Abstract: A method for the additive manufacturing of an object and a system for manufacturing an object.

Abstract: A method for readjusting and interpolating a progress of an execution of multi-step program by a computing device involves a computation of a cumulative point baseline for each step of the multi-step program based on a completion time baseline for each step of the multi-step program, and a regulation of a progress indicator based on the cumulative point baseline and a completion time of each step of the multi-step program as executed by the computing device. The multi-program is an application program or operating program executable in steps by any type of computing device. The progress indicator can have any form, particularly the form of a progress bar.

Abstract: A magnetic holding device includes a hollow cylinder having an axis and closed ends. A rodless piston having an elongated radial cross-section is slidable within the cylinder for movement between the ends. At least one magnet is carried by the piston. The piston is driven back and forth in the cylinder by air pressure. The magnet is adapted to pick up a workpiece adjacent to one end of the cylinder when the piston is driven toward that end of the cylinder.