line used in geometric methods for lastmaking to draw the heel seats of insole shapes
For modern, asymmetric lasts, the heel line is rarely if ever parallel or identical to the length line or forepart line.
Also Known As: Heel Line of Symmetry, Heel Axis
line used in geometric methods for lastmaking to draw the heel seats of insole shapes
For modern, asymmetric lasts, the heel line is rarely if ever parallel or identical to the length line or forepart line.