Page 99 - Mastering SolidWorks

|
68 CHAPTER 3 Working With SketcheS and reference geometry

Perimeter Creation: To create a circle using this technique, you must select the Perimeter
Creation option from the Circle PropertyManager window after clicking the Circle tool. There
is also a separate Perimeter Creation toolbar button and a menu selection for Tools ➢ Sketch
Entities ➢ Perimeter Circle. This creates only tangent relations with other entities in the
current sketch; if you are building a circle from model edges or entities in other sketches, you
need to apply the relations manually. SolidWorks calls these functions perimeter creation.
Tangent to Two Entities: Start the circle with the cursor near one line in the sketch.
A Tangent symbol appears by the cursor with a yellow background. Click and drag the
diameter to the second tangent entity, where a similar cursor symbol should appear.
Release the mouse button and right-click the green checkmark icon. This process is shown
in Figure 3.5.
Tangent to Three Entities: Use the same process used for Tangent to Two Entities, but
omit the right-click of the green checkmark icon. After dropping on the second tangent,
drag again to the third tangent entity.

Figure 3.5
creating a circle

When you select the Centerpoint Arc tool, you can create arc by clicking the center, dragging
the radius, and then clicking and dragging the included angle of the arc. The first two steps are
exactly like those for the Center-Radius circle.