Applying Linear Pattern to inside curved surface

Answers

• mahir Member, Developers Posts: 1,317 ✭✭✭✭✭

  May 2020 Answer ✓

  I don't know what the intended pattern is supposed to look like, but here's one example of how it could be done. FYI I had to clean up your Main Section sketch to make it symmetrical and fully dimensioned. Otherwise, the patterns wouldn't merge properly.
  
  https://cad.onshape.com/documents/4142e516888d1483a4e05127/w/7e390dd28118bfa6f4d91bfa/e/7cb9ece468ec420c76cdbe02
  
  

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• ProblemSolver Member Posts: 15 ✭✭

  May 2020

  Thank you Mahir, this change that you have done achieves exactly what I was after. Thank you so much, I am over the moon with appreciation. Exactly what was the issue, so that I can avoid this problem from here on?

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• mahir Member, Developers Posts: 1,317 ✭✭✭✭✭

  May 2020

  No problem. If you look at your version of the Main Section sketch, it was missing controlling dimensions and relations. So I dimensioned one arch radius and set the other equal to it. I also positioned all the lines with coincident/horizontal constraints and added dimensions for the separation between arches. All of those dimensions were just slightly off by a fraction of a millimeter, which made patterning difficult since the tile bodies weren't making contact with the arches.Once that was fixed, it was just a matter of adding a circular pattern to tile one arch and then a linear pattern to tile the other two arches.
  
  
  

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• ProblemSolver Member Posts: 15 ✭✭

  May 2020

  Many thanks again Mahir for your explanation of the problems that you fixed for me. 
  I have been removing some of the highlighted constraints when the sketch title appears in red. 
  From here on I will delete a constraint one at a time until it repairs the issue (until the Red text changes back to black), then I will undo the deletion and move onto to next constraint (stepping through systematically) until I find the conflicting constraint. 

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