Brep vs Visrep Models

Brep vs Visrep Models

What are the advantages of Brep vs Visrep models, and how do you tell them apart? Brep Models Brep refers to Boundary Representation. As the name suggests, the boundary between solid and non-solid geometry is in view here, the solid geometry being a collection of interconnected surfaces. This is a mathematically precise representation of geometry. Depending on the format and the CAD software you have in your possession, the features and underlying sketches may be editable, or the shapes may be editable – but generally speaking, if you don’t have the CAD system used to create the file, you cannot edit the features or sketches unless you run a...
CAD Format Analysis

CAD Format Analysis

What CAD format, and what version, did that colleague just give you? Most of the time it’s clear what format it is, and most of the time the version doesn’t matter, BUT – sometimes it does. This is a repost from a few years back. It has turned out to be one of our most referenced resources, so here it is again! The following CAD Format Analysis cheat-sheet will allow you to open up CAD files in a text editor like Notepad or Notepad ++ to find out what format they truly are, and in some cases, which version. I’ve seen cases from some of our customers where CAD files had, for whatever reason, been given the wrong extensions; once we learn...
Calculate Edge Length

Calculate Edge Length

All core TransMagic products allow you to calculate mass properties (weight, volume, centriod), surface area, create a bounding box, measure and add dimensions – but have you ever needed to calculate the length of straight or curved edges? You might need to know edge length in order to estimate a particular machining operation, for example breaking edges. Getting that value is not intuitive, so we thought we’d show you how here. It’s basically a two-step process: Step 1. Select the edges you want to get the length of. As you can see in this first screenshot at right, we have a solid model that has had several edges selected (highlighted in...
Protected: Can CAD File Formats Impact Job Quality?

Protected: Can CAD File Formats Impact Job Quality?

Can CAD file formats impact job quality? Does it really matter which CAD formats you use internally, or with customers and suppliers? With seven major manufacturing CAD systems, as well as various geometric modeling kernels and neutral CAD files, we’re certainly living in a multicad world. How do you make sense of all the different CAD file formats available, and how do you decide which CAD format is best for different tasks? Depending on how you break it down, TransMagic can currently read or write 29 different major CAD or polygonal file formats (To download the main image on this page as a PDF, click here). This article will look at the costs of using...
Why Can’t I View this CAD Assembly?

Why Can’t I View this CAD Assembly?

The next time you ask yourself “Why can’t I view this CAD assembly?”, keep in mind that assembly files, such as the SOLIDWORKS .sldasm, and CATIA’s CATProduct, require parts in order to see anything; otherwise, you simply have an empty assembly. Normally, your customer will send you a folder full of files, with one or more assembly file, and one or more part files. If you don’t have any part files, your assembly will be empty, and nothing will appear on screen. Also note that TransMagic requires all parts to be in the same folder as the assembly file so that it can ‘find’ the part files. If the part files are in other...
Video Tutorials and Overviews

Video Tutorials and Overviews

Many TransMagic users are not aware that there are helpful video tutorials and overviews available on the TransMagic site; here’s the rundown. All of these videos can be found at http://www.transmagic.com/support/video-tutorials/ Overview Videos TransMagic R12 What’s New Aerospace Validation and Certification Overview Basic TransMagic Video Tutorials Top 5 Tips for New TransMagic Users Quick Tips: Save As and Export Quick Tips: File Open and Import 7 Ways to Improve Your CAD Game Viewing & Quoting Video Tutorials Where’s My CAD Data, Part 1 Where’s My CAD Data, Part 2 Where’s My CAD Data, Part 3 Reorient Parts for Bounding...