3.4.2 Positive Model Preparation

Definition: Additions and modifications to anatomical model prior to fabrication of the prosthesis/orthosis.

Code	Procedure	Description
1	Drying of positive model	Remove moisture e.g. oven, air dry, air blowing methods.
2	Barriers, sealants and separators	Application of a physical interface separating one surface from another.
3	Installing component blank(s), and/or componentry	Modify surface to accommodate expected componentry, install component blank(s). Hardware or interface that will later be replaced with definitive e.g. uprights, joints, electrode, valve, component blank(s) (dummies).
4	Wick application	Application of a material to facilitate the evacuation of air during vacuum moulding.
5	Pads / liners / spacers orientation	Any material(s) to be added before fabrication of the structure.  Attachment to the anatomical model only, fabrication of these interfaces occurs in part
6	Jig setup	Assembling componentry to a specific tool to establish/preserve alignment.
7	Componentry alignment	Any componentry to be added before fabrication of structure.
8	Protective material positioning	Protective material to allow removal without damaging elements underneath.
9	Reinforcement/ corrugation positioning	Application of material(s) to strengthen structure.
10	Trim lines	Establish borders of prosthesis/orthosis treatment.