# Coordinate system - Moment

**URL:** <https://prepomax.discourse.group/t/coordinate-system-moment/1867>\
**Category:** Feature Requests\
**Created:** [July 12, 2024, 12:34pm UTC](https://prepomax.discourse.group/t/coordinate-system-moment/1867 "2024-07-12T12:34:26Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ViV](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/viv/32/3262_2.png) [@ViV](https://prepomax.discourse.group/u/ViV)\
**Post date:** [July 12, 2024, 12:34pm UTC](https://prepomax.discourse.group/t/coordinate-system-moment/1867/1 "2024-07-12T12:34:26Z")

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Is it possible to add the selection of the coordinate system (see picture)?

 ![00](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/c/cde36ab37d6d0cb4ef3a3b04c546cdf26d6c8c05.png)

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**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\
**Post date:** [July 12, 2024, 12:38pm UTC](https://prepomax.discourse.group/t/coordinate-system-moment/1867/2 "2024-07-12T12:38:59Z")

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Check this thread: [Cylindrical coordinate system Rotational DOF's](https://prepomax.discourse.group/t/cylindrical-coordinate-system-rotational-dofs/1852)

There’s a pending discussion about the use of local coordinate systems for rotational degrees of freedom. We are not sure yet if it’s working properly in CalculiX.

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<div class="post-metadata">

**Author:** ![ViV](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/viv/32/3262_2.png) [@ViV](https://prepomax.discourse.group/u/ViV)\
**Post date:** [July 12, 2024, 12:57pm UTC](https://prepomax.discourse.group/t/coordinate-system-moment/1867/3 "2024-07-12T12:57:58Z")

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Overlooked. I will check.  
Thank you.

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**Author:** ![ViV](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/viv/32/3262_2.png) [@ViV](https://prepomax.discourse.group/u/ViV)\
**Post date:** [July 12, 2024, 1:08pm UTC](https://prepomax.discourse.group/t/coordinate-system-moment/1867/4 "2024-07-12T13:08:34Z")

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Forgot to mention: choosing Rectangular-CSys and not Cylindrical-CSys.  
Thanks again.

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**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [July 12, 2024, 1:28pm UTC](https://prepomax.discourse.group/t/coordinate-system-moment/1867/5 "2024-07-12T13:28:02Z")

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The moments are actually nodal forces applied to the rotational degrees of freedom 4, 5 and 6 in CalculiX. That is why I did not add the coordinate system to the moment load. But now I think a better option would be to support it and warn the user to double check the results.