Here are four blog for you. After reading them, you will find some answers.
https://www.elephant-cnc.com/blog/fi...ferent-metals/
https://www.elephant-cnc.com/blog/wh...ng-machine-do/
https://www.elephant-cnc.com/blog/3-...tting-machine/
https://www.elephant-cnc.com/blog/ac...15-best-ideas/