Results 1 to 5 of 5

Thread: Sheet Metal - Round To Elipse Transition

  1. #1
    Member
    Join Date
    2009-03
    Posts
    13
    Login to Give a bone
    0

    Default Sheet Metal - Round To Elipse Transition

    Hello All,
    I’m using Inventor 2020 and trying to create a sheet metal transition piece out of 14 gauge (0.0751”) stainless sheet. The transition is 4” long. One end is an ellipse with the major axis being 6.38” and the minor axis being 6”. The other end is an 8” diameter circle. I've attached a pdf file with this text and some screen captures. I've also attached the ipt file.
    I sketched the ellipse on the XZ plane and 8” circle on a work plane 4” away.
    I used “Patch” to create a surface between the ellipse and the circle.
    I used “Thicken” to create the transition (shown below). I “thickened” inward.
    I used “Convert to Sheet Metal” and set the Sheet Metal Defaults.
    I used the XZ plane to create a sketch and projected the Y axis and the outer ellipse on the sketch. I created a point on the ellipse and horizontally constrained it to the projected Y axis point.
    When I try to Single Point “Rip” the piece, I select the outer surface as the Rip Face and regardless of the Gap Value or the Rip Direction I specify, I can’t select the point on the sketch. FYI, I’ve also tried creating the Rip Point at both ends and between the two ends without success.
    Anyone know how to get this to work or create the transition a different way?
    Thanks for your time and help.

  2. #2
    I could stop if I wanted to
    Join Date
    2015-12
    Posts
    291
    Login to Give a bone
    0

    Default Re: Sheet Metal - Round To Elipse Transition

    I do not see the attachments.

  3. #3
    Member
    Join Date
    2009-03
    Posts
    13
    Login to Give a bone
    0

    Default Re: Sheet Metal - Round To Elipse Transition

    Not sure what happened the first time I tried to upload the files. I believe they are attached now.
    Thanks.
    John
    Attached Files Attached Files

  4. #4
    I could stop if I wanted to
    Join Date
    2015-12
    Posts
    291
    Login to Give a bone
    0

    Default Re: Sheet Metal - Round To Elipse Transition

    I was able to get it to rip using a a lofted surface approach. Does this give you what you need?
    Attached Files Attached Files

  5. #5
    Member
    Join Date
    2009-03
    Posts
    13
    Login to Give a bone
    0

    Default Re: Sheet Metal - Round To Elipse Transition

    I was hoping to see the exact steps you used, but couldn't open your file because my version of Inventor must be older than yours.
    In the past I've only used LOFT to create solids. I created the surface using LOFT and was able to RIP it.
    Thank you for your help.
    Kind Regards,
    John

Similar Threads

  1. Replies: 0
    Last Post: 2015-08-07, 05:34 PM
  2. Replies: 0
    Last Post: 2014-12-01, 03:49 AM
  3. Unfoldable True Square to Round Sheet Metal Transition
    By inventor.wishlist1738 in forum Inventor Wish List
    Replies: 3
    Last Post: 2013-02-05, 04:36 AM
  4. Copy & utilize sheet metal rules on Derived & Mirrored sheet metal parts
    By Wish List System in forum Inventor Wish List
    Replies: 0
    Last Post: 2012-10-18, 12:40 PM
  5. Circle to Rectangle Sheet metal transition
    By jsh in forum Inventor - General
    Replies: 4
    Last Post: 2008-07-12, 06:01 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •