June 8, 2010
Working on a design for a Shashlik Grill,
columnist Gerald Davis reminds CAD designers
that it is a good practice to test parametric
links as the design progresses.
May 11, 2010
From the CAD operator's point of view, he can use several tricks for sheet metal modeling that can keep the design in the realm of can-do manufacturing—the land where the tooling and metal processing technologies are commonly available.
April 1, 2010
When it comes to providing exact details for the bill of materials for a 3-D design job, columnist Gerald Davis provides some pointers to help speed up the project.
March 1, 2010
Working on a design for a Shashlik Grill,columnist Gerald Davis provides guidance so that the designer ends up with a design that allows him to explore various changes to the size of the overall product while having the component parts stretch or shrink automatically
January 15, 2010
Gerald Davis begins this year with a series of product development case studies, taking an idea and creating the virtual model of it.For this first installment, Davis designs a barbecue grill.
September 23, 2009
The most important role of a CAD operator is to verify that the design can be flattened. Columnist Gerald Davis provides some guidance on that subject.
July 1, 2009
A reader has a question about modeling an assembly comprised of three plates and tubing. Columnist Gerald Davis provides guidance.
June 1, 2009
The most important output from a CAD system is the bill of material. Columnist Gerald Davis gives us an idea of just how much detail should go into creating a BOM.
May 1, 2009
Leaning to use the loft tool in 3-D CAD modeling takes some work, but it can come in handy in certain circumstances.
April 1, 2009
Like an extrude or revolve, a sweep is a tool for modeling a 3-D shape. A sweep consists of three basic elements--a profile, a path, and a set of rules for "sweeping" the profile along the path. A sweep can be a powerful tool when modeling 3-D shapes, according to columnist Gerald Davis.
March 1, 2009
Among the tools in the 3-D CAD toolkit—extrudes, revolves, sweeps, and lofts—the first two can be used to create identical parts, but they don't work the same way. Depending on which process you choose, the time the computer needs to model and rebuild the part can vary substantially.
February 1, 2009
Columnist Gerald Davis explains that preparing a 3-D CAD model without dimensions may look great, but it doesn't really do anybody any good. For example, a 3-D CAD model with dimensions helps quality control inspectors.
January 1, 2009
Columnist Gerald Davis describes different approaches to sketching in a 3-D environment.
December 1, 2008
Columnist Gerald Davis describes the benefits of working with 3-D CAD assemblies.
November 1, 2008
Columnist Gerald Davis discusses the importance of delivering a clear illustration and how it can make an impact on the final fabricated product.