CNC G-Code Interpreter using Processing

Hi guys, for years I'm trying to make my own CNC router so I can make PCB easier.

What I'm trying to make is a G code interpreter who can sends signals to an arduino board. So the arduino board can control a simple CNC router to draw a circuit over a PCB.

I hope this project inspirer some peoples to support, improve, and make this things gonna real.

Any suggestions, comments, bug, improvement, please send to me.

Step 1 The Processing code.

The code is real simple. I generate an G file in Eagle Layout editor. Read this file in processing. And I move, or Draw, the lines.

On the next step I will shoe how to generate the G file, and use my code to draw the PCB on screen.

The file named as 12.txt is a G file to use as example.

The file named as "motor shield" is a example already routed on the eagle. You just need to generate the G-file.

The file named as "teste" is simple example already routed on the eagle. You just need to generate the G-file too.

Comments

[BANAELECTRONICO]

Hello!! greatproyect!!, i´m tryimg to download the cnc.pde file but it only downloads a temp file, can anybody helpme? my email is [e-mail] i´m tryin to do a 3d printer and router :)

[BANAELECTRONICO]

Hello Hello i make some variatios to the Code, and now ir works well, i got some trobles with the original one, there is my version, thank you Octaviusp :)


void setup()
{
size(1000,1000);
background(0);


}
int ESCALA = 2;
int offsetx=0,offsety=0;

void draw()
{
String lines[] = loadStrings("12.txt");
for(int i=3;i String[] strx = split(lines[i], 'X');
int[] x=int (split(strx[1],'Y'));
strx = split(strx[1],'Y');
int[] y=int (split(strx[1],'D'));
strx = split(strx[1],'D');
int[] d= int (split(strx[1],'*'));
println(x[0]);
println(y[0]);
println(d[0]);
if(d[0]==2) move((x[0]/100*ESCALA),(y[0]/100*ESCALA));
if(d[0]==1) anda(x[0]/100*ESCALA,y[0]/100*ESCALA);

}
}

void move(int x1,int y1){
println("move");
strokeWeight(5);
stroke(255);
point(x1,y1,0);
offsetx=x1;
offsety=y1;
println(x1);
println(y1);
println("fin move");
}

void anda(int x,int y){
int countx=offsetx,county=offsety;

smooth();
strokeWeight(2.0);
strokeCap(ROUND);
line(countx,county,x,y);
offsetx=x;
offsety=y;
}

[hondaman900]

Can you post your Processing code? The .PDE file is an Arduino sketch, and not the Processing code. Thanks, or please e-mail to [e-mail].

[otaviousp]

The file "cnc.pde" is the processing code. There is no Arduino sketch on this example yet.

[hondaman900]

But the cnc.pde uses non-Processing Arduino statements, and wants to include Stepper.h, which is an Arduino include. Also, #include is an Arduino-only statement. Processing uses "import". So I'm pretty sure it's not a Processing sketch and would love to see the Processing code.

Also, did you make further progress with this project since you built the Instructable?

Thanks in advance

[otaviousp]

void setup()
{

size(700,700);

}
int ESCALA = 2;
int offsetx=0,offsety=0;

void draw()
{
String lines[] = loadStrings("14.txt");

for(int i=3;i String[] strx = split(lines[i], 'X');
strx = split(strx[1],'Y');
String[] stry = split(strx[1],'D');
String[] D= split(stry[1],'*');

if(int(D[0])==2) move(int(strx[0])/100*ESCALA,int(stry[0])/100*ESCALA);
if(int(D[0])==1) anda(int(strx[0])/100*ESCALA,int(stry[0])/100*ESCALA);

}

while(true){
}
}

void move(int x,int y){
strokeWeight(5.0);
offsetx=x;
offsety=y;
println(" moveu");
//point(x,y);
}

void anda(int x,int y){
int countx=offsetx,county=offsety;

smooth();
strokeWeight(2.0);
strokeCap(ROUND);
line(countx,county,x,y);

offsetx=x;
offsety=y;
}

[otaviousp]

Just remove the commented part.

[Arduino Guy]

I am currently building a CNC machine and this is really helpful, but when will the arduino sketch be done? and has anyone done something similar? Thanks.

[oshondrom]

can you send me those files at [e-mail]
i love your project!

[ivansg]

Cool project!
Bom ver que é do brasil!
Quando terminar minha CNC, irei testar...
Abraço

[Grumpy Mike]

The CNC.pde code is no such thing it is just the standard Arduino example of follow a pot with a stepping motor code.

[otaviousp]

Actually my code is based on the Arduino example but with a graphic interface.

[marcos1971]

Ola parabéns pelo teu trabalho, mas download dos arquivos não funciona, se puderes por favor enviar para meu email. [e-mail]

abraço e obrigado

[BadWolf Corp]

file download ain't working
can you send me those files at
[e-mail] please
thanks

[otaviousp]

just try to rename the file you download.
anyway, I will send it t tou,
cya

[jeff-o]

So, is the goal to draw the circuit using an etch-resist pen on the board, or to run a mill that carves out everything BUT the traces? Just wondering. Someday I'll have a CNC machine of my own, too...

[otaviousp]

Im think using a PEN the same pen you use to draw the circuit on hand. The milling process is a little different, we have to drill on the edge of the trace. But, it can possible to do with a code modification.

[jeff-o]

Ah, ok. I'd definitely push for the cnc mill solution in that case...

[sammyBoy]

I've also been toying with CNC for a while and I was thinking of using my *duino as a control board. I'm going to have a play with your code over the week-end. Looks good, nice instructable.

[otaviousp]

nice, please let me know what you think about the code, and if it is possible to use it.