Sectioned off layers of modeling glue and finished sanding off all excess adhesive I could find.

Models/blenderCube2.obj

@@ -0,0 +1,24 @@
+# Blender v2.80 (sub 74) OBJ File: ''
+# www.blender.org
+o Cube
+v 1.000000 1.000000 -1.000000
+v 1.000000 -1.000000 -1.000000
+v 1.000000 1.000000 1.000000
+v 1.000000 -1.000000 1.000000
+v -1.000000 1.000000 -1.000000
+v -1.000000 -1.000000 -1.000000
+v -1.000000 1.000000 1.000000
+v -1.000000 -1.000000 1.000000
+s off
+f 5 3 1
+f 3 8 4
+f 7 6 8
+f 2 8 6
+f 1 4 2
+f 5 2 6
+f 5 7 3
+f 3 7 8
+f 7 5 6
+f 2 4 8
+f 1 3 4
+f 5 1 2

Models/cube.obj

@@ -0,0 +1,35 @@
+#
+#
+#
+
+#
+# cube Mesh
+#
+g cube Mesh
+
+v 0.022541 0.000000 0.000000
+v 1.022541 1.000000 0.000000
+v 1.022541 0.000000 0.000000
+v 0.022541 1.000000 0.000000
+v 0.022541 1.000000 1.000000
+v 0.022541 0.000000 1.000000
+v 1.022541 1.000000 1.000000
+v 1.022541 0.000000 1.000000
+vn 0.000000 0.000000 -1.000000
+vn -1.000000 0.000000 0.000000
+vn 0.000000 1.000000 0.000000
+vn 1.000000 0.000000 0.000000
+vn 0.000000 -1.000000 0.000000
+vn 0.000000 0.000000 1.000000
+f 1//1 2//1 3//1
+f 1//1 4//1 2//1
+f 1//2 5//2 4//2
+f 1//2 6//2 5//2
+f 4//3 7//3 2//3
+f 4//3 5//3 7//3
+f 3//4 2//4 7//4
+f 3//4 7//4 8//4
+f 1//5 3//5 8//5
+f 1//5 8//5 6//5
+f 6//6 8//6 7//6
+f 6//6 7//6 5//6

Models/cubeNoNormals.obj

@@ -0,0 +1,32 @@
+#
+#
+#
+
+mtllib cube.mtl
+
+
+#
+# cube Mesh
+#
+g cube Mesh
+
+v 0.022541 0.000000 0.000000
+v 1.022541 1.000000 0.000000
+v 1.022541 0.000000 0.000000
+v 0.022541 1.000000 0.000000
+v 0.022541 1.000000 1.000000
+v 0.022541 0.000000 1.000000
+v 1.022541 1.000000 1.000000
+v 1.022541 0.000000 1.000000
+f 1 2 3
+f 1 4 2
+f 1 5 4
+f 1 6 5
+f 4 7 2
+f 4 5 7
+f 3 2 7
+f 3 7 8
+f 1 3 8
+f 1 8 6
+f 6 8 7
+f 6 7 5