From b4974a6c3295169542a0dac16ead1c44b4b358df Mon Sep 17 00:00:00 2001
From: FEA-eng <59876896+FEA-eng@users.noreply.github.com>
Date: Tue, 19 Aug 2025 11:38:40 +0200
Subject: [PATCH] FEM: Update write_step_output.py

---
 src/Mod/Fem/femsolver/calculix/write_step_output.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Mod/Fem/femsolver/calculix/write_step_output.py b/src/Mod/Fem/femsolver/calculix/write_step_output.py
index 9bc00687fa..de83651044 100644
--- a/src/Mod/Fem/femsolver/calculix/write_step_output.py
+++ b/src/Mod/Fem/femsolver/calculix/write_step_output.py
@@ -86,10 +86,14 @@ def write_step_output(f, ccxwriter):
                     f.write("*NODE PRINT, NSET={}, TOTALS=ONLY\n".format(femobj["Object"].Name))
                     f.write("RF\n")
         if ccxwriter.member.cons_rigidbody:
-            # reaction forces/moments for Constraint rigid body
-            f.write("** reaction forces/moments for Constraint rigid body\n")
+            # displacements and reaction forces/moments for Constraint rigid body
+            f.write("** displacements and reaction forces/moments for Constraint rigid body\n")
             for femobj in ccxwriter.member.cons_rigidbody:
                 # femobj --> dict, FreeCAD document object is femobj["Object"]
+                f.write("*NODE PRINT, NSET={}_RefNode\n".format(femobj["Object"].Name))
+                f.write("U\n")
+                f.write("*NODE PRINT, NSET={}_RotNode\n".format(femobj["Object"].Name))
+                f.write("U\n")
                 if (
                     femobj["Object"].TranslationalModeX != "Free"
                     or femobj["Object"].TranslationalModeY != "Free"