Tutorial 3: Add a Sketch-Loop to a Part

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Tutorial 3: Add a Sketch-Loop to a Part

Background to this tutorial

If you click the Model name-tab, after completing Tutorials 1 and 2, you will not see Solids. Tutorials 1 and 2 add kinematic elements only: Parts and Joints. Part and Joint elements are symbolic only, and for kinematic design and analysis, and are not Solids.

We can add Solids elements to Parts in two ways:

Add Profiles/Extrusions elements to a sketch-loop - these are MD-Solid

Import SOLIDWORKS Part and Assembly documents or STL file-types, from other 3D CAD - these are CAD-Solids

Objectives of Tutorial 3

1.Repeat Tutorial 1, to become more confident with the tools you need to use to add a rotating-Part.

2.Add a sketch-loop to a Part with basic sketch-elements.

Key Learnings of Tutorial-3

What is a Part-Outline?

A Part-Outline is a symbolic shape around each Part. There are two shapes:

Oval around those Parts we add to the model

Rectangular around the Base-Part

What is a sketch-loop?

A sketch-loop is a closed series of sketch-elements (Arcs and Lines) that we join their end-Points end-to-end.

If we merge the Points*, the two(2) Points reduce to one(1) Point, where we join each sketch-element into one Point

If the Points* are coincident Points, the Points are two(2) Points, and the sketch will not be a sketch-loop.

* start-Points and end-Points

GST-Icon-EditPart Use the Part-Editor

Step 3.1: New Plane, New Mechanism, New Part

Step 3.2: Add Lines & Arcs as a Sketch-Loop

Step 3.3: Add Tangent Constraints

Step 3.4: Add Coincident Constraints

Step 3.5: Add Parallel Constraints and Dimensions

Step 3.6: Edit the Length of the Base-Part

Step 3.7: Trouble-shoot Geometry

Sketch-Add 3 Lines and 3 Arcs

Tutorial 3: STEP 3.1

Add Plane + Add Mechanism + Add Part

Add 3 Lines and 3 Arcs

Tutorial 3: STEP 3.2

Add Lines & Arcs as sketch-Loop

Add Constraints and Dimensions

Tutorial 3: STEP 3.3; 3.4; 3.5; 3.6

Add Constraints and Dimensions