Convenient tool / method for creating "tabs" (NOT sheet metal)

Answers

• bruce_williams Member, Developers Posts: 842 EDU

  February 2020 Answer ✓

  @tom_auger
  Onshape lets you reuse sketch so you can have the tab shapes on your original sketch and Extrude Symmetric or Up to face with offset and the other end with Second end position.

  www.accuratepattern.com

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• john_mcclary Member, Developers Posts: 3,938 PRO

  February 2020 edited February 2020

  The only thing naive about your approach is creating a sketch, then surface, just to thicken...
  
  If you are making a solid, just stick to solid modeling techniques until they "can't" do what you need.
  
  That being said:
  select the face
  create a sketch (shift+s) 
  draw a rectangle (g)
  click one corner of the box
  click the opposite edge
  set a dim
  extrude (new) -> set length
  Mirror (Part) -> (Add)
  
  Or you could sketch on the Front face of the part (the long face in my example) and draw two squares and make them equal length on each end.
  
  There is absolutely nothing wrong with either approach. It seems like a lot of steps but, sketch/extrude is the bread and butter of solid modeling. It just becomes quicker with practice.
  
  For solid modeling, only use surfaces if they shape is "funky"... or you need some sort of re-usable geometry to reference many features.
  
  edit: forgot to attach the gif...
  
  

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• steve_shubin Member Posts: 1,096 ✭✭✭✭

  February 2020 edited February 2020 Answer ✓

  @tom_auger
  
  
  

  YOU SAID — I'd love to do this without having to create a drawing just so I can extrude an edge that is already defined in some other geometry.

  OK I’m assuming when you said without creating a drawing, that you actually meant - without creating a sketch.
  

  You can create a flange by extruding an edge with thickness, using something called Thin-feature.
  

  
  

  https://cad.onshape.com/documents/24819ddab7dc83c810eb8246/w/927f8fded6e1be65852380a8/e/d4ef208f8075c2efd086c6be

  
  

  
  

  
  
  
  

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• steve_shubin Member Posts: 1,096 ✭✭✭✭

  February 2020

  @tom_auger
  
  YOU SAID — Is there such another clever way of accomplishing this ?
  
  Here’s a way that’s more than twice as fast as using the Thin-feature extrude method
  
  
  
  
  
  
  
  

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• tom_auger Member Posts: 116 ✭✭

  March 2020

  steve_shubin  that is EXACTLY what I was looking for! Thank you

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• tom_auger Member Posts: 116 ✭✭

  March 2020

  steve_shubin said:

  @tom_auger
  
  YOU SAID — Is there such another clever way of accomplishing this ?
  
  Here’s a way that’s more than twice as fast as using the Thin-feature extrude method
  
  
  > The screen capture is moving a bit fast and I'm not used to the mobile UI - in this example are you just creating a new sketch on the bottom face and then drawing a rectangle on it and extruding that? If so - are the two sketched "linked' in any way such that if the dimensions of the first sketch change (say the width of the box) then the second sketch will also scale its width (like when you Use an entity)?

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• steve_shubin Member Posts: 1,096 ✭✭✭✭

  March 2020

  @tom_auger
  
  

  YOU ASKED — are you just creating a new sketch on the bottom face and then drawing a rectangle on it and extruding that?

  ANSWER IS YES

  
  

  YOU ALSO ASKED — If so - are the two sketches "linked' in any way such that if the dimensions of the first sketch change (say the width of the box), then the second sketch will also?

  AGAIN, YES

  
  

  Sketch 2 automatically added in constraints that linked it to the box (the extruded Sketch 1). Then as Sketch 2 was extruded, those flanges became one with the box as the extrusion defaulted to ADD.

  
  

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