# CalculiX source code repository

**URL:** <https://calculix.discourse.group/t/calculix-source-code-repository/84>\
**Category:** Code development\
**Created:** [August 6, 2020, 4:19am UTC](https://calculix.discourse.group/t/calculix-source-code-repository/84 "2020-08-06T04:19:56Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![benzwick](https://avatars.discourse-cdn.com/v4/letter/b/a4c791/32.png) [@benzwick](https://calculix.discourse.group/u/benzwick)\
**Post date:** [August 6, 2020, 4:19am UTC](https://calculix.discourse.group/t/calculix-source-code-repository/84/1 "2020-08-06T04:19:56Z")

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Is there an official source code repository for CalculiX where users can check what has been changed and submit pull requests, issues etc.?

EDIT: I just realised that this was already answered here: [Build failures with GCC 10 - #3 by dhondt](https://calculix.discourse.group/t/build-failures-with-gcc-10/76/3)

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**Author:** ![imirzov](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/imirzov/32/1304_2.png) [@imirzov](https://calculix.discourse.group/u/imirzov)\
**Post date:** [August 19, 2020, 5:34pm UTC](https://calculix.discourse.group/t/calculix-source-code-repository/84/2 "2020-08-19T17:34:31Z")

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There is a GitHub group for CalculiX-related projects:

> **[CALCULIX](https://github.com/calculix)**
>
> A Free Software Three-Dimensional Structural Finite Element Program - CALCULIX

I’ve created this group in February 2020 having a dream that one day it will become official.

Dear all, if you’d like to join this group - please, post here your GitHub username - I’ll send an invitation.

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**Author:** ![dhondt](https://avatars.discourse-cdn.com/v4/letter/d/7bcc69/32.png) [@dhondt](https://calculix.discourse.group/u/dhondt)\
**Post date:** [September 25, 2022, 5:26pm UTC](https://calculix.discourse.group/t/calculix-source-code-repository/84/3 "2022-09-25T17:26:43Z")

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Dear CalculiX users,

a couple of days ago I opened a Github repository with the name CalculiXSource for the source code. I will do the same for the documentation in the near future.

Best Greetings,

Guido

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**Author:** ![Calc\_em](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Calc\_em](https://calculix.discourse.group/u/Calc_em)\
**Post date:** [September 25, 2022, 6:20pm UTC](https://calculix.discourse.group/t/calculix-source-code-repository/84/4 "2022-09-25T18:20:09Z")

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@dhondt Great, we now have a new, much more organized place for bug reports and feature requests. I think that it deserves a separate announcement (possibly pinned) on the forum so that other users don’t miss it.

Here’s a link to this repository: [GitHub - Dhondtguido/CalculiXSource: This repository contains the source files of CalculiX, a three-dimensional Finite Element Program (www.calculix.de).](https://github.com/Dhondtguido/CalculiXSource)

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**Author:** ![andnee](https://avatars.discourse-cdn.com/v4/letter/a/87869e/32.png) [@andnee](https://calculix.discourse.group/u/andnee)\
**Post date:** [July 28, 2025, 7:54am UTC](https://calculix.discourse.group/t/calculix-source-code-repository/84/5 "2025-07-28T07:54:45Z")

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Hi @dhondt ,

I have a small request for a modification in the documentation concerning Johnson Cook. It appears that defining the _PLASTIC tag is not enough, you need also to set up the_ RATE DEPENDENT tag. This is not so clearly stated in the manual, at least in my opinion, so I propose a little lexical modification to stress that both tags are required even if one doesn’t have rate dependency. So the question is … how do I press this request ? I could do it myself but I guess some form of control over sources stand. Who’s in charge of this? I guess it’s you.

Thank you, (and by the way Calculix is so amazing, I love it !)

Andrea

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**Author:** ![Calc\_em](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Calc\_em](https://calculix.discourse.group/u/Calc_em)\
**Post date:** [July 28, 2025, 8:26am UTC](https://calculix.discourse.group/t/calculix-source-code-repository/84/6 "2025-07-28T08:26:26Z")

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> [@andnee](#):
>
> So the question is … how do I press this request ? I could do it myself but I guess some form of control over sources stand. Who’s in charge of this? I guess it’s you.

Guido is rarely active here but you can create an issue on GitHub: [GitHub · Where software is built](https://github.com/Dhondtguido/CalculiX/issues)
