Unfolding a cone and making holes adaptive in sheet metal and assembly.

[PremTM]

Hi!

Any idea why I can unfold half a cone but I can't refold it? I know that due to the way it's been cut there are 2 places with a little more material, but basically the same piece unfolded and refolded previously in v. 2021...

File attatched below.

A tougher question:

Is there any good way of making holes adaptive between folded and unfolded state AND assembly? What I mean by that is I wish to have a cone with an offset bracket. I want to have them assembled using bolts and nuts and make it adaptive so that I can change the dimensions of the cone and holes placement and have it update + I want to be able to dimension holes in folded state in idw. I've been trying for many hours...

Using Inventor 2019 at the moment.

Thanks for any input.

[johnsonshiue]

Hi! There seems to be subtle difference in the side faces. They are not perpendicular to the sheet metal faces. Please also share Body.ipt. I would like to take a closer look.

Many thanks!

[BDCollett]

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@PremTM wrote:

Hi!

Any idea why I can unfold half a cone but I can't refold it? I know that due to the way it's been cut there are 2 places with a little more material, but basically the same piece unfolded and refolded previously in v. 2021...

File attatched below.

A tougher question:

Is there any good way of making holes adaptive between folded and unfolded state AND assembly? What I mean by that is I wish to have a cone with an offset bracket. I want to have them assembled using bolts and nuts and make it adaptive so that I can change the dimensions of the cone and holes placement and have it update + I want to be able to dimension holes in folded state in idw. I've been trying for many hours...

Using Inventor 2019 at the moment.

Thanks for any input.

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Can you share the whole assembly? Not completely sure your need for the adaptive between folded and unfolded. I would just use a top down method and model both parts in the same place so they all update. 

If you are using 2022 something you could do is have a model state with it folded and one unfolded version to get that data.

[johnsonshiue]

Hi! There is a little trick to make Refold work for this case. Something is indeed strange about the detail faces.

Move EOP above the Unfold feature. Use Thicken command -> uncheck "Auto-Blending" -> Intersect -> pick the inner face -> set distance to Thickness 1mm -> select inward direction. After that, move EOP to the bottom. Refold will work.

Many thanks!