Part of Lesson Plan: Step-V Pulley Half Section, Isometric

Activity Overview / Details

With the completion of the upper and lower section outline, all straight line work is finished. What remains are the arcs joining the two outlines. These arcs are created from isometric circles that are then trimmed to the edges of the outlines.  To get started the student needs to get into the "right" isometric plane. The isometric circle is actually created by selecting the ELIPSE command and then typing “I” for ISOCIRCLE. The student is prompted to enter the circle’s center. This point can be found by extending a construction line from the appropriate point on the V-Groove outline to the axis of the pulley. The student is then prompted to complete the circle by selecting the endpoint of its radius. This should be the before mentioned appropriate point on the V-Groove outline.