Here how I do it , and is kinda tedious (time eating like hell but worth it)
- Finding an main idea and other ideas that come in relation to it , it can happen random , or just looking around , even seeing a documentary can inspire looking at some old civilization thing , looking over the internet etc (I call this development phase )
- Research over the internet , google image search is pretty good at this , looking at 1000x images with same idea or in relation to it (I call this research phase and construction and fusion of ideas)
- Drawing initial finished ideas into a product on paper with pen just to see how the fuse together , if they fail -> I return to the development phase and start it over.
- Drawing the final product roughly taking in account with calipers the thickness and stuff / 3D modeling the real product ( I call it project phase / finishing phase.)
And last if the 3D modeling of the product looks not so nice , I keep the ideas a bit and start from development phase again , because the main idea can be bad or the other ideas bad , and need to cut some to make it better.
And ... if after all that the prototype lands not nice or how I want it to be , I'll start from development phase again or just ... start a new project. * Happened couple of times when I was learning how to do things up.
The main ideas can come from images , some news on tv etc Learning to find new ideas it is a skill that must be developed.
There are moment when I just "do it" ... but that comes from practice and that I have already done some stages inside of my mind.
This apply to designs that are premium , not on simple designs, because sometime I must take a break from that brain hitting process.
At start coffee was helpful , now I must cut it , I already think speedy without it.
I'm a visual thinker , but I think the process is similar with other thinkers , just the difference is that 1000x pictures become with something else. Like car designers look daily at car designs made in the past and other car designers work and so on.
Learning to draw and drawing is the fundamental skill I did not regret learning it. I could not be able to design without it.
It is only needed a medium level o learning to draw for the drawing phase.
Is always better to alternate between easy and complex projects , each product is a project from start finish.
Don't jump stages -> lands crap products instantly!