Needs to Roof Flatten by Sheet metal flatten or Surface flatten

Discussion created by Parth Patel on Jul 17, 2019
Latest reply on Jul 17, 2019 by Kevin Chandler

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I am trying to do roof flatten in my design, I did it but after flatten it looks that shape is not proper with fits to the circular wall, can anyone look at it and suggest any better idea to get the roof done with proper flatten patten. I try to create offset surface of the roof and then try to flatten that surface with surface flatten command but my surface flattens command gray out. it is not working in student version solidworks.

I appreciate if anyone has a different idea to create roof by splitting into 3 parts instead of 2parts.

I attached .rar file of my part please look at it.

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Final 3D Part.zip3.9 MB
Final 3D Part.rar3.9 MB

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9 Replies

Frederick Law Jul 17, 2019 9:27 AM
Attach your in ZIP.
Most don't have RAR.
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John Stoltzfus Jul 17, 2019 9:41 AM
Any SolidWorks Files - Upload using ZIP

Any Inventor Files - Upload using RAR... (or paper airplane)
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- Frederick Law @ John Stoltzfus on Jul 17, 2019 9:31 AM
  Yes, SW user are not technical enough to use RAR
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Parth Patel Jul 17, 2019 9:34 AM
I uploaded ZIp file. thanks for your reply.
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Frederick Law Jul 17, 2019 9:34 AM
2 pieces is good, as long as it fit on a sheet.
Splines looks good but most CNC can't cut splines.
They'll be reduced to short line segments.
Also, how do you inspect spline in the shop? CMM every part?
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- Parth Patel @ Frederick Law on Jul 17, 2019 9:40 AM
  No, we are not using CMM. any other way to do flatten roof without change of spline shape?
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Heiko Sohnholz Jul 17, 2019 10:06 AM
Hi,
although SWX doesn't give you an error message when using elliptical sketch elements for building up a SM part, it doesn't deliver proper results. This is a known limitation. We have some experiences on this (trough our own SWX hotline).
So i would recommend to change the roofs profile slightly to (two) arcs. This will result will differ only for a few mm wich is "nothing" compared to the extends of your construction.
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Mark McMullen Jul 17, 2019 11:53 AM
Turn off simplify bends under flat-pattern #24 and # 25, you'll get the results you want.
I find splines not to be sheetmetal friendly.
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Kevin Chandler Jul 17, 2019 12:23 PM
Hello,

Neither of the two roof cuts have normal cut selected.
I changed the inner hole's cut to normal cut and got this for a flat pattern:

I get an error trying to check normal cut for the outer cutting, so I stopped.

Kevin
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Needs to Roof Flatten by Sheet metal flatten or Surface flatten

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