In this article of Mechanical Base, we will show you how to draw arcs by selecting three points from sketching plane or surface with 3 Point Arc command in Solidworks. Solidworks has bunch of other arc drawing tools to draw arcs efficiently. Arcs are very important sketch feature to obtain desired 3D geometry in Solidworks.
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To draw this kind of arc in Solidworks sketching, click on little pop-up menu as shown by blue arrow above then click on 3 Point Arc command as in blue box above.
After entering to the 3 Point Arc command in Solidworks, select a proper plane or feature surface to draw an arc.
After entering to the 3 Point Arc command in Solidworks, click to select the first point of the arc as shown by blue arrow above. The L = 71.54 shows the arc length value according to your cursor location. This arc length value shows the distance between starting point and the ending point if three point arc in Solidworks sketching.
We selected the first point as shown by blue arrow then seelcted the second point as shown by green arrow in 3 Point Arc. The third point will be selected in the arc itself to determine its curvature. You need to place your cursor according to this in Solidworks sketching.
The arc is created as above with 3 Point Arc command in Solidworks sketching.
You can click on For Construction option as in red box, that will turns the created arc into dashed line sketch as shown by red arrow above in Solidworks sketching.
You can also enter the parameters of 3 Point Arc. You can enter the centerpoint, start and end points as shown in green box, also you can enter the angle value and radius of the arc from red box above.
Drawing arcs with 3 Point Arc in Solidworks sketching is very easy like that.
You can find other arc drawing methods in Solidworks. Click the link then see all of them!