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Post 1 of 13

Flattening a 3D solid

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01-23-2013 12:07 PM

I am drawing a column and I need to flatten out a section of it to get true size and shape to constructe a template.

Any help is appreciated.

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Post 2 of 13

Re: Flattening a 3D solid

01-23-2013 12:20 PM in reply to: amber_troyer

Your sketches are not constrained.

I recommend you start here.

http://home.pct.edu/~jmather/SkillsUSA%20University.pdf

 

Then I would use the technique presented here (or something very similar)

http://forums.autodesk.com/t5/Autodesk-Inventor/How-to-draw-segment-elbow-90-degrees-and-create-Flat...

 

You should also install Service Pack 1.1

http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=20442029&linkID=9242019

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Post 3 of 13

Re: Flattening a 3D solid

01-23-2013 01:20 PM in reply to: JDMather
Thanks! I'll take a look. I also have a different take on what I need in another file. Would there be anything I could do to make it flattened to create a template? Thanks, again.
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Post 4 of 13

Re: Flattening a 3D solid

01-23-2013 05:03 PM in reply to: amber_troyer

You were missing so many dimensions it is nearly impossible to figure out your design intent, but - check the Flat Pattern in this file.

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Post 5 of 13

Re: Flattening a 3D solid

01-24-2013 06:23 AM in reply to: amber_troyer

In my last message I don't think that the file got uploaded. This is the exact piece that I need. I know there are no dimensions, to get the piece I needed I had to delete the constraints. It is the correct size however.

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Post 6 of 13

Re: Flattening a 3D solid

01-24-2013 06:30 AM in reply to: amber_troyer

amber_troyer wrote:

....to get the piece I needed I had to delete the constraints.


I don't understand that workflow.

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Post 7 of 13

Re: Flattening a 3D solid

01-24-2013 06:40 AM in reply to: amber_troyer

I can re-draw the part and show step by step what I did to get, would that help?

 

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Post 8 of 13

Re: Flattening a 3D solid

01-24-2013 06:44 AM in reply to: amber_troyer

I think you will need to explain the design intent.

Looking at your model I personally have no confidence that I know what you are trying to achieve or that you are using the correct technique.  That spline looks like a bit of a mess to me.  Is the surface really a revolution?  What is the purpose of the empty 3D sketch?  Why isn't the circle in Sketch2 at the origin?

 

If this must be a Revolve rather than an Extrude - you will not be able to Flatten in Inventor.

You will need some 3rd party software (I have heard Autopol, but have no experience with it).

 

I suspect that spline could be replaced with a line and arc or multiple arcs and be well within whatever manufacturing tolerance you have.

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Post 9 of 13

Re: Flattening a 3D solid

01-24-2013 07:47 AM in reply to: amber_troyer

Without doing the revolve I cannot get the desired shape, unless you know another way to go about it. I am "attempting" to draw a column for a water tower. This is the piece that meets the base of the container. I am wanting to create a template to cut the curved piece accurately, but I seem to be failing miserably. I have redrawn the piece keeping all the constraints; I have also included a screen shot of the original CAD drawing. Hopefully I am not a lost cause and maybe you can help point me in a better direction.

 

Thanks.

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Post 10 of 13

Re: Flattening a 3D solid

01-24-2013 07:57 AM in reply to: amber_troyer

The blue geometry is a line, not a spline. (and it appears that it should be at centerline of the column which yours is not)

The yellow geometry is most likely an arc, not a spline (you can check in AutoCAD with the List command).

The column appears that it should be at an angle.

 

The file I attached earlier showed how to make a template that can be wrapped around the column to show where to cut.

It appears to me that you are concentrating on the wrong part of the problem.

 

If I understand the problem - this one should be pretty easy to figure out.

Can you attach the dwg here?

 

Are you not after something like this as a template that can be wrapped around the column?

Template.png

 

If so, the template could be "ripped" at the short side (as I did)  or the long side

 

Rip.png

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