# Parametric workflow wrong?

**URL:** <https://discourse.shapr3d.com/t/parametric-workflow-wrong/37873>\
**Category:** Modeling Questions\
**Created:** [May 9, 2025, 11:25am UTC](https://discourse.shapr3d.com/t/parametric-workflow-wrong/37873 "2025-05-09T11:25:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Timmy](https://avatars.discourse-cdn.com/v4/letter/t/ed8c4c/32.png) [@Timmy](https://discourse.shapr3d.com/u/Timmy)\
**Post date:** [May 9, 2025, 11:25am UTC](https://discourse.shapr3d.com/t/parametric-workflow-wrong/37873/1 "2025-05-09T11:25:43Z")

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Hey there, Shapr3D world!

Long time OnShape user here. I frequently design for custom 3D printing solutions in a professional setting. I’ve settled with OnShape because it simply works for me, but I don’t think it’s worth the price. So, I’m exploring other options. I’ve tried Shapr3D a number or times now, and was hoping for its parametric promise to have matured now. It appears it hasn’t, but perhaps my workflow is just wrong. Please find what I’m doing in the video below:

[![](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/5/6/56d3fe86bfa832f7a82ca8c25c5856c17128e5cf.jpeg "Shapr3D parametric fail") ](https://www.youtube.com/watch?v=RG6YZMmBpBY)

When changing the sketch, I expected the body to update accordingly when exiting the sketch. However, the subtracted region just disappeared. Do I need to re-subtract the sketch from the body every time I update the sketch? Or am I just doing something wrong? Forgive my ignorance if that is the case. In the Revolve, Subtract, and Mirror tutorial, it became clear to me that this may only be possible if a part of the sketch is changed, but not when something is added.

Another nuisance I experienced was when I’m viewing the model from the top-left-front corner, rotating left and right suddenly rotates the model view in a 2D-fashion, instead of moving approx. around the x-axis as expected. When resetting the view, it does rotate around the x-axis, but shortly after it starts swivelling again. Up and down, however, do always work as expected.

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<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [May 9, 2025, 1:29pm UTC](https://discourse.shapr3d.com/t/parametric-workflow-wrong/37873/2 "2025-05-09T13:29:53Z")

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> [@Timmy](#):
>
> I expected the body to update accordingly when exiting the sketch.

It can’t update after such changes automatically. Notice you have a lot of errors in history after you changed the sketch. You have to fix these errors, in your case you need to select newly added surfaces of your sketch. That can be done in history list easily.