Home / More CAD-CAM / GibbsCam / Tips and Techniques gibbscam

Tips and Techniques gibbscam

Avoid congruent face modeling

The system attempts to solve co-planar congruency problems (where the faces that are congruent are planes) and is often successful. However, as a general rule you should avoid Boolean operations with congruent faces. When possible, adjust one of the bodies (by offsetting faces, etc.) so as to not have congruent faces. A good practice is to always try to overlap bodies when possible.

Avoid co-edge modeling

There must be exactly two faces per edge in a solid.

Slice simple solids

A CS or plane acts as a big knife and slices every solid that it intersects. For purposes of accuracy, it is better to perform slicing operations on a simple solid.

Blend corners last

Rounded bodies have more faces, which can slow down several of the functions. Another reason to round last involves the Rebuild function. Bodies that have rounded edges can be rebuilt. However, there cannot be any significant changes to the topology in order for the rebuild to work.

Do not round fillets that can be left by a tool

The intersection surfacing option is designed to machine edges at the intersection of two surfaces. The intersection process can only be applied to edges that are not blended. So, if you want to create a necessary fillet using the radius of a ball or bullnose endmill, do not create the fillets on the part model.

Minimize generations

Be careful with Modify operations, such as Duplicate And…, as each time one is performed a new body is created. A good practice is to think carefully about the modeling operations in order to reduce the file size and make all future modeling more efficient. Another way to minimize generations of solids is to intersect bodies rather than perform two subtraction operations.

Name your body

Bodies should be given distinct, descriptive names to avoid confusion. You can name bodies using the Properties dialog or by changing the icon name when the solids are in the Body Bag.

Minimize the use of non-destructive Boolean operations.

Promote the use of the History list. By having fewer bodies, the file size is smaller and processing time is faster.

Deselect the Body Bag items

If a body in the Body Bag is selected, it may be accidentally deleted. To avoid accidental deletion, keep the Body Bag closed when not in use.

Use the Un-Bag It function for small items in the Body Bag

Often a body is so small it cannot be seen when the Body Bag renders it to scale. The easiest way to select these small objects is to right-click the name and choose Un-Bag It from the context menu.

Bag and Un-Bag many items in the Body Bag at once

The title bar context menu for the Body Bag contains two important bagging techniques for bagging multiple selected items, Bag Selected and Un-Bag Selected, which are especially useful for surface file imports.

Leave a Reply

Your email address will not be published. Required fields are marked *