A method for providing a model file to a user. The user acquires a plurality of images using a device, such as a smart phone, with at least a monocular image capture device. The plurality of images are then processed to provide the user with a model file. The model file is created by a minimization of an energy which is done using a primal-dual hybrid gradient. The model file may be used in a printer capable of printing in three dimensions. The user is either charged a fee for uploading the plurality of images, downloading the model file, or both.