CATI Tech Notes

SOLIDWORKS Tips and Tricks and Info on Professional 3D Printing with Stratasys from the Technical staff of CATI

SOLIDWORKS: Making Sense of Simulation Meshing – Part 1

Making Sense of SOLIDWORKS Simulation Meshing – Part 1   As an Application Engineer specializing in SOLIDWORKS Simulation, I often get asked, “How do I know if I have a good mesh?” The simple answer is, it’s not so simple. This is the first blog in a 3 part series that I will be posting about meshing. In this blog we will discuss meshing considerations for study types and purposes as well as mesh convergence considerations. The next two blogs in the series will talk discuss mesh quality tools, what they mean, and the types of meshers.   Meshing is a term for the process of discretizing CAD geometry. For the

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Posted in Design Validation, Simulation, SOLIDWORKS Tips and Tricks

Creaform 3D Scanning: Colormap, the Quick Go/No-Go of Inspection

Colormap, the Quick Go/No-Go of Inspection   The HandyScan 700 is a great tool for inspecting parts for Quality Control engineers.  Using VxElements, PPAP inspection reports can be created being as simple or as complicated as needed.  After importing a CAD model, either .iges or .stp, the scan can be compared to the “perfect” CAD model.  One of the useful tools within VxElements is the ability to create a colormap of the differences between the CAD model and the scan.  This can be based on a surface best fit reference frame or a datum reference frame.  This can be used as a quick go/no-go of whether a part overall is

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Posted in 3D Scanning, Design Validation, Digital Prototyping

SOLIDWORKS: Blended Curvature Based Mesh in SOLIDWORKS Simulation

Blended Curvature Based Mesh in SOLIDWORKS Simulation   Meshing a part appropriately might be tenuous at times, but it is certainly a lot easier in SOLIDWORKS than just about any other software. We don’t want to set the expectation that meshing is a problem for SOLIDWORKS. Getting a good aspect ratio around the smaller geometry can drive you and your computer a bit crazy, especially if you don’t know the smallest size of your geometry. SOLIDWORKS introduced the blended curvature based mesh in SOLIDWORKS 2016. Let’s take a look at the user interface:     It looks very similar to the curvature based mesh, including the options of max/min element size,

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Posted in Design Validation, General Info, Simulation

CATI Product Development Forum – Register for an Event Near You

Product Development Forum Events   We are just days away from the start of our annual Product Development Forum. This year, we are celebrating our 25th anniversary. To say thank you and show our appreciation to our clients, the agenda is 100% training based. Each event will showcase 5 lecture style training sessions, exhibits form our partners, and the chance to meet one-on-one with one of our technical experts. Visit the Product Development Forum Event Page on CATI.com for complete details and agendas for an event near you.   Dates and Time Locations April 11, 2017 8:30am – 3:00pm Central Time Waukesha, WI Marriott Milwaukee West >>Registration Link April 12,

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Posted in 3D Scanning, Daily Dose.....of SolidWorks Support, Data Management, Design Validation, Digital Prototyping, General Info, Rapid Prototyping

SOLIDWORKS: Meshing Errors in SOLIDWORKS Plastics 2016

Meshing Errors in SOLIDWORKS Plastics 2016   When trying to mesh a runner system with the part in SOLIDWORKS 2016, you may end up getting errors that don’t give you a clue to what is wrong. For instance, take a look at this message: when sewing connector, it without any face error!! This message came up when I was creating a solid mesh. Not sure if the message is a direct translation from another language but it doesn’t give you any direction on what is causing it or even what to change.     I had to follow some logic in this situation. Seeing that the runner mesh was not

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Posted in Daily Dose.....of SolidWorks Support, Design Validation, General Info, Simulation

Creaform 3D Scanners: Reverse Engineering the Death Star

Reverse Engineering the Death Star   No, I’m not on my way to becoming the next Emperor Palpatine, so no worries there.   Last Christmas season, my family found a Death Star Planetarium while shopping.  We had the idea of using it as a tree topper for our Christmas tree.  Our only problem was how to get it to stay.  It came with a stand, but it didn’t immobilize the Death Star. I could get calipers and other measuring tools out, but that doesn’t result in the best accuracy.  The answer came in using the Creaform 3D scanners.  I have only been using scanners and their software VXelements for a

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Posted in 3D Scanning, Daily Dose.....of SolidWorks Support, Design Validation, Digital Prototyping, Modeling, Rapid Prototyping

SOLIDWORKS World 2017: Highlights – 3D Interconnect

SOLIDWORKS World 2017 Highlights – 3D Interconnect   SOLIDWORKS 2017 adds a new capacity for working with files from other CAD systems. 3D Interconnect allows you to use existing CAD data from other packages without the need to convert them first. You insert them into an assembly the same way as any other part.       This part was created from a PTC file and had a slot added to it. 3D Interconnect also recognizes revisioning, so you can right click on an imported file and update it for a new revision:       This results in an updated model that had no errors referencing the sketch/sketch plane

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Posted in Daily Dose.....of SolidWorks Support, Design Validation, Digital Prototyping, General Info, SOLIDWORKS Tips and Tricks, SOLIDWORKS What's New

SOLIDWORKS: Nonlinear Material Models in SOLIDWORKS Simulation

Nonlinear Material Models in SOLIDWORKS Simulation   If you are using SOLIDWORKS Simulation Premium, you have access to the Nonlinear study type. One of the advantages of this study type over the Linear Static study is the ability to apply loads and boundary conditions that vary over time. Another is the access to multiple material models that represent nonlinear material behaviors:   Nonlinear Elastic Hyper-elastic Elasto-plastic Super Elastic Nitinol Linear Visco-elastic Creep   Let me give you a brief description of each.   Nonlinear Elastic Model   For those materials that don’t exhibit any linear behavior, e.g., a stress-strain relationship like the graph below, the nonlinear elastic material model is

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Posted in Design Validation, Simulation

Stratasys 3D Printing: Discovering Your 3D Printer’s Capabilities – Part 1

Discovering Your 3D Printer’s Capabilities – Part 1   This is the first of a series on ideas to understand the capabilities and limitations of your 3D Printer.  When you know what your machine can achieve it can be applied to significantly aid your part design as well as throughput and quality.   Regardless of the 3D printer you are using, it is drawing a 2D image in multiple layers to create the 3rd dimension.  With this in mind, most printers will require some kind of support or brace to prevent overhanging layers on top of a previous layer from collapsing.  Some machines, typically powder based machines, will use the unused material

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Posted in Design Validation, Digital Prototyping, Rapid Prototyping

15 Reasons to Attend SOLIDWORKS World 2017 #SWW17

15 Reasons to Attend SOLIDWORKS World 2017 #SWW17   With SOLIDWORKS World just a few weeks away and if you are looking for a reason to justify to your company why you should attend SOLIDWORKS World this year, the team at Computer Aided Technology, MCAD Technologies, InFlow and our customers are giving you 14 quality reasons to attend. The Technical Teams from CATI, MCAD and InFlow have 11 different presentations and we have 3 customers who are presenting their own material.   If you are not familiar with SOLIDWORKS World, it is SOLIDWORKS‘ annual 3 day conference that you can join more than 5,000 of your peers and select from

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Posted in CAD Administration, Daily Dose.....of SolidWorks Support, Data Management, Design Validation, Redneck Workarounds, Simulation, SolidWorks Electrical, SOLIDWORKS Tips and Tricks

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