# Questions about integrated development solvers
**URL:** https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028
**Category:** General Questions
**Created:** [August 9, 2023, 7:01am UTC](https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028 "2023-08-09T07:01:50Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@AmberZhou](https://prepomax.discourse.group/u/AmberZhou)
#### Post date: [August 9, 2023, 7:01am UTC](https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028/1 "2023-08-09T07:01:50Z")
How many solvers can propomax integrate?
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### Author:  [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)
#### Post date: [August 9, 2023, 7:06am UTC](https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028/2 "2023-08-09T07:06:02Z")
For now, it’s just CalculiX. There have been discussions about integrating other solvers for specific types of analyses or for general usage. However, it would not only mean a lot of work but could also make the interface less user-friendly. Now it focuses on CalculiX features and it could become too messy if there were other big solvers like code\_aster, for instance. Thus, it would make more sense to integrated smaller solvers for specific purposes (e.g. fatigue). Still, the primary goal is to add support for more CalculiX features.
If you want more versatile pre- and postprocessor for open-source FEA solvers, check FreeCAD’s FEM workbench (it supports CalculiX, Elmer and a few less common solvers) or Salome\_Meca.
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### Author:  [@synt](https://prepomax.discourse.group/u/synt)
#### Post date: [August 10, 2023, 10:41pm UTC](https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028/3 "2023-08-10T22:41:57Z")
it seems to be right, an exporter to specific FE solver is enough and such as guidance in coding is available to easy to follow.
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### Author:  [@vitluc](https://prepomax.discourse.group/u/vitluc)
#### Post date: [August 11, 2023, 9:35am UTC](https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028/4 "2023-08-11T09:35:02Z")
It seems that TOCHNOH can be easily substitued to calculix, have a look to
[ ](https://www.youtube.com/watch?v=Cme911Wgp-E)
the video is
# Tochnog Professional - PrePoMax - 2 - Run
Best
Vittorio
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### Author:  [@synt](https://prepomax.discourse.group/u/synt)
#### Post date: [August 12, 2023, 7:12am UTC](https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028/5 "2023-08-12T07:12:23Z")
it seems Tochnog use underlying methods, this mean working on input and output of CalculiX format (inp & frd) which already supported by PrePoMax
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### Author:  [@Matej](https://prepomax.discourse.group/u/Matej)
#### Post date: [August 15, 2023, 12:45pm UTC](https://prepomax.discourse.group/t/questions-about-integrated-development-solvers/1028/6 "2023-08-15T12:45:00Z")
Years ago, I was actually helping the Tochnog developer to integrate an output file format compatible with the .frd Calculix file. So I would believe the results can be easily post-processed in PrePoMax now.