topic Default Hem Length in Inventor Forum

Default Hem Length

jbwaiteG7526 — Thu, 27 Mar 2025 14:45:21 GMT

On a sheet metal part, when you select to add a HEM feature, the default for the length is "Thickness * 4". I know that I can change it but was wondering if there is a way to change the "default" value so I don't have to change it every time. Is it a value defined in one of the .xml files ? I did not find it in the sheetmetalrules.xml file.

I have a template for staring sheet metal parts with a rule that allows for selecting a material ( stock number ) from a drop down list of all the sheet metal raw materials that we currently carry. Can the hem length be set from that iLogic script ? I tried using :

HemDefinition.SetSingleHemType( "Thickness * 0.5", "0.375 in" )

to set the gap and the length but it gives and error

"Reference to a non-shared member requires an object reference."

Re: Default Hem Length

johnsonshiue — Tue, 01 Apr 2025 02:45:03 GMT

Hi! Unfortunately, there is no way to change the default value at the moment.

Many thanks!

Re: Default Hem Length

ProductivCADUser — Fri, 23 Jan 2026 11:49:27 GMT

Are there any plan to add this feature to change the default value?

There are good reasons to change the default value.
With TRUMPF bending machines, the gap must be 0.1 mm within the 3D-Model so that the bending program can automatically recognise and process the sheet metal feature.

Re: Default Hem Length

johnsonshiue — Fri, 23 Jan 2026 23:52:58 GMT

Hi! There has been a persistent effort on modernizing Inventor's user interface, trying to convert the traditional dialogs to Property Panels (Extrude, Revolve, Sweep, and others). One of the advantages of Property Panels is the ability to define "Presets" (the default values for certain input). Some Sheet Metal commands like Flange, Contour Flange, Face, Punch Tool, and others have been converted. But not all of the commands have been converted yet. They are more like working-in-progress.

Many thanks!