I would say it's pretty gentle. Most 3D printers these days perform very well out of the box, and there's tons of online stl files to print stuff and get a feel for your printer. After that designing your own things can be in any CAD tool or even a modeling tool like Blender. Fusion 360 is very approachable IMO. For prusa printers, prusaslicer is also serviceable for just putting some primitives together to make objects.
After that it's just tweaking stuff as you see things that can be improved. Since smaller objects can be printed relatively fast, it's super quick to see what tweaks do in the real world.
zparky|9 months ago