Boolean Operations (3-D)

3-D Standard > Process > Add

You use the

functions to perform Boolean operations.

The following options are available:

Add

Add, without sub-parts

Subtract

Subtract, without sub-parts

Intersection

Intersection, without sub-parts

 

Please note:


Add

3-D Standard > Process > Add

You use this function to add the active part and any other part of the drawing. The active part is Boolean-unioned with the identified part.

  1. Identify the part to be added.
  2. If you want the part to be preserved after the operation, confirm with Yes.

Left: (1) Active cuboid, (2) Cone to be added
Right: Boolean union of the parts

 

Please note:

The adding of 3-D parts to a Steel Engineering parts may cause problems with subsequently called functions, e.g. mitre cuts, Steel Engineering connections, NC/NCX export, deriving of drawings, etc. Attributes (e.g. weight, length, etc.) may also be calculated incorrectly. In such cases, HiCAD will display the following warning message:

You can then decide whether you want to execute the function or not.

If you do no longer want this message to be displayed, activate the Suppress message checkbox. In this case, the adding will either be accepted or refused, depending on your last choice in the message window. Please remember that the checkbox status applies only to the current HiCAD session!


Subtract

3-D Standard > Process > Add > Subtract

Subtracts any part of the drawing from the active part.

  1. Identify the part to be subtracted.
  2. If you want the part to be preserved after the operation, confirm with Yes.

Left: (1) Active cuboid, (2) Cone to be subtracted
Right: Result of the subtraction

Left: (1) Active cone, (2) Cuboid to be subtracted
Right: Result of the subtraction


Clean up

3-D Standard > Process > Add > Clean up

Use this function to subtract part intersections from the active part. this function to subtract intersecting parts from the active part. In contrast to "normal" subtractions, you can select the facets to which you want the resulting hole to be parallel.

Proceed as follows:

  1. Identify the active part.
  2. Select the Clean up function. The Clean-up dialogue window will be displayed.
  1. Click the icon and identify the intersecting part. After selecting the part, the text Collision part will be displayed (instead of Select part) will be displayed.
  2. In the Surfaces area, choose the method for the selection of the facets to which you want hole resulting from the intersection subtraction to be parallel.
  1. Enter the value for the Clearance.
  2. Click the Preview button to check the result. If you want to correct any entries, click the preview button again and adjust your settings. Click OK to start the clean-up. Click Cancel to abort the function.

 

The left image below shows a cylindrical collision part (1) that intersects with a pipe. The outer surface (2) and the inner surface (3). of the pipe have been selected. Image A shows the result with clearance, while image B shows the result of a subtraction.

Left: (1) Collision part, (2) and (3) Identified surfaces. A: Result of clean-up, B: Result of subtraction

 

Please note:


Intersection

3-D Standard > Process > Add > Intersection

Creates the intersection of the active part with another part of the drawing.

  1. Identify the desired part.
  2. If you want the part to be preserved after the operation, confirm with Yes.

Left: (1) Active cuboid, (2) Cone for the section
Right: Result

Process Part (3-D)Model and Process Parts (3-D)

© Copyright 1994-2018, ISD Software und Systeme GmbH
Version 2302 - HiCAD 3-D
Date: 30/10/2018

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