Objects creation and modification	Modifying the size and shape of objects
Adding lightening holes to regions
Overview     Operations    Commands

How to add lightening holes to regions  

The add lightening holes to region function lets you to add lightening holes of different types to a region.

1. Select the region
2. Click on the menu Modify  Region operations...  Add lightening holes

This dialog will appear:

In the left side of the dialog you can see the list of the applied holes and the buttons to Add and Remove them.

When a hole is selected in the list, you can see its parameters just below the list. You can modify them and press the 'Apply to selected' button.
You can drag use the control points on the graphic window to move the holes and change its size and shape. Dragging the central green point the hole will be moved. Dragging the blue control points you can change the shape and size, moving a side or a vertex point. Dragging the other green control points you can modify the rounding of each corner, for lightening holes only. When the dragging operation is finished the right final shape of the hole will be computed and rendered.

Each type of hole/slot can have different parameters:

Lightening holes parameters:

The Position fields specify the coordinates of the center of the item
The Type can control the way you can leave material inside the hole:

• Simple: no material inside the hole
• 45°: a segment at about 45° will be left inside
• 135°: a segment at about 135° will be left inside
• 0°: a horizontal segment will be left inside
• 90°: a vertical segment will be left inside
• Crossed Angled: two Crossed Angled segments will be left inside
• Crossed: two Crossed segments will be left inside
• Crossed Full: four Crossed segments will be left inside
• Diamond: four segments will be left inside

You can also force the Simmetry the hole must keep, using the Simmetry combo box

Double clicking an item in the list to change the Type. The Type is also displayed in the list as an icon.
The thickness parameter specify the thickness of the inside material
Applying some types can create more holes, depending on the shape of the outer contour.
All the inside corners will be smoothed when possible.

Rectangle parameters:

The Position fields specify the coordinates of the center of the item.
You can also specify the Width, the Height and the rotation angle of the Rectangle

Circle/ellipse parameters:

The Position fields specify the coordinates of the center of the item.
You can also specify the X and Y diameter (if the value is the same a circle will be applied) and the rotation angle

If you Add a new item, it will be placed in the drawing. Using the control points you can then move it to the right position and shape/size it.

For some parts type (like Formers) you can also see two more check buttons:

• Add also a X mirrored Hole
• Add also a Y mirrored Hole

Enabling them you can create mirrored copies of the selected hole/slot

Setting the Check to the 'Show hole index' button, the index will be displayed in the centre of the hole, so that you can find it easily in the list.
Just below the list you can read the percentage of saved weight.

Press OK to apply the settings, or Cancel to exit ignoring the modification

Note:

• You can Measure a distance and angle using the 'Measure' menu or the Toolbar button. You will be prompted to click the 2 points to measure
  
• You can Zoom the image using the Zoom menu, the Toolbar buttons or in a faster way by the Scroll wheel of the mouse 

 Command line: REGION_ADD_LH