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It's a steep learning curve, but like anything you commit your time too you'll eventually "get it" and get good at it.

The best and worst advice I can give it "build your own" 3D printer as you'll learn everything from the ground up; however it means jumping in at the deep end.

My favourite youtuber is this chap: https://www.youtube.com/channel/UCb8Rde3uRL1ohROUVg46h1A

OK. Thanks ;)