SOLIDWORKS Multibody

SOLIDWORKS 2019 Interference Detection on Multibody Parts

The SOLIDWORKS 2019 Interference Detection tool can be used directly on a multibody part.  This is very useful to check weldment parts (or multibody sheet metal parts) for any potential interferences that need to be reviewed.  Previous versions required other solutions such as combine or inserting into an assembly. This is also useful when running Simulation studies on multibody parts.  Simulation studies will fail with any interference of bodies.  This tool will help locate the problematic regions. The Options are similar to assembly Interference Detection.  There is an option to ‘Skip interferences inside inserted parts’.  If you insert another part into this part, any interferences contained within the inserted part is ignored.  However if the inserted overall part has interference with your component, this will still show up.

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How do I run SOLIDWORKS Interference Detection on a Multibody Part?

One of the main evaluation tools in an assembly is Interference Detection. This command shows any possible interference between components so that we can modify the parts and prevent issues in manufacturing. Designing multibody parts is very similar to working with an assembly; and the solid bodies could also have interference, however, we don’t have access to the interference detection command at the part level. In this article, two methods are provided to run SOLIDWORKS Interference Detection on a multibody part: What are Multibody parts? Using Multiple bodies in part modeling is one of the advanced 3D design techniques. This method not only allows design of more complex 3D models but also takes advantage of assembly modeling techniques. For instance, you can insert a part into another part similar to inserting a component into an assembly. Positioning and defining mates are very much similar in both cases. The only difference is…

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SOLIDWORKS Indent Cut feature instead of Combine/Subtract

When working in a multibody part you sometimes have overlapping regions and you need to remove the common volume from one of the bodies.  In this example I inserted a derived part as a separate body.  Notice the interfering areas where we want a groove in the red body. We could use the Combine feature with the Subtract option to remove the material from the red body.  But this would also remove the black body at the same time. The other option could be to make a copy of the black body using Move/Copy Bodies, then use one of these for the Combine feature.  But this is just another step/feature to add. Instead you can use the SOLIDWORKS Indent Feature (Insert > Features > Indent) with the Cut option.  Set the Clearance to 0 (unless you actually want clearance) and it will remove the region from the ‘Target Body’.   Yet…

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SolidWorks Tutorial – Fill an Assembly Cavity to Determine its Volume

In the past articles, we demonstrated the use of the new Intersect Tool for quickly filling an existing cavity with a solid body in order to calculate its volume. That works fine at the part level, but how can you achieve the same thing in an assembly? How can you “fill” the cavity or cavities created between all components of the assembly with material in order to calculate the volume of the “void”? Watch this video and learn how to combine Boolean operations at the assembly level with multibody workflows at the part level:

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SOLIDWORKS Weldment Interference Detection

If you’ve ever made a weldment in SOLIDWORKS , then you know how easy it is to create a multibody part without really having to think about it all too much. I mean, SOLIDWORKS automatically recognizes the cut lengths for structural members and makes a cut list for you. It even recognizes when parts are the same and groups them together. But, like everything in life, it’s not completely foolproof. I can still make a classic mistake with weldments. Behold: If you notice the image above, there is an interference between two structural members. On this example, the interference is obvious, but on your more complex weldment it may not be. When the shop floor goes to make this and only looks at the cut list, they will cut the material only to learn later of the interference. This will not win you any friends on the shop floor. No Interference Detection tool…

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Alin’s SW 2013 Pick of the Day – Fill External Cavities with Discrete Bodies Using the Intersect Tool

Last week I showed you how to use the new Intersect tool for simplifying your model by filling its internal cavities. Today let’s consider the situation where you need to fill the external cavities from the Mr. Smiley model with discrete solid bodies in order to 3D print the end result with a bi-material printer from the Objet Connex family. This video proposes two different solutions for this challenge. Can you think of more?

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Total Control for the Bend Allowance in Multibody Sheet Metal Parts

You have to upgrade to SolidWorks 2013 SP3.0 in order to have total control over the bend allowance for multibody sheet metal parts. Note: Many thanks to Anna Wood for making me aware about this new functionality!!! While the ability to control the thickness, default radius and the bend allowance at the body level has been implemented in SolidWorks 2013 SP0, the workflow was not really intuitive for the user (read this article for more information about how this functionality worked in SolidWorks 2013 SP0, SP1 and SP2). Starting with SolidWorks 2013 SP3.0, there is a new checkbox for the bend allowance at the body level that can control where the information is coming from: either from the Sheet Metal feature at the part level…

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Flat Pattern Views for Sheet Metal Multi-body Parts

SOLIDWORKS has supported sheet metal multi-body parts for the last two releases, but that still came as a pleasant surprise for me. The advantages are huge and clear — you can design all your sheet metal components in the context of one part, generate a handy cut-list and sprinkle the drawings with nice balloons, like in assemblies. You can even include structural members or regular solids if needed. Oh, and let’s not forget how nice the Edge Flange can bridge two separate sheet metal bodies (fig. 1). Magic! What about drawings? The problem seems to appear when you need to create drawing views for flat patterns. You do not seem to get the Flat Pattern option in the “Model View” dialog box. If you take a moment to think about it, you cannot have a Flat Pattern for the whole part, since it is now an “assembly” of sheet metal bodies. But…

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