Resizing a pan & keeping patterned holes central

Rickpage76 · ‎06-30-2016

Hi,

Could somebody please point me in the right direction with this no doubt very simple issue.
Just for the record I've had no tuition except youtube videos & have no previous cad experience!

Using Inventor 2016 I'm trying to make a basic door profile lets say 2000x850mm which I'd then like to be able to adjust sizes quickly to suit.
Along the height of the pan is a series of holes formed from the center point using a rectangular pattern.

My problem is when I resize the pan it only does so from 1 side, leaving all the holes offset?
The main pan is in one sketch & the holes are in another.
I've tried using so many different methods I've finally given up.

Please see the pictures to see exactly what I mean

Any help greatly appreciated.

JDMather · ‎06-30-2016

Attach your *.ipt file here and end all doubt.

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Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional

Rickpage76 · ‎06-30-2016

Hi, As requested the .ipt file for my offending part!

Can I just say since this drawing I've been trying so many different constraints.

Until I understand this issue I can't make anything adaptive.

Thanks for your help.

JDMather · ‎06-30-2016

Do not use sketch patterns - use Feature Patterns for the holes.

and

your sketches are not fully defined anyhow?

You should probably install Service Packs 1 and 2 as well.

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Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional

Rickpage76 · ‎06-30-2016

Ok, So the feature pattern would be in the sheet metal tab?
Could you be a little clearer on how to fully define the sketch.
Looking forward to trying these changes at work tomorrow.
Cheers