, Alan.
>
> There is a slightly more generalized use which is to show what the motion
> commanded by a g-code file looks like before it is run. Last time I
> checked, there were quite a few of these available from the web.
>
> The EMC backplotter will only work with the EMC because it uses the
> "real" interpreter and "pretend" motion from the motion controller.
>
> At NAMES last year, Fred Smith demonstrated a backplot with one of his
> programs. It was of a g-code file made by Matt Shaver's bmp2cnc of a
> still that Steve Stallings took with his digicam. I was impressed.
>
> Ray
>
> > Â Â From: Alan Marconett KM6VV <KM6VV@...>
> > Subject: Re: Text Engraving - backplotting?
> >
> > Hi Ralph,
> >
> > I hope I used "backplotting" correctly! Â I mean to import one or more
> > Gcode files into a CAD/CAM program (like several lines of text), and
> > then generate new Gcode.
> >
> > Vector CAD/CAM calls it "BackPlot".
> >
> > Alan  KM6VV