CuraEngine is a powerful, fast and robust engine for processing 3D models into 3D printing instruction for Ultimaker and other GCode based 3D printers. It is part of the larger open source project called "Cura".
As ANET does not provide a firmware to their "open-source" delta-printer, I decided to create my own. This is compatible with the standard ANET A4 printer, without any modifications. It's currently based on Marlin 1.1.8