When you want to build your own CNC machine, there are thousands of step-by-step plans and websites that offer information on how to do it. The only thing you have to decide is the type of CNC machine you want to make.
You can start by thinking about what you want the machine to do. As an example, you can build a small or large machine, it can do milling, routing, cutting or lathing, you can build it for a variety of different materials and you can use it for developing just about anything.
Most do it yourself information gives you pictures and step by step instructions as to how to start and complete your CNC machine. Although many people want to build a CNC machine from the bottom up you also have the option of using kits or modifying a regular machine you have to the CNC. As an example, you may have a lathe machine that you want to convert to CNC and all you will need to do is make a few extra steps.
Parts for making your own CNC machine are readily available from a variety of manufacturers. You also can find parts that are from other things. As an example, if you are building a milling machine you can use the motor from an old dot matrix computer if you can find it. You can scavenge parts from a lot of different places in order to make a functional CNC machine.
Also, there are blogs, forums and other information geared specifically toward the individual who wants to build their CNC machine. If you are a more hands on learner there are also a variety of videos that show you how to create a CNC machine.
In order to build your own CNC you will need to acquire the components that are right for your machine. As an example, the parts you need to build a milling machine will be different than those to build a foam cutter. So, you will want to know which type of machine you want to build before you begin.
The person who builds their own machine needs to know about circuitry, computers, programs and how to put machines together. All of this may be information that you already have especially if you have a job where you are working a CNC machine or if you have had a general interest hobby in making metal or other types of parts.
Many DIYers are people who are hobbyist. Many put together machines and then either sell the plans to others or put them on a website with pictures and step by step instructions. Usually the cost of the plans is under $40 and this includes detailed pictures.
The type of CNC machine you can build is only limited by your imagination. Most people concentrate on milling machines and router tables but you can also find plans for plasma cutters, foam cutters and lathes all with CNC adaptations. If you are a hobbyist you may consider the mini CNC machine because it is small enough to fit on a workbench or table top and runs through the use of your PC.