diff --git a/.gitignore b/.gitignore
index a3012a8..5dfa137 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
 *swp
 *step
 *3mf
-
+*otf
+*ttf
+*TTF
+__pycache__
diff --git a/belt_rivets.py b/belt_rivets.py
index 086e05d..5b3a9ff 100644
--- a/belt_rivets.py
+++ b/belt_rivets.py
@@ -17,69 +17,79 @@ Workplane.addSvgPath = addSvgPath
     #"/home/deck/cad_files/svgs/wk_edited.svg"
 #)
 
-inner_diameter = 5
-outer_diameter = 7
+inner_radius = 5
+outer_radius = 7
 thickness = 3.5
 
-rivet_inner_diameter = 2
-rivet_outer_diameter = 3.5
+rivet_inner_radius = 2
+rivet_outer_radius = 3.5
 rivet_thickness = 3
 
 belt_width = 39
 loop_thickness = 1.83
 loop_side_thickness = 5
-loop_height = 4.5 + loop_thickness
+loop_height = 10.5 + loop_thickness
 loop_width = 25
 loop_length = belt_width + loop_side_thickness
 
 slide_width_bottom = loop_side_thickness - 3
 slide_width_top = loop_side_thickness - 4
 
-logo = Workplane().circle(outer_diameter).extrude(thickness)
-logo = logo.faces(">Z[0]").circle(inner_diameter+0.9).extrude(thickness, combine="cut")
-logo = logo.faces(">Z[0]").circle(inner_diameter).extrude(thickness)
-logo = logo.faces(">Z[1]").center(0,0).cylinder(thickness+2, inner_diameter-1, combine="cut")
-logo = logo.workplane(offset=1.0).circle(outer_diameter+4).extrude(1).workplane(offset=0.5).text("WK", 10, 0.8, combine="cut")
+logo = Workplane().circle(outer_radius).extrude(thickness)
+logo = logo.faces(">Z[0]").circle(inner_radius+0.9).extrude(thickness, combine="cut")
+logo = logo.faces(">Z[0]").circle(inner_radius).extrude(thickness)
+logo = logo.faces(">Z[1]").center(0,0).cylinder(thickness+2, inner_radius-1, combine="cut")
+logo = logo.workplane(offset=1.0).circle(outer_radius+4).extrude(1).workplane(offset=0.5).text("WK", 10, 0.8, combine="cut")
 
 #wk = Workplane("XY").center(0, 0).addSvgPath(wk_paths[0]).extrude(-2.0)
 
 #logo = logo.union(wk, clean=False)
 
-logo_outer = Workplane().circle(inner_diameter+1).extrude(thickness)
-logo_outer = logo_outer.faces(">Z[0]").circle(inner_diameter).extrude(thickness, combine="cut")
-logo_outer = logo_outer.workplane(offset=1.0).circle(outer_diameter+4).extrude(1)
+logo_outer = Workplane().circle(inner_radius+1).extrude(thickness)
+logo_outer = logo_outer.faces(">Z[0]").circle(inner_radius).extrude(thickness, combine="cut")
+logo_outer = logo_outer.workplane(offset=1.0).circle(outer_radius+4).extrude(1)
 cq.exporters.export(logo, "/home/deck/model_files/belt_hole_inner.step")
 cq.exporters.export(logo_outer, "/home/deck/model_files/belt_hole_outer.step")
 
-rivet = Workplane().circle(rivet_outer_diameter).extrude(rivet_thickness)
-rivet = rivet.faces(">Z[0]").circle(rivet_inner_diameter+1.05).extrude(rivet_thickness, combine="cut")
-rivet = rivet.faces(">Z[0]").circle(rivet_inner_diameter-0.15).extrude(rivet_thickness)
-rivet = rivet.faces(">Z[1]").center(0,0).cylinder(rivet_thickness+2, rivet_inner_diameter-1, combine="cut")
-rivet = rivet.workplane(offset=1.0).circle(rivet_outer_diameter+1).extrude(1)
+rivet = Workplane().circle(rivet_outer_radius).extrude(rivet_thickness)
+rivet = rivet.faces(">Z[0]").circle(rivet_inner_radius+1.10).extrude(rivet_thickness, combine="cut")
+rivet = rivet.faces(">Z[0]").circle(rivet_inner_radius-0.15).extrude(rivet_thickness)
+rivet = rivet.faces(">Z[1]").center(0,0).cylinder(rivet_thickness+2, rivet_inner_radius-1, combine="cut")
+rivet = rivet.workplane(offset=1.0).circle(rivet_outer_radius+1).extrude(1)
 
