Understanding Curves: Air Intake Exercise - What start/end order do I use Bridging Curves?

Answers

• CADNurd Member Posts: 143 ✭✭

  April 23

  That's one of those tools which has had lots of upgrades over the years, except for its associated help files.

  A couple of prompts for your LLM of choice . . .

  In Onshape - when was the 'Bridging Curve' introduced and what problems was it trying to solve?

  and

  In Onshape - with 'Bridging Curves' does the order of edge or point selection affect the resulting shape of the curve?

  Here's Google's attempt at an explanation - https://share.google/aimode/LulrmVu1JV5KT7xoj

  Unemployed Onshaper - Operating on European time - More of me here ➤➤ https://linktr.ee/Liam.G

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• CADNurd Member Posts: 143 ✭✭

  April 23 edited April 23

  Ok. I've just spent an hour experimenting with 'Bridging Curves' because I realised I didn't fully understand them myself.

  Edit: Specifically using the G3 continuity option.

  My observations:

  • VERY un-intuitive, especially those draggable white arrows, three for each start and end point
  • at the very least, those arrows need to be color-coded in some way
  • completely different initial results depending on selection order
  • the tool 'should' be smart enough to detect which 'end' of an edge is selected in order to suggest a better first guess

  A useful playground I made - have a go at adding the remaining three Bridging Curves with G3 continuity - https://cad.onshape.com/documents/c5c668a888cca9e5718a94c5/w/937dc1b803a314c1b486d6c8/e/d60c90a4a8d8edce42af1560?renderMode=0&uiState=69e9fbc29e20224e14c17fe4

  Unemployed Onshaper - Operating on European time - More of me here ➤➤ https://linktr.ee/Liam.G

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• roman_jurt190 Member Posts: 67 EDU

  April 23

  I love bridging curves, and I also think the standard help content is fairly straightforward.

  • You can also select all lines and points before starting a new bridging curve
  • The sequence of where you start doesn’t matter in my experience.
  • Colored arrows… mmm… not really needed in my opinion – just zoom in a bit:)

  

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• CADNurd Member Posts: 143 ✭✭

  April 23

  https://forum.onshape.com/discussion/comment/129896#Comment_129896

  Standard help is 'far' from complete IMHO. There is only a single video that is many years old and it doesn't demonstrate any of the newer options that the tool now contains.

  Also, the direction changing buttons - indicated below - are not mentioned anywhere, and they make a huge difference, which I only 'accidentally' discovered.

  

  Unemployed Onshaper - Operating on European time - More of me here ➤➤ https://linktr.ee/Liam.G

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• roman_jurt190 Member Posts: 67 EDU

  April 23

  Ok, but by the time you reach the point in your Onshape learning path where you start using bridges, you should already have seen and used the same orientation‑switching arrows before, for example in extrudes, right?
  
  But I’m probably a bit biased toward arrows… and I’m probably holding some kind of record for the highest number of different arrows in a single feature with my new custom feature, hehe:)

  

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• MDesign Member Posts: 1,375 PRO

  April 23

  uhm…. I think I need to explore that custom feature.

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