The NASA 3D Resources website has posted hundreds of 3D models, images, textures and visualizations that you can download for free. As far as models, they’ve got everything from astronaut gloves and spacesuits to satellites and spacecraft:
Our team’s goal is to provide a one-stop shop for 3D models, images, textures, and visualizations. We offer these assets for your use, free and without copyright. We recognize that the site is only as good as its contributors and thank them kindly.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.