Here is my little part of the CNC world.
I have a few things here that you might like to look at and some G-Code that you can download.
All G-Code is tested to run on an EMC System. Here is a video of my CNC with Auto-Changer. .
June 4, 2010
Here is the the G-Code to make a wooden wheel. The wheel diameter is approx. 3.3 inches, and 1/2 inch thick. This is just something that I was using to test my CNC machine. Put an axel in it and make a spinning top.
June 29, 2010
G-Code to make a Stepper controller circuit board.
Make your own
L6203/L297 Bi-polar Stepper Driver.
Here is the the G-Code to make a stepper driver pc board.
This is what I used to make drivers for my CNC controller. It uses the L6203 5-Amp driver chips and the L297 sequencer. This will cut all traces and drill holes for all components, even the large mounting holes - with a 1/32 endmill cutter. The finished single sided PC board measures 4 inches square.
This is a zipped file that includes :
The G-code (optimized)
A parts list with suppliers
Parts placement diagrams.
Pictures of a finished board
A brief description of setup and use
Nov 8, 2010
G-Code to make a Parallel Port Interface circuit board.
Use this board to connect your stepper controllers to your computer. This circuit board has connections for 4 stepper driver boards. It can be configured to slave two motors together and has a 10 amp relay for spindle control. It also has provision for a motor enable signal. This is also a part of my own CNC controller. All I/O signals are buffered with 74LS14 inverters. This circuit also includes a 5VDC power supply that feeds the stepper drivers.
The finished board size is 5-1/2 x 3-5/16, single sided.