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3D Scanning Without Contact |
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Written by Laser Design
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The process of 3D scanning has an increased number of applications due to astounding advances in technology. Typically, it is used in creating 3D models of items which are then put to use in a variety of ways. It’s also the first step in the process of reverse engineering. Moreover, it has numerous uses in the realms of orthodontics and the medical field.
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Steps to create DCC programs in open layout (Part 2) |
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Written by Ray Xing
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We’re talking about part set up in the previous installment, which I think is definitely worth your spending time on because you don’t want to get stuck half way and realize that you have to change your set up to get work done. The next thing I’d like to discuss is probe configuration. If you get on any 5-day training course I’ll bet you that probe calibration will normally covered on day 1. But I don’t want to talk about probe calibration here since everyone knows how to do this on his own cmm very well, instead, I’d like to share some opinions about how to select your probe configuration efficiently.
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Steps to create DCC programs in open layout Part 1 |
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Written by Ray Xing
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In my last 13 years I’ve had chance working in different industries such as tool and die, stampings, castings, machining and contract inspections, so I’ve really seen a lot on how cmm is used to measure different kind of parts. And I know creating a good DCC program sometimes is quite challenging especially for novice cmm guys. Since I’ve gained good experience on training cmm operators I’d like to share some of the important steps in my book when creating programs.
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Search Algorithm for Slots |
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Written by Stanley Schnuerer
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Programming a CMM to probe a slot can be made very simple with automatic routines requiring only a few “taught” points. But what if you don’t have the part and need to program off-line before the part arrives? Or how do you address part variability so that the program works without need for constant supervision to make sure that the slot is properly recognized each time? The ability to view and study a CAD Model while programming and take advantage of the predictable line and circle geometry of the slot provides an answer to these questions.
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Written by Mark Boucher CMM Quarterly
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In the last issue of CMM Quarterly we discussed the meaning of data. I have data but what does it mean and how can I convey this data to the customer or machinist to give them the information they need.
This article will explore some basic concepts of data and data collection. At Chiron America, the machine tool builder in Charlotte, NC, they use a system that works very well to bridge the gap between CMM inspection data and the machinist. Along with the main division in Germany, Chiron-Werke, they have developed a system on how to best use the data coming off the CMM.
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Written by Stephen Horsfall
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Construction: Defining and constructing features.
The previous article in this series covered the measurement of features which meant that features were created directly from touching or scanning the component. While most features in an inspection program will be created this way, sooner or later, you will have to use the measured features as part of constructions. DMIS constructions require that you first decide what sort of feature you are going to construct. The most common types of constructed feature are:
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True Position With Zeiss Calypso Part 1 |
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Written by Nathan Corliss
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One of the most widely used geometric dimensioning and tolerancing tools used by engineers is true position. A true position callout defines a zone where an axis or center plane of a feature can vary from a theoretical exact true position. The tolerance zone controls both location and orientation of a feature. The application of the callout is broad, used to control a varying array of features to their respective datum reference frames. Zeiss’ Calypso CMM software has most of the necessary tools for users to complete the evaluations. However, not understanding what the software is doing and why the results are generated can be severely detrimental in the manufacturing and functionality of the product.
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