diff --git a/lower_case.scad b/lower_case.scad
index 5d47f20..0a6f248 100644
--- a/lower_case.scad
+++ b/lower_case.scad
@@ -7,30 +7,30 @@ $fn = 64;
 color("SaddleBrown") difference() {
   // case
   hull() {
-    translate([-case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
-    translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
+    translate([-case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
+    translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
+    translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
+    translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
   }
 
   // pcb
   translate([0, 0, case_bottom_thickness]) hull() {
-    cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
-    translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius);
+    cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
+    translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
+    translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
+    translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
   }
 
   // plate_mounting
-  translate([20, pcb_depth - pcb_radius, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(hole=false);
-  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(hole=false);
-  translate([20, -pcb_radius, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(north_facing=false, hole=false);
-  translate([pcb_width-2*pcb_radius - 20, -pcb_radius, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(north_facing=false, hole=false);
+  translate([20, pcb_depth - pcb_radius+1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(hole=false);
+  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius+1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(hole=false);
+  translate([20, -pcb_radius-1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(north_facing=false, hole=false);
+  translate([pcb_width-2*pcb_radius - 20, -pcb_radius-1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(north_facing=false, hole=false);
   // screw holes
-  translate([20, pcb_depth - pcb_radius + 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
-  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius + 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
-  translate([20, -pcb_radius - 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
-  translate([pcb_width-2*pcb_radius - 20, -pcb_radius - 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
+  translate([20, pcb_depth - pcb_radius+1 + 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
+  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius+1 + 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
+  translate([20, -pcb_radius-1 - 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
+  translate([pcb_width-2*pcb_radius - 20, -pcb_radius-1 - 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
   
   // USB-C daughter board
   translate([pcb_width/2-pcb_radius, pcb_depth-pcb_radius+1-pololu_depth/2, case_bottom_thickness - pcb_thickness/2]) {
diff --git a/plate.dxf b/plate.dxf
index 5b61227..73bf838 100644
--- a/plate.dxf
+++ b/plate.dxf
@@ -13,193 +13,193 @@ LINE
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diff --git a/plate.scad b/plate.scad
index 5ccace1..9fadf7d 100644
--- a/plate.scad
+++ b/plate.scad
@@ -8,16 +8,16 @@ $fn = 64;
 color("Gold") difference() {
   union() {
     hull() {
-      cylinder(h=plate_thickness, r=pcb_radius);
-      translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=plate_thickness, r=pcb_radius);
-      translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius);
-      translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius);
+      cylinder(h=plate_thickness, r=pcb_radius+1);
+      translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=plate_thickness, r=pcb_radius+1);
+      translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius+1);
+      translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=plate_thickness, r=pcb_radius+1);
     }
 
-    translate([20, pcb_depth - pcb_radius, 0]) lug();
-    translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius, 0]) lug();
-    translate([20, -pcb_radius, 0]) lug(north_facing=false);
-    translate([pcb_width-2*pcb_radius - 20, -pcb_radius, 0]) lug(north_facing=false);
+    translate([20, pcb_depth - pcb_radius+1, 0]) lug();
+    translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius+1, 0]) lug();
+    translate([20, -pcb_radius-1, 0]) lug(north_facing=false);
+    translate([pcb_width-2*pcb_radius - 20, -pcb_radius-1, 0]) lug(north_facing=false);
   }
 
   translate([12.7-pcb_radius, 12.7-pcb_radius, 0]) {
diff --git a/upper_case.scad b/upper_case.scad
index be13da7..92ba753 100644
--- a/upper_case.scad
+++ b/upper_case.scad
@@ -7,18 +7,18 @@ $fn = 64;
 color("SaddleBrown") difference() {
   // case
   hull() {
-    translate([-case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
-    translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius);
+    translate([-case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius+1);
+    translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius+1);
+    translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius+1);
+    translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r=pcb_radius+1);
   }
 
   // pcb
   hull() {
-    cylinder(h=upper_case_height+0.1, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius);
-    translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius);
-    translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius);
+    cylinder(h=upper_case_height+0.1, r=pcb_radius+1);
+    translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius+1);
+    translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius+1);
+    translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=upper_case_height+0.1, r=pcb_radius+1);
   }
   
   // threaded inserts
@@ -27,8 +27,9 @@ color("SaddleBrown") difference() {
   translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=3, d=3);
   translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=3, d=3);
   
-  translate([20, pcb_depth - pcb_radius, 0]) lug(hole=false);
-  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius, 0]) lug(hole=false);
-  translate([20, -pcb_radius, 0]) lug(north_facing=false, hole=false);
-  translate([pcb_width-2*pcb_radius - 20, -pcb_radius, 0]) lug(north_facing=false, hole=false);
+  
+  translate([20, pcb_depth - pcb_radius+1+case_thickness/2, 0]) cylinder(h=2, d=4);
+  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius+1+case_thickness/2, 0]) cylinder(h=2, d=4);
+  translate([20, -pcb_radius-1-case_thickness/2, 0]) cylinder(h=2, d=4);
+  translate([pcb_width-2*pcb_radius - 20, -pcb_radius-1-case_thickness/2, 0]) cylinder(h=2, d=4);
 }
diff --git a/util.scad b/util.scad
index cb91b55..1219e23 100644
--- a/util.scad
+++ b/util.scad
@@ -2,8 +2,8 @@
 
 $fn=64;
 
-pcb_width = 139.7+1;
-pcb_depth = 82.55+1;
+pcb_width = 139.7;
+pcb_depth = 82.55;
 pcb_radius = 3.175;
 pcb_thickness = 1.6;
 
@@ -19,7 +19,7 @@ standoff_height = 3;
 mx = 19.05;
 
 mounting_holes = [
-  [36.5125, 21.0188],
+  [36.5125, 23.0188],
   [30.9563, 57.9438],
   [116.6813, 14.2875],
   [98.425, 69.0563]