-rivet_outer = Workplane().circle(rivet_inner_diameter+1).extrude(rivet_thickness)
-rivet_outer = rivet_outer.faces(">Z[0]").circle(rivet_inner_diameter).extrude(rivet_thickness, combine="cut")
-rivet_outer = rivet_outer.workplane(offset=1.0).circle(rivet_outer_diameter+1).extrude(1)
+rivet_outer = Workplane().circle(rivet_inner_radius+1).extrude(rivet_thickness)
+rivet_outer = rivet_outer.faces(">Z[0]").circle(rivet_inner_radius).extrude(rivet_thickness, combine="cut")
+rivet_outer = rivet_outer.workplane(offset=1.0).circle(rivet_outer_radius+1).extrude(1)
 
 loop = Workplane().box(loop_length, loop_width, loop_height)
 loop_cut = Workplane().box(loop_length-loop_thickness-loop_side_thickness, loop_width, loop_height-loop_thickness)
 loop = loop.cut(loop_cut)
 
-loop_top = loop.faces(">Z[0]").workplane(offset=-1).split(keepTop=True)
+loop_top = loop.faces(">Z[0]").workplane(offset=-1.8).split(keepTop=True)
 loop_bottom = loop.faces(">Z[0]").workplane(offset=-1).split(keepBottom=True)
 
 slide_bottom_cut_left = Workplane().move(-((loop_length/2)-loop_thickness), 0).box(slide_width_bottom, loop_width, 2)
 slide_bottom_cut_right = Workplane().move(((loop_length/2)-loop_thickness), 0).box(slide_width_bottom, loop_width, 2)
+slide_top_cut_left = Workplane().workplane(offset=-2.8).move(-((loop_length/2)-loop_thickness), 0).box(slide_width_top, loop_width, loop_height/2)
+slide_top_cut_right = Workplane().workplane(offset=-2.8).move(((loop_length/2)-loop_thickness), 0).box(slide_width_top, loop_width, loop_height/2)
 
-slide_top_cut_left = Workplane().workplane(offset=-2).move(-((loop_length/2)-loop_thickness), 0).box(slide_width_top, loop_width, loop_height/2)
-slide_top_cut_right = Workplane().workplane(offset=-2).move(((loop_length/2)-loop_thickness), 0).box(slide_width_top, loop_width, loop_height/2)
+slide_bottom_union_left = Workplane().workplane(offset=1).move(-((loop_length/2)-loop_thickness), 0).box(slide_width_bottom-0.3, loop_width, 1.8)
+slide_bottom_union_right = Workplane().workplane(offset=1).move(((loop_length/2)-loop_thickness), 0).box(slide_width_bottom-0.3, loop_width, 1.8)
+slide_top_union_left = Workplane().workplane(offset=-1.8).move(-((loop_length/2)-loop_thickness), 0).box(slide_width_top, loop_width, loop_height/2)
+slide_top_union_right = Workplane().workplane(offset=-1.8).move(((loop_length/2)-loop_thickness), 0).box(slide_width_top, loop_width, loop_height/2)
 
 loop_bottom = loop_bottom.cut(slide_bottom_cut_left)
 loop_bottom = loop_bottom.cut(slide_bottom_cut_right)
-
 loop_bottom = loop_bottom.cut(slide_top_cut_left)
 loop_bottom = loop_bottom.cut(slide_top_cut_right)
 
+loop_top = loop_top.union(slide_bottom_union_left)
+loop_top = loop_top.union(slide_bottom_union_right)
+loop_top = loop_top.union(slide_top_union_left)
+loop_top = loop_top.union(slide_top_union_right)
+
+loop_top = loop_top.faces(">Z[0]").rect(loop_width, loop_height, forConstruction=True).vertices().hole((rivet_outer_radius*2)+1)
+
 cq.exporters.export(rivet, "/home/deck/model_files/rivet_inner.step")
 cq.exporters.export(rivet_outer, "/home/deck/model_files/rivet_outer.step")
 cq.exporters.export(loop_bottom, "/home/deck/model_files/loop_bottom.step")
@@ -88,7 +98,7 @@ cq.exporters.export(loop_top, "/home/deck/model_files/loop_top.step")
 try:
     #show_object(rivet_outer)
     #show_object(rivet)
-    show_object(loop_bottom)
-    #show_object(loop_top)
+    #show_object(loop_bottom)
+    show_object(loop_top)
 except NameError:
     pass
diff --git a/svgs/WK.png b/svgs/WK.png
new file mode 100644
index 0000000..2841fb4
Binary files /dev/null and b/svgs/WK.png differ