Mazak CNC

By Larry Caschette

Staying at the top of your business game means making smart strategic moves to meet the diverse needs of your clients in today’s rapidly evolving marketplace. As our job orders increased in volume and complexity, we saw an opportunity to enhance productivity by upgrading our CNC machine. We went to Randy at Action Machinery in […]

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Mazak Laser

By Larry Caschette

Times change, technologies change, and to stay on the proverbial cutting-edge means making important equipment changes when warranted. Our laser had served us well for 15 years. But as demand for our services has grown, the need for a larger, more efficient laser became apparent. We contacted our friend, Randy, at Englewood’s Action Machinery, discussed […]

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Definition of Terms-Features and Features of Size

By Chris A. Lindenberger

Today our featured GD&T term is “features,” which includes “features of size.” But before we jump into this we need to talk about a basic term or thing or maybe we’ll call it a concept, which is the term part. In GD&T a part needs to be thought of as an item, or two or […]

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Definition of Terms- Basic Dimensions GD&T

By Chris A. Lindenberger

In GD&T basic dimensions used to be a fairly simple thing to define. However, today, among other things, “Basic dimensions” are numbers on an engineering drawing that represent values of size in whatever the measurement system being used on the drawing is. Those values are used to describe the theoretically exact size, profile, orientation or […]

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Definition of Terms-Concentricity

By Chris A. Lindenberger

Today we’re going to look at the concentricity control. This control is used a lot in a variety of situations that involve coaxial relationships. The definition states that concentricity controls ‘all’ diametrically opposed elements of a figure of revolution. Breaking Down the Basics Let’s break that down and look at a few rules for this […]

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Definition of Terms-Parts and Features

By Chris A. Lindenberger

Today I want to talk about a common definition for something we all talk about when the subject of GD&T comes up. I think it’s safe to say that the vast majority of people reading this series earn their livings on the floors of American factories. We design, machine, assemble, weld, measure, probe, form, punch, […]

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Definition of Terms- Maximum Material Condition

By Chris A. Lindenberger

With the previous topic, Rule #1, we discussed the need for a guiding principle to govern the need for geometry to follow rules that allow things to fit under all conditions, given that the proper engineering has been established for the condition being considered. That principal was stated as “size controls form.” In it the […]

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Definition of Terms-Feature Control Frames

By Chris A. Lindenberger

Today our featured GD&T term is “feature control frames.” We at Metalcraft decided some time ago to put together a glossary of sorts. It will be alphabetized in proper fashion but as various terms are added they will not be added in A to Z fashion, but more in order of importance, or more importantly, […]

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Definition of Terms-Rule #1

By Chris A. Lindenberger

Rule #1. In the world of engineering drawing there is an infinite amount of complexity to be detailed. All over the world there are parts and mechanisms that are dreamed up every day and for many of them there is a need for the assurance that a particular design will be flexible enough to work […]

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Definition of terms- Actual Mating Envelope / Related and Unrelated.

By Chris A. Lindenberger

Actual Mating Envelope – The Basics Actual mating envelope is a term that refers to a machined / manufactured part’s feature of size “as is” condition. To define what that means specifically, we need a specific individual part to talk about. The reason for that is when you have a part, or bunch of parts, […]

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