How to teak a part design in SW and manufacturing it using CNC
There are many shops on the internet who are readily available to machine one part at a time instead of making a large number. Contact a machine shop and find out what file type that need as some can use a SW file and some need a STEP or IGES. Having a part made is very easy these days.
If you have access to a CNC machine yourself, you will need to look into programs like SolidCAM, and concepts such as "G-Code". It is possible to learn and apply these tools yourself, and if you get it working (and are lucky enough to have CNC machinery on-demand), you can save some time and money by transferring the designs yourself.