We are using different “Maker” technology to produce easy and reliable parts e.g. for scale protototypes. Some we have already used like CNC or laser cutting for prototyping or we have this in minde for further designs. Here is a plain list with some perhaps usefull links:
There is a nice guide from 3dhubs
CNC machining: The Complete Engineering Guide | 3D Hubs
Selecting the right material for CNC machining
– I have used CNC machining for drilling holes in a an aluminium plate and in a plywood to mount a single point load cell on a wooden frame. There are some companies that provide CNC based miling services. Some also for non metal material.