I've bought the idea of getting an ergo keyboard for work, but it's too expensive to buy one from where I live, so the last days I've been learning and designing my own.
I know it won't be as good as a manufactured one but I really want to see how the result will be
CAD (cardboard aided design) is really powerful. You get to fail fast: figuring out things don't work before more expensive manufacturing steps (such as laser cutting).
And using inkscape is fine, but even better if you print it out and stick it to cardboard.