SQUARE TO ROUND TRANSITION 1

[chivo]

I just can´t figure out how to get the flat pattern (in sheet metal feature) when modeling a hopper (square to round transition)

Cone can be done easy, any other bending piece... but a cone with square base?

Does anyone have done this before?

Please let me know, because I hate going back to AutoCAD to do this flat patterns manually.

Thanks in advance

 

[Folke]

Try making a square sketch with tiny rounds (0,1) for the square sketch and loft it to a sketch with tiny traight lines and big rounds for the circular top(it appears to be round but the edges may help the program unbend the cone)

 

[btrueblood]

I don't think the Inventor sheet metal module will let you "unbend" a loft.

 

[pgannon18]

Did you highlight the inner surface prior to creating the flat. Sometimes you need to do this for objects like lofts to unfold.

Check out this post.

http://www.mcadforums.com/forums/viewtopic.php?t=5044&highlight=iv10+flat

This one may help you as well.

http://discussion.autodesk.com/thread.jspa?messageID=5322524

 

[SugarRat]

Sorry to burst the bubble here, Inventor does not do transitions - round to square - unfolding when using the sheetmetal function (or any other for that matter). One can unfold round extrusions or lofts providing there is no transition from and angular to a rounded shape.

Maybe in 2008 something like will become possible. Best software to use for something like this would be Striker (AutoCAD add-in) or Rhino or something similar.

 

[Adrian2]

Hi Chivo;

I downloaded a square to round transition as you describe many months ago from a website in denmark. Trouble is I dont remember the website url.

The problem with flat pattern for square to round transitions, is that there is more than one way a sheet metal mechanic might go about making them. I also have a sheet metal layout handbook which outlines the process for a square to round transition. You might find this useful to develop your own inventor model based on the preferred shop practices your own sheet metal guys will use.


Best Regards



Adrian Dunevein
AAA Drafting Services

http://www.aaadrafting.com

http://home.cogeco.ca/~adunevein/

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