Tinkercad is a great 3D design environment for artists. For engineering, it’s limited too kit will get in the way fairly quickly. But when I design robots, rocketship and game pieces, it is my go-to platform. It’s intuitive, quick and browser-based. And, it’s completely free. A gift to the Maker and STEM community from AutoDesk.
Here’s Spaceship 1. Took about an hour or so to design using the primitives and custom shapes available in Tinkercad. And next to it is the print that came out of my Monoprice Mini Delta 3D printer. I use a filament called Inland PLA+, available from MicroCenter.