topic Re: Component Pattern with Parametric modeling in Inventor Forum

Component Pattern with Parametric modeling

jmckone9Z5PD — Sat, 13 Sep 2025 13:51:56 GMT

Is there a way to set up the component pattern function to allow for parametric modelling changes? The assembly is a basic window with the size of all components driven from OsmW (outside measurement Width) and OsmH. All the major components work however, items (such as staples) that are modelled using 'component pattern' do not change with size. The rule would be quite simple - OsmW/8 would give the quantity required for width, however if there is a way to use this in 'component pattern' I have not found it.

Re: Component Pattern with Parametric modeling

kacper.suchomski — Sat, 13 Sep 2025 21:53:50 GMT

Component patterns handle parametric equations in exactly the same way as all other parametric modeling commands.

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Re: Component Pattern with Parametric modeling

jmckone9Z5PD — Sun, 14 Sep 2025 12:49:36 GMT

What I was trying should work but I get this error - I know why, I can't figure out what to do about it.

Here is the user parameters table - I have set this up so OsmW and OsmH are in the the assembly and are used to define the overall size of the window.

With the stapes set in 1" from edge of frame the spacing should work out to (18 in - 2 in)/8 in = 2 ul. In this case it work out to be an even number, however the value should be rounded to nearest integer.

This is a look at the window frame with staples.

Re: Component Pattern with Parametric modeling

kacper.suchomski — Sun, 14 Sep 2025 15:18:22 GMT

@jmckone9Z5PD wrote:

What I was trying should work but I get this error - I know why, I can't figure out what to do about it.

We don't know what you entered in the equation window or what the entire parameter structure looks like.

Attach your files.

@jmckone9Z5PD wrote:

With the stapes set in 1" from edge of frame the spacing should work out to (18 in - 2 in)/8 in = 2 ul. In this case it work out to be an even number, however the value should be rounded to nearest integer.

Also, your description is unclear – you mentioned that the interval should be... and then entered an equation with a dimensionless result.

The interval must be in units of length, not cardinality.

Describe exactly what you have and what you're missing.

Which parameters are fixed and which are calculated.

And in which file you intend to edit variables to rebuild the model.

Re: Component Pattern with Parametric modeling

jmckone9Z5PD — Mon, 15 Sep 2025 12:20:25 GMT

The spacing is consistent at 8" - it is only the number of staples that need to be calculated depending on the OsmW or OsmH.

Re: Component Pattern with Parametric modeling

dan_inv09 — Mon, 15 Sep 2025 14:38:41 GMT

Please show the formula you are using.

If it is coming out in/ul when it needs to be ul then you need to look at your formula more carefully, something isn't "adding up" quite right.)

Re: Component Pattern with Parametric modeling

jmckone9Z5PD — Mon, 15 Sep 2025 16:31:28 GMT

Just had to change the formula from (OsmW - 2 in) / 8 ul to (OsmW - 2 in) / 8 in. Once this worked, I then modified the formula to round(( OsmW - 2 in ) / 8 in). I have tested this over a few different widths and it works.
Thanks for the assistance.

Re: Component Pattern with Parametric modeling

SBix26 — Mon, 15 Sep 2025 20:21:58 GMT

You may also want to consider the ceil function (or floor function) in place of round. ceil((OsmW - 2 in) / 8 in) will always round down to the nearest integer value, so you don't get an extra staple when the distance is halfway to the next interval.

Sam B

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