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DIY CNC Controller

Computer Numerical Control, or CNC, is the method used throughout industry for precision machining and manufacturing. By communicating with the tool through a series of binary values, the CNC controller is able to reliably reproduce a design every time, which is important when close tolerances must be met. As a hobbyist, you can enjoy a similar level of precision by creating your own CNC tool. However, this will require a CNC controller to operate the tool, and you can either buy one off the shelf or make your own, which is more satisfying to many hobbyists.

Things You'll Need

CNC controller kit
Computer with operating system installed
CNC controller software
Cable with appropriate connectors
Solder
Soldering iron
Needle-nose pliers
Wire cutters
Safety glasses

Instructions

- 1
  Review all instructions and account for all parts. It is very important to make sure you have everything to complete this project the first time.
- 2
  Plug in the soldering iron. Let it stand for a few minutes to bring it up to the operating temperature that's needed to melt the solder. Put on your safety glasses before beginning the assembly process.
- 3
  Place components into the circuit board and solder them. Some components may need their leads bent to the appropriate size so they can be secured into the circuit board, so use the needle-nose pliers for the task. Make permanent connections between the components and the circuit board traces with the solder and soldering iron. Once the solder joints have cooled, use the wire cutters to clip the component leads as close as possible to these solder joints. Unplug the soldering iron and let it cool when you are done.
- 4
  Install the CNC controller software. Follow the directions for installation for your specific software.
- 5
  Connect the CNC controller to the computer. Use the cable to connect between the two devices.
- 6
  Utilize the CNC controller. As per the directives of your specific CNC controller, connect the appropriate outputs to the devices you want it drive. Once you are ready to test the system, create a simple drawing file with the software and turn on the power to the CNC controller and all associated output devices to make the initial test run.

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