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Help converting physical drawing to Onshape sketch

alexcalexc Member Posts: 7 ✭
in Drawings
Hey,

I've been trying to convert a physical drawing plan that I have into an Onshape sketch, however each time I draw it I end up with a different total length. I never seem to be able to get a length of 11.06" (7+3.31+0.75) as shown in the top drawing.

Would somebody mind helping me out? Maybe I am reading the drawing incorrectly. Here's my document with 2 different sketches in it: https://cad.onshape.com/documents/ad4ccbc15c255dc63d5455d7/w/f3534cc285ade0e4e49c2079/e/9e52643d6e48cafac4bf697b

Many thanks




Comments

  • mahirmahir Member, Developers Posts: 1,307 ✭✭✭✭✭
    Looks like a combination of rounding error and driving the tail length using the tangency to the R3.34. If you relax one or more of the driving dimension, then you can easily massage the sketch into giving you the expected length. One example is if you make the 2.86 dimension driven, and change the overall length to driving, then you get what you want. And the 2.86 only increased to 2.865, which might be what it was in the first place before truncation to 2 decimals.



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