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Setting dimension on construction lines causes other constrained lines to change

tgunrtgunr Member Posts: 44 ✭✭
edited November 2022 in Using Onshape
Having a bit of trouble here, I needed to shorten the overall length of a part ("lower") in the sketch "lower body" by about 1.5 mm so I created a dimension which said the current length was 45.456 and set it to 44 mm. The rest of the part I thought was constrained as all lines were black. When I changed the dimension  to 44mm the part got squished and I am not seeing how to set the constraints such that only the overall length will change. In hindsight, I should have created a variable for this dimension and used it in the beginning.

https://cad.onshape.com/documents/a2e83ea422689b0edcf47669/w/84cdcf21aba568248f951eb5/e/52ee62bf870f18507804b808

Comments

  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,349
    It's just not dimensioned right from a design/mfg point of view. 

    Senior Director, Technical Services, EMEAI
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,349
    Plus the sketch is too detailed - would be better split up into several for robustness.
    Senior Director, Technical Services, EMEAI
  • tgunrtgunr Member Posts: 44 ✭✭
    Hmm, ok. How did you determine that if you have time to explain. Need to learn how to do that!
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,349
    Years of study as a mechanical engineer  ;)
    Senior Director, Technical Services, EMEAI
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