Systems and methods for using native references in custom object design

A method comprising:

• performing a first scan, with at least a first scanner, of an interior shape of a cavity, the first scan of the interior shape comprising:
• detecting, at a detector, light comprising a first optical wavelength and a second optical wavelength the detected light generated by at least one of:
• detecting structured light generated from a pattern imprinted on an interior surface of an inflatable membrane;
• or
• emitting, by an emitter, structured light to form a pattern on the interior surface of the inflatable membrane conforming to an interior shape of an ear and the detected light generated by reflection of the structured light from the interior surface;
• actuating, between an extended position and a retracted position, a scanning tip, the scanning tip comprising the emitter and the detector and the scanning tip being actuated during the generation and detection of the light;
• and
• generating, at a processor, a first electronic representation of the interior shape, the generating being based at least on the detected structured light;
• performing a second scan of a second shape proximate to the cavity, the second scan of the second shape generates a second electronic representation of the second shape;
• identifying, based at least on the second electronic representation, one or more native references within the interior shape and the second shape;
• generating, at a design computer, based at least on the one or more native references, a combined electronic representation comprising the first electronic representation and the second electronic representation;
• and
• modifying, at the design computer, the combined electronic representation into a three-dimensional shape corresponding to at least a portion of the interior shape.