Which of the following is not a major element of orthotic fabrication?

In the context of orthotic fabrication, the primary focus is on creating devices that support and align the foot and lower extremities. This involves several crucial steps. One significant aspect is taking foot impressions, which allows for a precise capture of the foot's shape and structure. Modifying positive foot models is also essential, as it involves altering the initial impression in order to accommodate specific anatomical and functional needs of the patient. Additionally, selecting appropriate materials is critical for ensuring the final orthotic device provides the necessary support, comfort, and durability.

While communicating with suppliers can be important for obtaining materials and components for orthotics, it is not a direct element of the fabrication process itself. Instead, it serves more as a logistical or administrative function that supports the fabrication process. Therefore, it does not belong in the category of major elements involved specifically in creating the orthotic devices.