compatible 3d printer and laser engraving machine

kossel is a compatible printer and laser engraving machine 3d multipurpose model, he used 1515 European standard aluminum composition, as long as the few types of non-standard components (four kinds), you can achieve 3d printer has a laser engraving machine functions . And the price is very low, I have assembled a prototype, will publish a detailed list of materials and production methods in the follow-up! ! !