A jig to perform tasks on a workpiece and accompanying systems, apparatus, and methods using same

A jig for providing a position reference for an image-based positioning system, the jig comprising:

• a plate, wherein
• the plate comprises a region to provide access to a workpiece during use, at least a first portion of the plate rests on the workpiece during use,
• the plate comprises one or more features on a second portion of the plate, each feature of the one or more features having an attribute to permit identification of the corresponding feature relative to the other features,
• the plate comprises a first element to permit alignment of the plate relative to a first plane associated with an edge of the workpiece, the first element has a thickness, in a first state of the first element, that is less than or equal to a thickness of the plate, and
• the plate comprises a second element to permit alignment of the plate relative to a second plane associated with a second edge of the workpiece when used in combination with the first element, the second plane is not parallel to the first plane, the second element has a thickness, in a first state of the second element, that is less than or equal to the plate thickness.