diff --git a/lower_case.scad b/lower_case.scad
index 89b80ca..64b8d3d 100644
--- a/lower_case.scad
+++ b/lower_case.scad
@@ -3,14 +3,31 @@
 include <util.scad>
 
 $fn = 64;
+with_weight = false;
 
 color("SaddleBrown") difference() {
   // case
-  hull() {
-    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);
+  union() {
+    hull() {
+      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);
+    }
+    
+    translate([0,0,case_thickness+standoff_height+pcb_thickness+5-upper_case_height]) hull() {
+      translate([-case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+0.5, r2=pcb_radius+2);
+      translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+0.5, r2=pcb_radius+2);
+      translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+0.5, r2=pcb_radius+2);
+      translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+0.5, r2=pcb_radius+2);
+    }
+    
+    hull() {
+      translate([-case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+2, r2=pcb_radius+0.5);
+      translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+2, r2=pcb_radius+0.5);
+      translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+2, r2=pcb_radius+0.5);
+      translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height, r1=pcb_radius+2, r2=pcb_radius+0.5);
+    }
   }
 
   // pcb
@@ -20,10 +37,6 @@ color("SaddleBrown") difference() {
     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);
   }
-  
-  // hole for reset button
-  translate([reset_x - pcb_radius, reset_y - pcb_radius, 0]) cylinder(h=case_thickness, r=1);
-  translate([reset_x - pcb_radius-1.4, reset_y - pcb_radius-1.5, 1.5]) mirror([1,0,0]) rotate([0,0,90]) linear_extrude(0.2) text(text="RESET ►", size=3, font="Liberation Sans:style=Bold", halign="right");
 
   // plate_mounting
   translate([20, pcb_depth - pcb_radius+1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(hole=false);
@@ -48,7 +61,7 @@ color("SaddleBrown") difference() {
     translate([pololu_width/2-pololu_hole_spacing, pololu_depth/2-pololu_hole_spacing, -pcb_thickness/2-threaded_insert_height]) cylinder(h=threaded_insert_height, d=3);
   }
   
-  // TODO: make dependent on case size
+  // cable channel
   translate([65, 26, case_bottom_thickness/2]) {
     translate([-7.5,30,0]) linear_extrude(case_bottom_thickness/2+1) polygon([[7.5,0], [7.5,10.75], [0,10.75]]);
     cube([10, 40.75, case_bottom_thickness/2+1]);
@@ -74,18 +87,29 @@ color("SaddleBrown") difference() {
     }
   }
 
