3 Jaw Autocenter Lathe Chuck

thingiverse

This plate was an adaptation of the Chinese K11-80 plate for printing. The original plans of the K11-80 were extracted from GrabCad. When a metal piece originally desires to be functionally suitable for 3D, many structural changes must be made. In this initial version, forces were compensated to ensure the plate's traction and prevent reliance on the cohesion between layers. For this purpose, M6 screws are used to hold the plate, assisted by M4 screws that secure the gears. It was printed in ABS 0.21 layer thickness, with six perimeters, six roof tops, and six bottom infill at 45%. It does not require supports. The complex parts are the helix and the gears, both printed in high-strength nylon 12. The gears on the axis use a metal M4 screw. The piece behaves well, although the grip of the jaws is not valid for a standard lathe, but it serves for wood and plastics. The centering will depend on the quality of printing of its components. See another plate with four jaws also published.