Home     Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
   
 Home     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   

Author Topic: What is CNC and how it works?  (Read 6647 times)

0 Members and 1 Guest are viewing this topic.

5and1half

  • Guest
What is CNC and how it works?
« on: April 01, 2008, 09:34:39 AM »
I checked your forum around and found some topics about CNC. I google and saw these machines. Looks very impressive but what exactly they do? And how they work? ???

kam

  • Administrator
  • Hero Member
  • *****
  • Posts: 1849
Re: What is CNC and how it works?
« Reply #1 on: April 01, 2008, 23:24:35 PM »
spic0m... we wait... :-*

spic0m

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 841
Re: What is CNC and how it works?
« Reply #2 on: April 01, 2008, 23:37:22 PM »
Lol, i didn't see the topic, sorry  :-[  :-[

Anyway, the abbreviation CNC stands for Computer Numerical Control.
It means that a "controller" computer is used for controlling a machine tool via a programing language called G-code.
Satisfied mr. admin?  :D

kam

  • Administrator
  • Hero Member
  • *****
  • Posts: 1849
Re: What is CNC and how it works?
« Reply #3 on: April 01, 2008, 23:46:00 PM »
Yep! You cover me!

Sir 5and1half (what an id! Did you subscribe at 5:30 in the morning? :) )

spic0m

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 841
Re: What is CNC and how it works?
« Reply #4 on: April 01, 2008, 23:51:04 PM »
LOL  ;D  ;D  ;D

tpone

  • Guest
Re: What is CNC and how it works?
« Reply #5 on: April 03, 2008, 18:36:53 PM »
G-Code? What is this G-Code?

methos

  • Guest
Re: What is CNC and how it works?
« Reply #6 on: April 03, 2008, 19:37:46 PM »
It is a vector language to describe the movement of a cnc. I know that there is G1,G2,G3,G4 etc etc etc but i know nothing what these are  :(

spic0m

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 841
Re: What is CNC and how it works?
« Reply #7 on: April 03, 2008, 20:02:57 PM »
G's are what movement the machine will do, straight line, curve etc. etc., nowdays g-code programming replaced by pc programs that let you design visualy what you want to do and then translate it in g-codes and send it to the machine.

kam

  • Administrator
  • Hero Member
  • *****
  • Posts: 1849
Re: What is CNC and how it works?
« Reply #8 on: April 03, 2008, 22:52:43 PM »
Here are some G Codes:

G0 X Y:Go linear to X,Y position with max speed
G1 X Y Z F: Go linear to X,Y,Z position with speed F
G2 X Y Z R F : Go circular counter wise to X,Y,Z position with speed F and radius R
G3 X Y Z R F : Go circular counter clock wise to X,Y,Z position with speed F and radius R

These are the most basics. Further more there are a lot of G codes (also known as ISO codes).

SiEger

  • Guest
Re: What is CNC and how it works?
« Reply #9 on: April 03, 2008, 23:22:32 PM »
What are you really talking about boys? What is computer numerical control thing? What it controls? And what is the numerical? Give us a clue to understand...

kam

  • Administrator
  • Hero Member
  • *****
  • Posts: 1849
Re: What is CNC and how it works?
« Reply #10 on: April 04, 2008, 22:51:04 PM »
It could be a woodworking machinery.

You draw in a CAD/CAM program a drawing (like you would do with autocad) and then this program translates
your drawing into G-Codes (look above).

Those G-Codes are transfered to a controller. Imagine the controller as a set of servos (with very smooth digital motors) that can implement interpolation movements.

The machine will then use a router, a spindle, a something... to chisel the drawing onto an MDF panel (for instance)...
is this clear enough?

5and1half

  • Guest
Re: What is CNC and how it works?
« Reply #11 on: April 06, 2008, 11:28:51 AM »
Clear enough. Than you all.

tpone

  • Guest
Re: What is CNC and how it works?
« Reply #12 on: April 09, 2008, 23:56:08 PM »
Clear enough. Than you all.

Absolutely!