# Importing nodal forces in Calculix

**URL:** <https://prepomax.discourse.group/t/importing-nodal-forces-in-calculix/3081>\
**Category:** General Questions\
**Created:** [November 11, 2025, 9:09am UTC](https://prepomax.discourse.group/t/importing-nodal-forces-in-calculix/3081 "2025-11-11T09:09:47Z")\
**Posts on this page:** 1\
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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:** [November 11, 2025, 9:27am UTC](https://prepomax.discourse.group/t/importing-nodal-forces-in-calculix/3081/2 "2025-11-11T09:27:34Z")

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You can do this using the new Distribution feature in PrePoMax 2.4.0. It takes a text (ASCII) file in the following format (for vector used to define surface traction load) as an input:

X Y Z V1 V2 V3

where X,Y,Z are the coordinates of a point and V1,V2,V3 are the components of the (surface traction load) vector in force per unit area.

> [@A new developer/preview PrePoMax version v2.3.5 has been released](https://prepomax.discourse.group/t/a-new-developer-preview-prepomax-version-v2-3-5-has-been-released/2776/2):
>
> The distribution from file expects an ASCII (text) file that contains the data in the following format for scalar distributions: #X Y Z V1 0 0 0 1 10 0 0 2 10 10 0 3 0 10 0 4 The # denotes a comment line - a line that is skipped by the data reader X, Y and Z are spatial coordinates of the point V1 is the value of the distribution For a vector distribution three values V1, V2 and V3 are expected. Vector distribution can be ised to specify the distribution of the Surface traction load in …

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