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Miter Help Please

Question asked by Matt Juric on Nov 30, 2018
Latest reply on Nov 30, 2018 by Maha Nadarasa

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Can someone, or many someones, send me in a direction of "Things to try" to get these miters in? Part is sheet metal, which admittedly I'm not great with. Pictures attached. Any help would be appreciated.

The surfaces are not perp to each other and are all at different angles. That means the flanges are all coming off at different angles. For instance in the first picture the flange on the left is 90 degrees. The one on the right is at 135 degrees and could probably be at any angle and length necessary to match and or get a miter to work.

Chad Moles Nov 30, 2018 1:15 PM

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OR, If you used Edge flanges, you can edit the flange profile to add the tab while adding the edge flange. This will result with the tab going thru the bend and you would not have to modify your flat pattern afterwards.

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Shawn Stugard Nov 30, 2018 11:38 AM
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Watch a tutorial on "miter flange". Instead of creating the upright flange and then the edge flange, you should construct them all as one by sketching. Then it will miter the corners as you desire.
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- Matt Juric @ Shawn Stugard on Nov 30, 2018 11:50 AM
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  I tried that but it would not work. As soon as I picked the second edge the preview disappeared. When I checked the finish check it gave me an error of "Missing edges". I tried to look up what that error meant and found nothing.
  
  My guess is that miter edge won't work in this situation because the corners are at different angles, flanges are at different angles and are different length. The difference between what you have and what I have is that the vertical walls are not vertical, 90 degrees. The sides are vertical but the front panel is at 30 degrees and the back panel is at 50 degrees.
  
  I've used miter edges in situations like you show above, square edges, and it worked.
  
  Thanks,
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- Matt Juric @ Shawn Stugard on Nov 30, 2018 11:53 AM
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  Maybe Miter Edge does not work because I also have separate parts? I could tray remodeling it with bends and folds now that I have the shape I want figured out.
  
  Thanks
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  - Bob Gooding @ Matt Juric on Nov 30, 2018 11:58 AM
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    I would start with a solid and convert to Sheet Metal because that would enable you derive the two flange angles from a common plane which would then allow you to alter their sketches to meet nicely. Good Luck
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    - Matt Juric @ Bob Gooding on Nov 30, 2018 1:04 PM
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      I will try this. I just tried creating it from sheet and miter still wouldn't work.
      
      Thanks
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  - Shawn Stugard @ Matt Juric on Nov 30, 2018 12:00 PM
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    "Maybe Miter Edge does not work because I also have separate parts?"
    
    Yes, as far as I know sheet metal does not support multi body.
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  - Chad Moles @ Matt Juric on Nov 30, 2018 12:45 PM
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    Matt,
    If you cannot redraw these parts as Bob suggested, The only way is to add a tab on each of the flanges and manipulate the sketch for the tabs to get the desired result. In doing this, you will also have to manipulate the flat pattern dxf and remove the tear line.
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    sm Assem1.zip184.0 KB
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    - Chad Moles @ Chad Moles on Nov 30, 2018 1:15 PM
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      OR, If you used Edge flanges, you can edit the flange profile to add the tab while adding the edge flange. This will result with the tab going thru the bend and you would not have to modify your flat pattern afterwards.
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      example 2 sm Assem.zip182.4 KB
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      - Matt Juric @ Chad Moles on Nov 30, 2018 1:58 PM
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        I think this is what I'm going to have to do. Did a solid and converted it to sheet metal. Miter edge still didn't work.
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      - Matt Juric @ Chad Moles on Nov 30, 2018 2:05 PM
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        I messed with this for a bit and I think this will be as close as I can get. I think if I mess with bends, angles and angles on the miters I can get it close enough that the sheet metal guys can close the gaps.
        
        Thanks,
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- Maha Nadarasa @ Shawn Stugard on Nov 30, 2018 3:05 PM
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  Problem is this has to follow after a condition.
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