Rip a pipe for flat pattern

Answers

• john_mcclary Member, Developers Posts: 3,934 PRO

  April 2018 edited April 2018

  https://cad.onshape.com/documents/28050bca2b1ddeb0acbab720/w/72369ffa7faabbf84de28ab1/e/83132e95ca640c16597dc091
  
  See example above
  
  What you do is draw your tube with a split circle
  extrude a surface using the split circle
  then use the sheet-metal tool to thicken that surface
  
  
  
  
  

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• brucebartlett Member, OS Professional, Mentor, User Group Leader Posts: 2,140 PRO

  April 2018 Answer ✓

  If the pipe is already created, you could first add the split to the pipe, then convert the outside face to sheet metal to get the flat pattern. 

  Engineer ı Product Designer ı Onshape Consulting Partner
  Twitter: @onshapetricks  & @babart1977   

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• bryan_lagrange Member, User Group Leader Posts: 824 ✭✭✭✭✭

  April 2018

  I find putting the k factor to 1 gives you a good flat pattern to work with. 

  Bryan Lagrange
  Twitter: @BryanLAGdesign
  
  

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• kevin_mason558 Member Posts: 46 EDU

  March 18

  @brucebartlett
  when I tried split with my pipe (made using frame tool) it splits straight through into two parts 
  is there a way of only splitting once? 

  Problem would be joining the two patterns on one face, if it's split in two 
  I have a pipe that is mitred then notch so there's a different shape on the two halves when it's flattened 

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• eric_pesty Member Posts: 1,862 PRO

  March 18

  kevin_mason558 said:

  @brucebartlett
  when I tried split with my pipe (made using frame tool) it splits straight through into two parts 
  is there a way of only splitting once? 

  Problem would be joining the two patterns on one face, if it's split in two 
  I have a pipe that is mitred then notch so there's a different shape on the two halves when it's flattened 

  The best way to do this is probably do a thin cut (make it less than the "minimum gap" in the sheet metal feature):
  
  
  
  Note that I could even do a sweep instead of an extrude to split both frame members in one go in this case

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