Meet the Robosew! – “After seeing some computerized home embroidering/sewing machines in operation, we were intrigued. But they were priced in the range of a good multimedia PC system. We next happened upon a store where a large, costly embroidery system was in operation making large jacket designs. This was in the price range of a luxury car. We decided we’d have to try to make one much cheaper.
Our system lacks in speed and sophistication, but it was a challenge and we applied many of our varied skills to develop it. It uses a computer-operated stepper-motor controller which is connected to the printer port of a computer. The QBASIC computer language (in DOS 5) is used. Two stepper motors, a game port, a solid-state relay, a simple photocell eye and any sewing machine are the major parts. We chose to use two worm screws to move the embroidery hoop and artwork frame. Some mechanical and electrical handiwork was required. All parts except the precision worm screws and followers are common items.” [via] – Link.