Geometry

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Geometry

Part-Editor - Geometry menu and toolbar

In the Part-Editor, use the Geometry menu and toolbar

to edit the length of an Added-Part

add sketch-elements

to add dimensions

to import a SolidWorks sketch

to use the Merge-Points tool


See also: Constraints menu and toolbar


Geometry menu

MD-Menu-Geometry

Geometry Toolbar

Part-Editor : Geometry toolbar is to the LEFT of the graphic-area.

Geometry toolbar [Click text to see more...]

Geometry toolbar
[Click text to see more...]


Sketch-Elements and the Base-Part

Before you can add a joint between the Base-Part and a Part, you must edit the Base-Part to add to it a minimum of one(1) sketch-element.  You can, of course, add any number of sketch-elements to the Base-Part.

The first sketch-element in the Base-Part?

We recommend that you add a Line as the first sketch-element to the Base-Part.

Why?

A Line gives you flexibility when you need to join other Parts to the Base-Part.

We can select the Line's start-Point and/or end-Point to add Pin-Joints, and the Line to add Slide-Joints, between the Base-Part and a different Part.

We can also reference the Line and/or the start-Point or end-Point to add a Motion-Dimension FB, and so define the motion of a Rocker and/or Slider relative to the Base-Part.

ABOUT GEOMETRY

Point names

Point  - the sketch-element you add to the Part in the Part-Editor with Add Point.

start-Point - the Point where you mouse-button down at the start of the Drag to add a Line, CAD-Line, Arc, or Blend-Curve.

end-Point - the Point where you mouse-button up at the end of the Drag to add a Line, CAD-Line, Arc, or Blend-Curve.

center-Point - the Point where you mouse-button down at the start of the Drag to add a Circle.

center-Point - the Point at the center of an Arc after you mouse-button up at the end of the Drag to add an Arc.


Edit a Dimension

To edit a dimension:

1.If necessary, de-select Add Dimension and all commands.

2.Double-click the arrowhead of a dimension or extension line ( do not double-click the dimension number).


Colors we use in the model and help* documentation for sketch-elements

Sketch-Elements in the Part-Editor

Blue: sketch-elements not Fully defined

Black: sketch-elements Fully defined

Sketch-Elements in the Mechanism-Editor  

Green: Part is kinematically-defined / solved - Part-Outline is also Green.

Blue: Part is not kinematically-defined / solved - Part-Outline is also Blue.


Note: The default colors that we use in the help may have changed. See:

Application-Settings > Graphics > Display colors > Geometry Defined /  Under-Defined

Application-Settings > Graphics > Display colors > Part Solved / Part Unsolved


Trouble-shoot - Geometry

CTRL+Z - that will return the geometry to the previous state., If not:

Click a sketch-element if it Black, but it should be Blue ,

Click the Delete key on your keyboard,

Add the sketch-element again.

Trouble-shoot - Constraints

SHIFT+CLICK a sketch-element, or its Points* to show, in the Selection-Window, any constraints that you have added

Delete the constraint from the Selection-Window.

Trouble-shoot - Dimensions

Delete an Angle dimension if it will not increase to be greater than 180º. Move the sketch-element, add the dimension again.

Delete the dimension if it gets 'stuck' at 0, (angular or linear dimension) , Add the dimension again.


Fix Constraint

To FIX a Point, start-Point, end-Point, or center-Point: use the Lock & Specify check-box in the Point Properties dialog-box.

However, you cannot FIX a Point with the Lock and Specify check-box if the Point is constrained with a Constraint or a Dimension