Tag Archives: Features

When repairing imported surface models it is sometimes necessary to patch holes in the surfaces. There are many tools and techniques available and each have their own trade-offs. If a surface has a hole in it that does not cross into another surface region using the Delete Hole feature will provide the most seamless patch.

In the example shown in the image below it can be seen that the surface has a hole which does not run into another surface region. This can be easily patched by selecting the edge of the hole and tapping ‘Delete’ on the keyboard. A dialog box will be presented with the choice of ‘Delete Hole’ or ‘Delete Feature’. Selecting the Delete Hole option will delete any hole created with a sketch, the Simple Hole, or the Hole Wizard features and create a seamless patch.

An alternate method would be to create a Surface Fill feature over the hole. This always creates a seam around the Surface Fill feature which may not be desirable.

The image above shows the results of a Delete Hole feature and a Fill Surface feature. Notice that the seam on the left is from the Fill Surface feature while there is no seam from the hole which was to the right.

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There is a really quick way to hollow out a part in SolidWorks that you may not be aware existed.  Most are familiar with the Shell command where you can remove a face or faces and shell the rest of the part.  However what most don’t realize is picking a face to remove is optional.  If you define a shell thickness but do not select a face to remove it will still shell, or hollow out, your part to a specific wall thickness.

Of course, remember eventually you still need to manufacture the part.

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When making a pattern with a lot of instances, performance can take a major hit when editing the part and any assemblies that contain it.  The reason for this is that SolidWorks is recreating the seed or parent feature(s) i.e. (Cut-Extrude -> Through All, Fillet on 4 edges) that you are making the pattern from.  Simply put, SolidWorks is calculating each feature for each pattern instance.  So if your features take one second to rebuild and you make a pattern of them 10 times, this will result in 10 seconds of rebuild time for SolidWorks to calculate the pattern.

In this example, the seed features to pattern are a diamond shaped Cut-Extrude with Fillets on multiple edges.  The pattern is 99 rows by columns (1881 copies) with the rebuild time on my computer calculating in at 215.98 seconds, approximately 3 minutes and 36 seconds, as shown by the Tools>Feature Statistics.
 

In order to improve rebuild time or increase performance, there is an options setting called Geometry Pattern located at the bottom of the pattern dialog box (see picture below).  Geometry pattern simplifies the calculations that SolidWorks has to perform.  Instead of recreating all of the patterned features at each instance, SolidWorks will simply ‘copy’ the geometry to pattern for each instance “as is”. 
 

In this example the rebuild time was drastically reduced by using the Geometry Pattern option as shown by the Tools>Feature Statistics; this same pattern rebuilds in just under 4 seconds.

 
Depending on the geometry of your parts, you may want to try this option which can greatly speed up your SolidWorks rebuild time and enhance performance.

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Have you ever wanted to quickly remove all the construction surfaces of a model before releasing it to downstream users? Or you might have encountered a part that had a bunch of construction surfaces cluttering up the model. Most of the time, users just hide the surfaces to clear up their screens. However removing construction surface geometry using the “Delete Body…” command is a best practice that helps to eliminate clutter and any confusion for downstream users.

“Delete Body…” is located in two places in SolidWorks. You can select “Delete Body” from the “Insert”, “Features” drop down menu. The preferred, easier way to remove All the bodies in one Body folder is to simply right click on either Surface or Solid Bodies folder and select “Delete Bodies…”(see picture below).

 

This feature can be easily suppressed or deleted to quickly gain access back to these construction surfaces if necessary.  It is usually easier to select the bodies directly in the two Surface and Solid Bodies folders rather trying to select them in the graphics area using the selection filter (F5). Using the “Delete Body” command at the end of the Modeling Process will not break or remove any features that are referencing the deleted construction surfaces. The Delete Body feature works on both solid and surface bodies. You can even remove solid and surface bodies at the same time. Extra solid bodies could cause errors with the part’s Mass Properties and those unwanted reference solid bodies should be removed using this technique.

Try the “Delete Body” command to quickly remove any unwanted bodies to help tidy up a part before you hand it off to a coworker or send it to customer or vendor.

 

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Join us for part two of a two part series where we discuss the tools available in SolidWorks Utilities.


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