Tech Tip - Mirrored Sheet Metal Parts in SOLIDWORKS

Tech Tip - Mirrored Sheet Metal Parts in SOLIDWORKS
Posted in: Mechanical Design

When designing sheet metal parts, it’s very common to have an asymmetric part that requires an exact opposite hand (mirrored) version. SOLIDWORKS has always had a great part mirroring function that accomplished this in no time, eliminating the need to completely create the new part from scratch. However, if the part was made with Sheet Metal features, the manufacturing information was not transferred to the mirrored part. This information is critical when documenting the mirrored part on a production drawing. Introduced in SOLIDWORKS 2015, when creating mirrored versions of sheet metal parts it is now possible to transfer the sheet metal and flat pattern information from the original part to the mirrored part, saving you a huge amount of time during the drafting phase.

The manufacturing information that can be transferred to mirrored sheet metal components includes:

  • Flat pattern geometry                                   •     Bend lines
  • Fixed face                                                         •     Bend parameters
  • Grain direction                                               •     Sketch transformations
  • Faces to exclude                                             •     Forming tool information

Let’s take a look at the process to see how this is done. To create our mirrored part,we select the mirror face, then click Insert > Mirror Part.

Insert menu

So far, so good. Nothing new to the workflow yet, but now here’s where things get interesting! In the PropertyManager, under Transfer, select:

Insert part menu

Sheet metal information: Transfers the sheet metal and flat pattern information from the original part to the mirrored part, such as fixed face, grain direction, bend lines, and bounding box.

Unlocked properties: This option allows you to edit the sheet metal definition in the mirrored part, which will update the cut list properties. This applies only to new feature properties, not the imported mirrored body.

Now complete the operation by clicking the green check and let’s see what kind of goodies came over into our new, mirrored part. The new part retains the sheet metal information from the original part. If we expand the FeatureManager, we can access all of the transferred properties and information. First, in the “Sheet-Metal” folder, we can see that we have the Sheet-Metal feature, which is editable (via RMB or Context Toolbar) because we unlocked the properties when we created the part. If we needed to change out the Gauge Table, thickness and bend parameters, and Auto-Relief settings, that’s now possible.

Bracket Mirrored Image

Next, the Mirrored Part feature contains Cut List and bend information. The Cut List properties are available. Note: if you RMB on the body feature in this folder and select Edit Definition, you are taken back to the Transfer property manager in case you need to include or exclude certain things from your model.

Cut-list properties menu

And lastly, the “Flat-Pattern” folder contains the flat pattern information. You can edit the Flat-Pattern feature to change things like the Fixed Face, Corner Treatments, Grain Direction, and Faces to Exclude. The Bend Lines and Bounding Box sketches are also contained here, in addition to the Flattened Bends. Just like a native sheet metal part!

Bracket mirrored menu

All of this information in the mirrored part makes the drafting side of this design much, much easier. The information for Bend tables, Cut Lists, Flat Patterns, etc. are all contained in the part and can be used on your production drawings to fully detail the design in a much more automated way without having to recreate things that were already present in the original part.

June 6, 2016
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Comments
Dan J Murphy
July 20, 2021
Todd, great article! Can any of the sheet metal info for the mirrored part be obtained after its creation? My company has many parts that were made without these crucial steps. I'm now faced with re-creating them in order to get the flat pattern info. If you have any tips or suggestions that might help me out, I'd love to hear them. Thanks!!
Lauritz Berg
February 14, 2022
What is the upside of this compared to insert part -> mirror ? I can only see a big downside and that is that you are not able to change the mirror plane after doing a mirror part. Would the best practice not even be: Save bodies -> mirror ? With save bodies you'd have something in the feature tree telling you when you exported this into something else...

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