-  // hole for weight
-  hull() {
-    translate([5,5,0]) cylinder(h=1.5, d=10);
-    translate([pcb_width-2*pcb_radius-5,5,0]) cylinder(h=1.5, d=10);
-    translate([5,pcb_depth-2*pcb_radius-5,0]) cylinder(h=1.5, d=10);
-    translate([pcb_width-2*pcb_radius-5,pcb_depth-2*pcb_radius-5,0]) cylinder(h=1.5, d=10);
+  // hole for reset button
+  translate([reset_x - pcb_radius, reset_y - pcb_radius, 0]) cylinder(h=case_thickness, r=1);
+
+  // OPTIONAL: hole for weight
+  if (with_weight) {
+    hull() {
+      translate([5,5,0]) cylinder(h=1.5, d=10);
+      translate([pcb_width-2*pcb_radius-5,5,0]) cylinder(h=1.5, d=10);
+      translate([5,pcb_depth-2*pcb_radius-5,0]) cylinder(h=1.5, d=10);
+      translate([pcb_width-2*pcb_radius-5,pcb_depth-2*pcb_radius-5,0]) cylinder(h=1.5, d=10);
+    }
+    translate([pcb_width/2,pcb_depth/2+6,1.5]) mirror([1,0,0]) linear_extrude(0.2) text(text="noisy cricket", size=10, font="Liberation Sans:style=Bold", halign="center");
+    translate([pcb_width/2,pcb_depth/2-8,1.5]) mirror([1,0,0]) linear_extrude(0.2) text(text="© XenGi 2023", size=6, font="Liberation Sans:style=Bold", halign="center");
+    // threaded inserts
+    translate([10,10,1.5]) cylinder(h=threaded_insert_height, d=3);
+    translate([pcb_width-2*pcb_radius-10,10,1.5]) cylinder(h=threaded_insert_height, d=3);
+    translate([10,pcb_depth-2*pcb_radius-10,1.5]) cylinder(h=threaded_insert_height, d=3);
+    translate([pcb_width-2*pcb_radius-10,pcb_depth-2*pcb_radius-10,1.5]) cylinder(h=threaded_insert_height, d=3);
+    //reset button text
+    translate([reset_x - pcb_radius-1.4, reset_y - pcb_radius-1.5, 1.5]) mirror([1,0,0]) rotate([0,0,90]) linear_extrude(0.2) text(text="RESET ►", size=3, font="Liberation Sans:style=Bold", halign="right");
+  } else {
+    translate([pcb_width/2,pcb_depth/2+6,0]) mirror([1,0,0]) linear_extrude(0.2) text(text="noisy cricket", size=10, font="Liberation Sans:style=Bold", halign="center");
+    translate([pcb_width/2,pcb_depth/2-8,0]) mirror([1,0,0]) linear_extrude(0.2) text(text="© XenGi 2023", size=6, font="Liberation Sans:style=Bold", halign="center");
+    translate([reset_x - pcb_radius-1.4, reset_y - pcb_radius-1.5, 0]) mirror([1,0,0]) rotate([0,0,90]) linear_extrude(0.2) text(text="RESET ►", size=3, font="Liberation Sans:style=Bold", halign="right");
   }
-  translate([pcb_width/2,pcb_depth/2+1,1.5]) mirror([1,0,0]) linear_extrude(0.2) text(text="noisy cricket", size=10, font="Liberation Sans:style=Bold", halign="center");
-  translate([pcb_width/2,pcb_depth/2-11,1.5]) mirror([1,0,0]) linear_extrude(0.2) text(text="© XenGi 2023", size=6, font="Liberation Sans:style=Bold", halign="center");
-  // threaded inserts
-  translate([10,10,1.5]) cylinder(h=threaded_insert_height, d=3);
-  translate([pcb_width-2*pcb_radius-10,10,1.5]) cylinder(h=threaded_insert_height, d=3);
-  translate([10,pcb_depth-2*pcb_radius-10,1.5]) cylinder(h=threaded_insert_height, d=3);
-  translate([pcb_width-2*pcb_radius-10,pcb_depth-2*pcb_radius-10,1.5]) cylinder(h=threaded_insert_height, d=3);
-}
+}
\ No newline at end of file
diff --git a/upper_case.scad b/upper_case.scad
index 35b807c..4c61bc0 100644
--- a/upper_case.scad
+++ b/upper_case.scad
@@ -8,16 +8,16 @@ color("SaddleBrown") difference() {
   // case
   union() {
     hull() {
-      translate([-case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height/2, r=pcb_radius+1);
-      translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height/2, r=pcb_radius+1);
-      translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height/2, 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/2, r=pcb_radius+1);
+      translate([-case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height/2, r=pcb_radius+2);
+      translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=upper_case_height/2, r=pcb_radius+2);
+      translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height/2, r=pcb_radius+2);
+      translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=upper_case_height/2, r=pcb_radius+2);
     }
     translate([0,0,upper_case_height/2]) hull() {
-      translate([-case_thickness, -case_thickness, 0]) resize(newsize=[2*(pcb_radius+1),2*(pcb_radius+1),upper_case_height]) sphere(r=pcb_radius+1);
-      translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) resize(newsize=[2*(pcb_radius+1),2*(pcb_radius+1),upper_case_height]) sphere(r=pcb_radius+1);
-      translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) resize(newsize=[2*(pcb_radius+1),2*(pcb_radius+1),upper_case_height]) sphere(r=pcb_radius+1);
-      translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) resize(newsize=[2*(pcb_radius+1),2*(pcb_radius+1),upper_case_height]) sphere(r=pcb_radius+1);
+      translate([-case_thickness, -case_thickness, 0]) resize(newsize=[2*(pcb_radius+2),2*(pcb_radius+2),upper_case_height]) sphere(r=pcb_radius+2);
+      translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) resize(newsize=[2*(pcb_radius+2),2*(pcb_radius+2),upper_case_height]) sphere(r=pcb_radius+2);
+      translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) resize(newsize=[2*(pcb_radius+2),2*(pcb_radius+2),upper_case_height]) sphere(r=pcb_radius+2);
+      translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) resize(newsize=[2*(pcb_radius+2),2*(pcb_radius+2),upper_case_height]) sphere(r=pcb_radius+2);
     }
   }
 
@@ -35,9 +35,9 @@ color("SaddleBrown") difference() {
   translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=threaded_insert_height, d=3);
   translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=threaded_insert_height, d=3);
   
-  
-  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);
+  // space for screws from lower case
+  translate([20, pcb_depth - pcb_radius+1+case_thickness/2, 0]) cylinder(h=2.3, d=4.2);
+  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius+1+case_thickness/2, 0]) cylinder(h=2.3, d=4.2);
+  translate([20, -pcb_radius-1-case_thickness/2, 0]) cylinder(h=2.3, d=4.2);
+  translate([pcb_width-2*pcb_radius - 20, -pcb_radius-1-case_thickness/2, 0]) cylinder(h=2.3, d=4.2);
 }
diff --git a/util.scad b/util.scad
index 2249a91..c3a4c4f 100644
--- a/util.scad
+++ b/util.scad
@@ -17,8 +17,8 @@ upper_case_height = 5;
 
 standoff_height = 3;
 
-reset_x = 111;
-reset_y = 42;
+reset_x = 111.1;
+reset_y = 47.6;
 
 mx = 19.05;
 
@@ -29,7 +29,7 @@ mounting_holes = [
   [98.425, 69.0563]
 ];
 
-pololu_width = 0.8*2.54*10;
+pololu_width = 0.8*2.54*10+0.2;
 pololu_depth = 0.5*2.54*10+1;
 pololu_holes_radius = 1;
 pololu_hole_spacing = 0.1*2.54*10;