Arduino mega cnc machine :-)

Let's Make Robots Robots
1

THIS IS MY CNC BALSA WOOD MACHINE.....

 

IT IS ARDUINO MEGA POWERED AND IT BEGAN CUTTING TODAY WITH A DREMEL....

I HAS A MODIFIED REPRAP FIRMWARE ON THE ARDUINO SIDE AND IT IS DRIVEN BY A JAVA APP ON MY PC...

I HAVE BEEN BUILDING THIS FOR ONE WEEK ALMOST 20 HOURS A DAY!!!!!!!

ALSO HAD TO MAKE MY OWN STEPPER DRIVERS WITH HBRIDGES AND THE ARDUINO´S TWO PIN CIRCUIT....

KNOW I WILL START WORKING ON THE Z AXIS REDESIGN TO HAVE A BETTER TOOL HOLDER

 

VERY SOON I WILL MAKE A VIDEO TO SHOW IT WORKING

 

HOPE YOU LIKE IT....

 

machine dissmised.... new one on the workshop.

 

 

 

 

DRAW, CUTS WOOD.

  • Control method: BY PC
  • CPU: Arduino Mega
  • Operating system: windows XP
  • Power source: 12 V FROM ATX
  • Programming language: Arduino C
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/arduino-mega-cnc-machine
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Z AXIS REDESIGN

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3

Very cool

very cool, I looked at your blog, but my spanish is extremely limited =P

I am just starting the planning for a similar CNC project, and ive been looking at how to drive the steppers with the arduino.

do you have a scematic for your stepper drivers?

are you using step genies or ucn5804b ?

 

–Maze

 

4

this is the driver i did,

bipolar_stepper_two_pins2.jpg

 

 

5

my code…

if you are interested in the arduino code enter here: https://sourceforge.net/projects/cncarduino/

 

it is a modified reprap code to drive 3 axis having steppers moved by hbridges…

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Stepper drivers

by the way, instead of using the L293D hbridge i used the SN754410NE with the same result… it seems like it´s common to find the L293B, so i don´t wanted to use it because it does not have the protecction diodes inside as the L293D or the one i am using.

 

My step motors are from Sparkfun.com and manage 2.6 kg/cm… 12 volts, 1.8 degree/step, 200 step/turn, 4800 step/inch on my array. they give me pretty good performance.

Made lots of tests on my machine for calibration and it draws a 1 inch sqare flawlessly, also made some circles and polygons to make the cnc work and produce the same thing i design on my computer…

 

 

7

great look, could you post
great look, could you post some video