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Look here... if you understand something...
http://forum.arduino.cc/index.php?topic=208099

Hy all!
I create this cnc toy
https://www.youtube.com/watch?v=IKcUB0jPhMs
with this motor.276990
problem is when reverse rotation , the motor lost few steps...
I use grbl arduino...
But my...

http://youtu.be/gwifi2o-HYk?list=UUgZyZAxu2SkYqpyaNQ018Wg

Now I modified little gbrl code from arduino from here https://github.com/grbl/grbl (file stepper.c) and now can command directly my 5v unipolar steppers motors , but all functions is disables...work...

yes! english is not my first language, i'm from Romania an live in Italy!
My program of microcontroller can read only "A","B","C","D"... I created an program for computer and another from...

My program convert an image contour in coordonate pixel...
My program create a file with four characters :A,B,C,D is ecquivalent with:
A - movement 1 step forward axa X
B - movement 1 step...

I'm build this hobby cnc ,
https://www.youtube.com/watch?v=aIowblAp84w
and search g-code on internet and all g-code contain G02/G03 code.
I create an program can read G01 code only, for hobbysts...

An small substitute cad software... create myself!

https://www.youtube.com/watch?v=72Lh9KBRpdE&list=UUgZyZAxu2SkYqpyaNQ018Wg
Thanks!

I realize this program! what job would fit in ?
https://www.youtube.com/watch?v=72Lh9KBRpdE&list=UUgZyZAxu2SkYqpyaNQ018Wg
Thanks!

my new foam machine

https://www.youtube.com/watch?v=aIowblAp84w

Maybe this ? :banana:

https://www.youtube.com/watch?v=aIowblAp84w

Not needed G-code!!!
CNC using Paint Webcam Notepad easy software, polystyrene shapes - YouTube

Hi,
Thank you for your interest. This is a project that is in it's very beginig state (pre-alpha).

The main ideea of the program will be to draw outlines from the selected portion of the screen...

First I have made the software and afterwards I am going to make the cnc!

Steps to use:
1.Drag or resize the application window so that inner retangle show the image you want to capture
2. Click...

my cnc
http://costy35.ucoz.com/_si/0/s31673.jpg
http://costy35.ucoz.com/_si/0/s34707.jpg
http://costy35.ucoz.com/_si/0/s49553.jpg
silhouette bitmap
http://costy35.ucoz.com/2009.gif...

my cnc with 2 axe
driver with uln2003 or tranzistors.
commmand with parallel port (D0-D3 axe X,D4-D7 axe Y)
My first program transform any silhouette bitmap in cnc coordonate...
A,B,C,D >...

Srry but not speak and understand english bene :(
My cnc details...http://www.youtube.com/watch?v=8sNPNIzcO_g
And source code

My cnc follow dcc motors ,and couple infrared from a mouse.Nice and simple!
http://www.youtube.com/watch?v=ulXIAf7PQqY
Any comments?