Markforged

Markforged builds cutting-edge cloud connected industrial 3D printers that produce parts 50x faster that are 23x stronger and 20x lower-cost. We print in composites and in metal. Our software stack includes Webapp - Express.js / AWS backend, AngularJS / WebGL frontend, Electron for optional desktop client, CoffeeScript; Computational geometry engine for part slicing - Written from scratch in CoffeeScript and C++; Printer touchscreen application - Node Webkit / AngularJS + Python; Printer firmware - embedded C on a custom board.