diff --git a/models/arrows.blend b/models/arrows.blend
index 1612a9b..f08c2df 100644
Binary files a/models/arrows.blend and b/models/arrows.blend differ
diff --git a/models/nc_extended_rotating_corner.obj b/models/nc_extended_rotating_corner.obj
index 6c0ac3b..d15759e 100644
--- a/models/nc_extended_rotating_corner.obj
+++ b/models/nc_extended_rotating_corner.obj
@@ -1,6 +1,5 @@
 # Blender v3.6.4 OBJ File: 'arrows.blend'
 # www.blender.org
-mtllib nc_extended_rotating_corner.mtl
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 v 2.700978 0.117188 -1.804735
 v 0.633739 -0.117188 -3.186019
@@ -23,14 +22,14 @@ v -0.700391 0.117188 -3.489450
 v -0.700391 -0.117188 -3.489450
 v 3.186019 0.117188 -0.633739
 v 3.792881 0.117188 -0.754451
-v 0.537109 0.117188 -3.186019
-v 0.537109 0.117188 -3.792881
-v 0.537109 -0.117188 -3.186019
+v -3.858908 0.117187 -0.252926
+v -3.076043 -0.117187 1.044176
+v -2.913435 0.117187 -1.436748
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+v 0.537109 0.117188 -3.792881
 v -3.468375 0.117187 -1.710414
-v -2.913435 0.117187 -1.436748
-v -3.076043 -0.117187 1.044176
-v -3.858908 0.117187 -0.252926
+v 0.537109 -0.117188 -3.186019
+v 0.537109 0.117188 -3.186019
 v -3.661956 -0.117187 1.243067
 v -3.241483 -0.117187 -0.212458
 v -3.241483 0.117187 -0.212458
@@ -49,14 +48,14 @@ v -2.671757 0.117187 2.351282
 v -2.671757 -0.117187 2.351282
 v -2.141844 0.117187 -2.442304
 v -2.549815 0.117187 -2.907506
-v -3.027728 0.117187 1.127860
-v -3.553285 0.117187 1.431291
-v -3.027728 -0.117187 1.127860
 v -3.553285 -0.117187 1.431291
-v 0.252926 0.117187 3.858908
-v 0.212458 0.117187 3.241483
-v 2.442305 -0.117187 2.141843
+v -3.553286 0.117187 1.431291
+v -3.027728 -0.117187 1.127860
+v -3.027728 0.117187 1.127860
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+v 0.252926 0.117187 3.858908
 v 2.907506 -0.117187 2.549813
 v 1.436748 -0.117187 2.913435
 v 1.436748 0.117187 2.913435
@@ -75,10 +74,10 @@ v 3.372148 0.117187 1.138168
 v 3.372148 -0.117187 1.138168
 v -1.044175 0.117187 3.076044
 v -1.243066 0.117187 3.661957
-v 2.490619 0.117187 2.058160
+v 3.016177 -0.117187 2.361590
 v 3.016177 0.117187 2.361590
 v 2.490619 -0.117187 2.058160
-v 3.016177 -0.117187 2.361590
+v 2.490619 0.117187 2.058160
 vt 0.262500 0.500000
 vt 0.262500 0.262500
 vt 0.262500 0.262500
@@ -86,8 +85,10 @@ vt 0.262500 0.500000
 vt 0.975000 0.796875
 vt 0.500000 0.975000
 vt 0.025000 0.796875
+vt 0.241340 0.796875
+vt 0.735606 0.796875
 vt 0.975000 0.796875
-vt 0.025000 0.796875
+vt 0.728935 0.796875
 vt 0.262500 0.737500
 vt 0.262500 0.737500
 vt 0.737500 0.500000
@@ -105,15 +106,19 @@ vt 0.737500 0.025000
 vt 0.737500 0.796875
 vt 0.737500 0.796875
 vt 0.737500 0.262500
+vt 0.250375 0.796875
+vt 0.025000 0.796875
+vt 0.975000 0.796875
+vt 0.500000 0.975000
+vt 0.025000 0.796875
+vt 0.241340 0.796875
+vt 0.735606 0.796875
 vt 0.262500 0.500000
 vt 0.262500 0.262500
 vt 0.262500 0.262500
 vt 0.262500 0.500000
 vt 0.975000 0.796875
-vt 0.500000 0.975000
-vt 0.025000 0.796875
-vt 0.975000 0.796875
-vt 0.025000 0.796875
+vt 0.728935 0.796875
 vt 0.262500 0.737500
 vt 0.262500 0.737500
 vt 0.737500 0.500000
@@ -131,15 +136,19 @@ vt 0.737500 0.025000
 vt 0.737500 0.796875
 vt 0.737500 0.796875
 vt 0.737500 0.262500
+vt 0.250375 0.796875
+vt 0.025000 0.796875
+vt 0.975000 0.796875
+vt 0.500000 0.975000
+vt 0.025000 0.796875
+vt 0.241340 0.796875
+vt 0.735606 0.796875
 vt 0.262500 0.500000
 vt 0.262500 0.262500
 vt 0.262500 0.262500
 vt 0.262500 0.500000
 vt 0.975000 0.796875
-vt 0.500000 0.975000
-vt 0.025000 0.796875
-vt 0.975000 0.796875
-vt 0.025000 0.796875
