Creating Three Points Arcs Using Limits

This task shows how to create a three point arc by starting creating the arc limits first. In this task, we will use the Sketch tools toolbar but, of course you can create this arc manually. For this, move the cursor to activate SmartPick and click as soon as you get what you wish.
By default, arc centers appear on the sketch and are associative. In case you create arcs by clicking, if you do not need them you can specify this in the Options dialog box.

To do so, go to Tools > Options, Mechanical Design > Sketcher option at the left of the dialog box (Sketcher tab).

  1. Click Three Point Arc Starting with Limits from the Profiles toolbar (Circle sub-toolbar).
    The Sketch tools toolbar will display one after the other values for defining the three points of the circle: values for defining the horizontal (H) and vertical (V), values for defining the arc start, end or second  points or else the radius of this arc.

  1. Position the cursor in the desired fields and key in the desired values.






Start Point (H: 25mm and V: 37mm)

End Point (H: 25mm and V: 7mm)

Second Point (R: 15.5mm)

  1. Drag the cursor and click to create the arc intermediate point (the point which the arc will go through).







The three point arc appears: