Online tools

List of helpful online tools for building

• Various model generators: https://www.plotz.co.uk
• Good circle/oval generator. Use thick variant for vacuum-safe geometry: https://donatstudios.com/PixelCircleGenerator
• Sphere (and other 3D shapes) generator: http://oranj.io/blog/VoxelSphereGenerator
• 3D model voxelizer: https://drububu.com/miscellaneous/voxelizer