Magnetohydrodynamic jetting of metal alloys on sloped surfaces

A method of additive manufacturing, comprising:

• providing a workpiece, the workpiece defining an uphill local surface and a downhill local surface;
• moving a printhead relative to the workpiece in a process direction, over the uphill local surface and the downhill local surface;
• determining a local slope of a local surface of the workpiece;
• determining a spatial resolution for jetting liquid material onto the local surface, as a function of the determined local slope;
• and
• jetting liquid material onto the local surface at the determined spatial resolution.

A method of additive manufacturing, comprising:

• providing a workpiece, the workpiece comprising a polymer, the workpiece defining an uphill local surface and a downhill local surface;
• moving a printhead relative to the workpiece in a process direction, over the uphill local surface and the downhill local surface;
• determining a downhill local slope of a downhill local surface of the workpiece;
• jetting liquid material from the moving printhead onto the workpiece, the liquid material comprising at least one of aluminum and copper;
• and
• refraining from jetting liquid material from the moving printhead onto the downhill local surface of the workpiece, if the downhill local slope exceeds a predetermined limit.