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7. Oblique jig

Exercise 7: Oblique jig

Version compatibility

This exercise was carried out with version 27.0 (Vertex 2021).

Table of Contents

In this exercise you will learn to

  • How to a new part (local) is created in the assembly.
  • How to create a part from lines and faces.
  • How to give color and transparency for a part to make it easy to use as a jig.

The actual sheet metal parts are modeled in the next exercise.

Functions to be used:

  • Creating a new part in the assembly.
  • New Sketch > Face, Parallel, 3D Skecth
  • Sketching:
  • Operation: Guide Curve
  • Faces > Add Face
  • To volume (Create a part form faces. Add a missing faces.) 
  • Add Round/Bevel > Single Edge Round
  • Rendering > Change Material
  • Rendering > Change Transparency.

Main stages

  • Sketch the inside shape of the jig using the Guide curves.
  • Use these guide curves to add faces.
  • Create a part (volume) of the faces.
  • Add roundings used when creating sheet metal parst with the Tangential offset function.

Create a new Assembly

  • File > New > Assembly.
    • Enter the label (which is also the name of the model and by default will be the name of the drawing).
    • Enter the archive information by clicking Arc.Data.
    • Select the project where the model will be saved.
    • OK.

Create a local part

  • Right-click function: New.
  • Click: Part.
  • Enter the label of the part.
  • Select: Local. "Local" means that the part is not made its own file, it is only visible in the assembly. 

Create a Guide curve for bottom

  • New Sketch > To horizontal (XY) plane.

Sketch the shape

  • Sketch a rectangle. The function: Two point rectangle.
  • Click to the first point from the origo.
  • Enter the dimensions: 200,150 and press the enter key.
    • The program draws a rectangle with size 400 * 300.
  • If you want the jig to vary in size, edit the dimensions and add a formula to them


  • Guode Curve.

Create a Guide curve for top

  • Restore the Horizontal (XY) Plane if it is hidden.
    • Click the Plane.
    • Right-click function: Restore.
  • Click the To horizontal (XY) plane.
  • Right-click function: New Sketch > To parallel.
    • Enter value 400 and formula HEIGHT

Sketch the shape

  • Skecth a rectangle in an oblique position.
  • Skecth construction lines, between the middle point of lines.
  • Add the Conincident constraints separately for each construction line and ogigo.
  • Add the Distance constrains.
    • 400 and formula: LENGTH.
    • 300 and formula: HEIGHT.
  • Add the Angle constrain
    • 25.


  • Guode Curve.

Sketch a 3D guide curve

  • Right-click function: New Sketch > 3D Skecth.
  • Add eight lines as shown in the figure.
    • Make sure the cursor catches the endpoints of the lines and not the lines.
  • OK. (Exits sketch mode and makes guide curves).

Add surfaces

Surfaces have to be added for each Face (10 pcs) separately.

  • Click three adjacent lines. (Remember the Ctrl key).
  • Right-click function: Faces > Add New.
    • If necessary, change the direction so that the arrow points outwards from the "part". 
  • Use the option for the following faces: Stitch surfaces.
    • This option to keep the faces to be joined parallel (= outwards from the "part"), so the part (volume) can be easily formed later.

Create a part (volume)

The edges between the surfaces cannot be rounded, so surfaces must first be made a volume.

The surfaces in the model should form a enclosed space, but this is not an absolute requirement. It is allowed for someone or some faces to be missing.

  • Right-click function: To Volume.
  • Click a reference face (Any of these faces are valid).
  • OK.

Note: If you have modeled (all needed) the surfaces so that they delimit the enclosed space from space, the program may not introduce the right-click function: To Volume. In this case, you can create rounds directly to the model.

Create roundings

  • Click the four lines shown in the figure. (Remember Ctrl key).
  • Right-click function: Add Round/Bevel > Single Edge Round.
  • Enter the value for the bending radius of the plate, eg: 2.

Change the color of the part

  • Right-click function: Rendering > Change Material.
  • Browse materials
    • Vertex Libarary > Vertex Palette >
    • For example, double click the color VxColor_260
  • OK.

Change the transparency of the part

  • Right-click function: Rendering > Change Transparency.
  • Remove selection: Use tranparency of surface materials.
  • Enter a value for transparency:
    • Eg 80.
  • OK.

Change the properties of the jig

This part is only used as a modeling aid, so it is not desired to be included in the assembly parts list.

  • Right-click function: Properties.
  • Remove selection: To Assemblu Parts List.
  • OK.

Returns from part modeling to assembly model

Save the model

  • File > Save or click
    or press


Duration 2m 31s

For the best quality for your video, watch it:

  • In full screen mode.
  • With a resolution of 1080pHD.

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