SheetMetal AddCornerRelief

SheetMetal AddCornerRelief
Menu location
SheetMetal → Add Corner Relief
Workbenches
SheetMetal
Default shortcut
C R
Introduced in version
-
See also
None

Description

The SheetMetal AddCornerRelief command adds a corner relief. A relief is usually created at corners where two bends meet, but the command can also create a relief at an open corner.

The command can only create one relief at a time.

Default corner of two bends → Corner with added corner relief

Default open corner → Open corner with added corner relief

Usage

1. Select two edges of a corner.
2. There are several ways to invoke the command:
   • Press the Add Corner Relief button.
   • Select the SheetMetal → Add Corner Relief option from the menu.
   • Right-click in the Tree view or the 3D view and select the Sheet Metal → Add Corner Relief option from the context menu.
   • Use the keyboard shortcut: C then R.
3. A CornerRelief object is created and the Generate Sheet Metal base shape Task panel opens (introduced in version 0.5.00).

   A new corner relief is added at the selected corner.

4. Optionally press the Select button to reselect the edges.
   • Press the Preview button to finish the selection and display the changes.
5. Optionally re-select one of the Relief Type radio buttons:
   • The Circular radio button creates a round relief cutout.
   • The Square radio button creates a square relief cutout.
   • The Sketch radio button creates a cutout based on a sketch.
     1. Press the Sketch button to select the sketch.
     2. Optionally adjust the X offset and Y offset parameters.
6. Optionally toggle the Relief Size radio buttons:
   • Select Absolute and enter the Relief Size in mm.
   • Select Relative and enter the Scale Factor.
7. Optionally adjust the K-Factor.
8. Press the OK button to finish the command and close the Task panel.
9. Optionally adjust the parameters in the Property editor.

Task panel

A task panel was introduced in version 0.5.00

Double-click an existing CornerRelief object in the Tree view to re-open the task panel and edit the parameters.

• Base Select: Links selected edges to the base Object property.
• The Circular, Square and Sketch radio buttons in combination with the Absolute and Relative radio buttons set the Relief Sketch property.
• If the Sketch radio button is selected the following options are displayed:
  1. Sketch: Links a Sketch to the Sketch property.
  2. X Offset: Sets the XOffset property.
  3. Y Offset: Sets the YOffset property.
• If the Absolute radio button is selected:

  Relief Size: Sets the Size property.

• If the Relative radio button is selected:

  Scale Factor: Sets the Size Ratio property.

• K Factor: Sets the kfactor property.

Relief shapes

The shape of a corner relief can be altered by changing its property values:

The value of the property DataReliefSketch can be chosen from a list: Circle (default), Circle-Scaled, Square, Square-Scaled, Sketch.

• Circle and Square use the value of the property DataSize to scale the relief.
• Circle-Scaled and Square-Scaled use the value of the property DataSize Ratio to scale the relief.
• Sketch activates the use of the sketch listed in the property DataSketch to define the relief shape.

Circular relief (default settings) → Square relief (default settings) → Sketch based relief

A closer look at relief sizes

To get an idea how and where the relief is placed we unfold a default corner without a relief.

Default corner of two bends → Corner with unfold solid → Corner in top view

The next step is to open the unfold sketch, create a circle through 3 points and add a radius dimension.
Now we add a corner relief, create the corresponding unfold solid and open the first unfold sketch again.
Adding a concentric circle of 3 mm radius reveals that we have found out how the internal circle is positioned as the new circle fits perfectly into the cut-out of the relief's unfold solid.

Default corner with unfold sketch → Corner with default relief and the same unfold sketch

Trying to set the property DataSize to a value below the determined 1,67 mm will result in an error; any value above should work fine.

Switching to Circle-Scaled and creating another unfold solid shows that 1,67 mm is the base for the property DataSize Ratio, too.

Notes

• The k factor defines where within the thickness of a sheet the neutral axis is located according to the ANSI standard.
• The selection accepts more than two edges, but only the first two edges are taken into account.

Properties

See also: Property editor.

A SheetMetal CornerRelief object is derived from a Part Feature object or, if it is inside a PartDesign Body, from a PartDesign Feature object, and inherits all its properties. It also has the following additional properties:

Data

Parameters

• DataReliefSketch (Enumeration): "Corner Relief Type". Circle (default), Circle-Scaled, Square, Square-Scaled, Sketch.
• DataSize (Length): "Size of Shape". Default: 3,00 mm.
• DataSize Ratio (Float): "Size Ratio of Shape". Default: 1,50.
• Database Object (LinkSub): "Base Object". Links to the pair of edges defining the Corner Relief position.
• Datakfactor (FloatConstraint): "Neutral Axis Position". Default: 0,50.

Parameters1

• DataSketch (Link): "Corner Relief Sketch".
• DataXOffset (Distance): "Gap from side one". Default: 0,00 mm.
• DataYOffset (Distance): "Gap from side two". Default: 0,00 mm.