﻿ Geometry | Arc

# Geometry | Arc

Command:

What to do:

 1 Edit a Part
 2 Click Add Arc - see image to the left.

Then do two 'Drags':

 3 Drag in the graphic-area to specify the Arc's start-Point and then its end-Point.

AND ALSO

 4 Drag again between the start-Point and end-Point of the Arc to define its radius.

'Drag': mouse-button-down [start-Point], move your mouse-pointer, mouse-button-up [end-Point].

The Arc is now in the graphic-area.

There are two ways to add the start-Point and end-Point of the Arc

 As you 'mouse-button-down, or mouse-button-up': Add start-Point or end-Point of the Arc as a 'Free Point' Later, add constraints and dimensions to position the start-Point and end-Point. See Also: How to Delete a Constraint - OR - Merge the centre-Point with a different Point Do this to construct a sketch-path. See also: Hover+Drag , merge-points.

Video:

How to Add an Arc: , the 'Hover Techniques'

Top tip:

Specify the Radius of the Arc before you add Constraints between its centre-Point and a Line or a Point.

Example

How:

Selection-Window

You must Drag Two times.

Refer to the image to the left:

 1 FIRST DRAG: from to to add the start-Point and end-Point of the Arc, then release you mouse.
 2 SECOND DRAG: Position your pointer between the start-Point and end-Point of the Arc, at and Drag towards the apex of the Arc as you intend it to be drawn, then release your mouse.

MechDesigner adds the Arc with a centre-Point at the center of the Arc and a start-Point and end-Point at each end of the Arc.

Circlen +

Pointn
At each end of the Line +

CoincidentPtoCn.
A constraint fixed with the Arc. This constraint uses all of the elements.

Help Files for MechDesigner and MotionDesigner 11.1 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd