<< Click to Display Table of Contents >> Navigation: MechDesigner Reference & User Interface > 2.3 Part-Editor: > Geometry > Geometry | Dimension |
Use Add Dimension to add all Linear and Angular Dimensions:
•Length or a Line or Radius or a Circle or Arc.
•Perpendicular Distance from a Line, or X-Axis, or Y-axis, to a Point
•Angle between two Lines, or the Angle from the X-axis or Y-axis to a Line
•Angle between three Points.
See also: Number-Format: Precision and Digits, Dimension Font Size
See also: Rename - helpful when you add Dimensions to a Design-Set.
Toolbar : |
Part-Editor: Geometry toolbar > Add Dimension |
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Menu : |
Part-Editor: Add menu > Geometry sub-menu> > Add Dimension |
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To Add a Dimension:
The Dimension is now in the graphic-area. |
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Notes: •When sketch-elements are fully defined, you cannot add any more dimensions or constraints. •You cannot add a driven-dimension in the Part-Editor. Alternatively, use add Measurement FB in the Mechanism-Editor as a driven-dimension. •Generally, do not make a dimension zero. It is better to add a constraint to move Lines or Points together. See Sketch-Constraints |
1.De-select all other commands 2.Double-click the arrowhead of a dimension element Why the arrowhead? •MechDesigner does NOT respond if you click the Dimension Number •It is easier to click the arrowhead than to click the dimension-lines or extension-lines. |
There are two methods you can use to locate a Point* in a Part. NOTE: These two methods relate to a Point sketch-element, and a start-Point, end-Point and centre-Point in other sketch-elements. Method 1: Add Dimensions
Method 2: Lock & Specify in the Point Properties dialog box Note: You can use Method 2 only if you have NOT added to the Point a dimension or a constraint.
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Example |
Dimension: |
How? |
Selection-Window / Geometry-Tree |
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•Length of a Line
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1.Click the Line |
Dimn |
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•Distance between two parallel Lines •Distance from Y--axis(or X-axis) to and Vertical (or Horizontal) Line
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1.Click a Point at the one end of the Line 2.Click the other Line (or axis). |
DimLtoLn |
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•Shortest distance between two Points Note: Arcs, Circles, and Lines have Points. |
1.Click each Point |
DimPtoPn |
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•Horizontal Distance between two Points |
1.Add a Vertical Line from one of the Points 2.Click the Point and then the Vertical Line |
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•Vertical Distance between Points |
1.Add a Horizontal Line from one of the Points 2.Click the Point then the Horizontal Line. |
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•Shortest distance between a Point and a Line (or axis). Note: Arcs, Circles, and Lines have Points. |
1.Click the Point then the Line (or axis).
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DimPtoLn |
Example |
Dimension: |
How? |
In Selection-Window as: |
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•Radius of a Circle
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•Click the Circumference of a Circle |
DimRadiusn |
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•Radius of an Arc |
•Click the Radius of an Arc |
DimRadiusn |
Example |
Dimension: |
How? |
In Selection-Window as: |
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•Angle between three Points |
•Click the Point that will form the apex of the angle, followed by the other two Points. |
DimAngPPPn |
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•Angle between two Lines •Angle between an axis and a Line The Lines do not need to cross. |
•Click each Line The displayed angle has rules. See Below
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DimAngLtoLn |
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Angle between two Lines - Rules: The dimension shows next to your pointer when you select two Lines. Before you click your mouse again to define the displayed angle, you can select which angle to display. There are eight possible angle dimensions: •Move your mouse counter-clockwise around the apex of the two Lines, the 'acute', 'obtuse', 'supplementary', or the 'vertical' angle <180° will show. •Move your mouse clockwise around the apex of the two Lines, and the 'reflex' angles to the other angles will show. |
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Video:Add 8 possible angles between two Lines
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