from instructions and scketches on pdf to 3D model

2D to 3D models in STL and OBJ files. YOUR GOAL is to build an object based on designs and instructions work guidelines: - 3 levels of difficulties of models to be built : basic / medium / advance - all models must be a closed mesh. - No intersection between parts in model. - All models will be delivered in STL and OBJ files, - OBJ files should be constructed in quad polygons whenever possible. - All models should be accompanied by a screenshot jpg file. - you will receive designs in batch of 4 basic or 3 medium or 2 advance - you get paid at the end of each batch - 2 quick rounds of revisions