Have you ever tried to spin a spinal orthosis or transfemoral socket model with one hand while holding it in position and trying to tighten the pipe vise with the other hand only to have it slip out of position? The typical solution is to hit the lever arm with a hammer. However, just seconds later the process has to be repeated to reposition the model into a more optimal alignment for rectification. This scenario has frustrated me for years, but since an expensive automated carver is not in the budget for my rurally located, sole-practitioner practice, I wanted a pneumatic vise with a foot switch to simplify the task. I wanted to be able to put both hands on an oddly shaped piece of plaster with uneven weight distribution, position it where I needed it, and step on a switch to grab the mandrel securely.