+vt 0.728935 0.796875
 vt 0.262500 0.737500
 vt 0.262500 0.737500
 vt 0.737500 0.500000
@@ -157,9 +166,11 @@ vt 0.737500 0.025000
 vt 0.737500 0.796875
 vt 0.737500 0.796875
 vt 0.737500 0.262500
+vt 0.250375 0.796875
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 vn -0.7071 0.0000 0.7071
 vn 0.0000 1.0000 0.0000
-vn 1.0000 0.0000 0.0000
+vn 1.0000 -0.0000 0.0000
 vn -0.3827 0.0000 0.9239
 vn 0.3827 0.0000 -0.9239
 vn -0.5000 0.0000 -0.8660
@@ -167,11 +178,10 @@ vn 0.0000 -1.0000 0.0000
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 vn 0.0000 0.0000 1.0000
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-vn 0.0000 0.0000 -1.0000
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 vn 0.7071 0.0000 -0.7071
 vn -0.5000 0.0000 0.8660
-vn -1.0000 0.0000 0.0000
 vn 0.9659 0.0000 0.2588
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 vn -0.9914 0.0000 0.1305
@@ -181,7 +191,6 @@ vn 0.7518 0.0000 -0.6593
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 vn 0.6088 0.0000 0.7934
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 vn 0.2588 0.0000 0.9659
-vn 0.5000 0.0000 -0.8660
-usemtl None
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diff --git a/models/nc_extended_rotating_edge.obj b/models/nc_extended_rotating_edge.obj
index 97627dc..0c8bcca 100644
--- a/models/nc_extended_rotating_edge.obj
+++ b/models/nc_extended_rotating_edge.obj
@@ -1,82 +1,81 @@
 # Blender v3.6.4 OBJ File: 'arrows.blend'
 # www.blender.org
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diff --git a/models/nc_extended_rotating_face.obj b/models/nc_extended_rotating_face.obj
index 4e7f60e..3c35da7 100644
--- a/models/nc_extended_rotating_face.obj
+++ b/models/nc_extended_rotating_face.obj
@@ -1,6 +1,5 @@
 # Blender v3.6.4 OBJ File: 'arrows.blend'
 # www.blender.org
-mtllib nc_extended_rotating_face.mtl
 v 2.455435 -0.117188 1.640667
 v 2.923136 -0.117188 1.953175
 v 2.923136 0.117188 1.953175
@@ -32,9 +31,9 @@ v -0.636719 -0.117188 -3.172227
 v 2.896381 0.117188 -0.576126
 v 3.448073 0.117188 -0.685865
 v 0.488281 0.117188 -2.896381
-v 0.488281 0.117188 -3.448073
 v 0.488281 -0.117188 -2.896381
 v 0.488281 -0.117188 -3.448073
+v 0.488281 0.117188 -3.448073
 v -2.455434 -0.117188 -1.640668
 v -2.923136 -0.117188 -1.953176
 v -2.923136 0.117188 -1.953176
@@ -83,8 +82,10 @@ vt 0.262500 0.595000
 vt 0.975000 0.796875
 vt 0.500000 0.975000
 vt 0.025000 0.796875
+vt 0.270466 0.796875
+vt 0.723438 0.796875
 vt 0.975000 0.796875
-vt 0.025000 0.796875
+vt 0.729851 0.796875
 vt 0.262500 0.737500
 vt 0.262500 0.737500
 vt 0.737500 0.595000
@@ -103,6 +104,8 @@ vt 0.262500 0.796875
 vt 0.737500 0.796875
 vt 0.737500 0.796875
 vt 0.737500 0.452500
+vt 0.274334 0.796875
+vt 0.025000 0.796875
 vt 0.737500 0.025000
 vt 0.737500 0.167500
 vt 0.737500 0.167500
@@ -117,8 +120,10 @@ vt 0.262500 0.595000
 vt 0.975000 0.796875
 vt 0.500000 0.975000
 vt 0.025000 0.796875
+vt 0.270466 0.796875
+vt 0.723438 0.796875
 vt 0.975000 0.796875
-vt 0.025000 0.796875
+vt 0.729851 0.796875
 vt 0.262500 0.737500
 vt 0.262500 0.737500
 vt 0.737500 0.595000
@@ -137,10 +142,12 @@ vt 0.262500 0.796875
 vt 0.737500 0.796875
 vt 0.737500 0.796875
 vt 0.737500 0.452500
+vt 0.274334 0.796875
+vt 0.025000 0.796875
 vn 0.9239 0.0000 0.3827
 vn 0.0000 1.0000 0.0000
 vn -0.7071 0.0000 0.7071
-vn 1.0000 0.0000 -0.0000
+vn 1.0000 0.0000 0.0000
 vn -0.3827 0.0000 0.9239
 vn 0.3827 0.0000 -0.9239
 vn -0.5000 0.0000 -0.8660
@@ -157,67 +164,66 @@ vn -1.0000 0.0000 0.0000
 vn 0.5000 0.0000 0.8660
 vn 0.5000 0.0000 -0.8660
 vn 0.5556 0.0000 -0.8315
-usemtl None
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