Fig. 1

Design of the model for evaluating deviation tolerances. (a) 3D perspective view of the model; (b) Side view of the model. The distance between the hemispherical cavity (A) and the outer surface (B) is 15 mm. The “C” displays the channel cavity; (c) Top view of the model. The “D” exhibits the cantilever for placing the fixture; (d) Back view of the model. The “E” demonstrates the groove reserved for placing the registration device. The “F” indicates the retention slot with the aid of silicone rubber