As a engineering consultant & manufacturing company we distinguish ourselves through the performance of our products. Friction hinges & rotary viscous dampers can be mocked up and simulated using imprecise components to achieve a mediocre performance curve.  We don’t take that road. In non mission-critical devices or one  cycle throw away devices that may be fine, but for performance much more engineering must be put into a product to get consistent, repeatable performance. Tight tolerances, testing and real world feedback generate information to develop a high performance product with satisfying results. High performance engineering materials and attention to detail are part of our culture and we take it seriously.  If you find a need for a high performance product at a reasonable cost, see us at www.mmtech.us . Ask about our 3d printing capabilities for your next prototype.