diff --git a/tests/bugs/modalg_6/bug26954_1 b/tests/bugs/modalg_6/bug26954_1
new file mode 100644
index 0000000000..44a312e55b
--- /dev/null
+++ b/tests/bugs/modalg_6/bug26954_1
@@ -0,0 +1,22 @@
+puts "============"
+puts "OCC26953"
+puts "============"
+puts ""
+###############################
+## First test case for Set-44
+###############################
+
+restore [locate_data_file bug26954_B44_1.brep] b1
+restore [locate_data_file bug26954_Tank44.brep] b2
+
+bfuzzyvalue 1.e-2
+bclearobjects
+bcleartools
+baddobjects b1
+baddtools b2
+bfillds
+bbop result 0
+
+set square 14.0567
+
+set 2dviewer 1
diff --git a/tests/bugs/modalg_6/bug26954_2 b/tests/bugs/modalg_6/bug26954_2
new file mode 100644
index 0000000000..86c7660e1a
--- /dev/null
+++ b/tests/bugs/modalg_6/bug26954_2
@@ -0,0 +1,23 @@
+puts "============"
+puts "OCC26953"
+puts "============"
+puts ""
+###############################
+## First test case for Set-44
+###############################
+
+restore [locate_data_file bug26954_B44_1.brep] b1
+restore [locate_data_file bug26954_Tank44.brep] b2
+
+ttranslate b1 0.0564592858713787 -0.764914886816214 -0.641652214962149
+
+bclearobjects
+bcleartools
+baddobjects b1
+baddtools b2
+bfillds
+bbop result 0
+
+set square 14.2451
+
+set 2dviewer 1
diff --git a/tests/bugs/modalg_6/bug26954_3 b/tests/bugs/modalg_6/bug26954_3
new file mode 100644
index 0000000000..9fd8b3b74e
--- /dev/null
+++ b/tests/bugs/modalg_6/bug26954_3
@@ -0,0 +1,22 @@
+puts "============"
+puts "OCC26953"
+puts "============"
+puts ""
+###############################
+## Second test case for Set-44
+###############################
+
+restore [locate_data_file bug26954_B44_2.brep] b1
+restore [locate_data_file bug26954_Tank44.brep] b2
+
+bfuzzyvalue 0.12
+bclearobjects
+bcleartools
+baddobjects b1
+baddtools b2
+bfillds
+bbop result 0
+
+set square 42.0108
+
+set 2dviewer 1
diff --git a/tests/bugs/modalg_6/bug26954_4 b/tests/bugs/modalg_6/bug26954_4
new file mode 100644
index 0000000000..7977571307
--- /dev/null
+++ b/tests/bugs/modalg_6/bug26954_4
@@ -0,0 +1,23 @@
+puts "============"
+puts "OCC26953"
+puts "============"
+puts ""
+###############################
+## Second test case for Set-44
+###############################
+
+restore [locate_data_file bug26954_B44_2.brep] b1
+restore [locate_data_file bug26954_Tank44.brep] b2
+
+ttranslate b1 0.0564592858713787 -0.764914886816214 -0.641652214962149
+
+bclearobjects
+bcleartools
+baddobjects b1
+baddtools b2
+bfillds
+bbop result 0
+
+set square 40.7799
+
+set 2dviewer 1
diff --git a/tests/bugs/modalg_6/bug26954_5 b/tests/bugs/modalg_6/bug26954_5
new file mode 100644
index 0000000000..6edadc7270
--- /dev/null
+++ b/tests/bugs/modalg_6/bug26954_5
@@ -0,0 +1,23 @@
+puts "============"
+puts "OCC26953"
+puts "============"
+puts ""
+###############################
+## Third test case for Set-44
+###############################
+
+restore [locate_data_file bug26954_B44_3.brep] b1
+restore [locate_data_file bug26954_Tank44.brep] b2
+
+ttranslate b1 0.0564592858713787 -0.764914886816214 -0.641652214962149
+
+bclearobjects
+bcleartools
+baddobjects b1
+baddtools b2
+bfillds
+bbop result 0
+
+set square 45.069
+
+set 2dviewer 1