diff --git a/ZSlider_mid.scad b/ZSlider_mid.scad
index b19fc52..68e9757 100644
--- a/ZSlider_mid.scad
+++ b/ZSlider_mid.scad
@@ -15,12 +15,7 @@ module roundcube(x,y,z,rad=5) {
 }
 
 module body() {
-    //cube([49,40,10]);
-    difference(){
-        roundcube(49,40,20);
-        translate([4.5,0,10]) cube([40.3,40,11]);
-    }
-    
+    roundcube(40,40,10);
 }
 
 difference() {
@@ -39,20 +34,24 @@ module hholes() {
 
 module bigholes() {
     translate([15,7.5,0]) rotate([0,-90,0]) {
-        M4Hole(11);
-        M4Head(5);
-        };
-    translate([15,32.5,0]) rotate([0,-90,0]) {
-        M4Hole(11);
-        M4Head(5);
+        hull() {
+            M3Hole(11);
+            translate([0,-4,0]) M3Hole(11);
+        }
+        hull() {
+            M3Head(5);
+            translate([0,-4,0]) M3Head(5);
+        }
     };
-
-    translate([49-15,7.5,0]) rotate([0,-90,0]) {
-        M4Hole(11);
-        M4Head(5);
-    };
-    translate([49-15,32.5,0]) rotate([0,-90,0]) {
-        M4Hole(11);
-        M4Head(5);
+    
+    translate([35,7.5,0]) rotate([0,-90,0]) {
+        hull() {
+            M3Hole(11);
+            translate([0,-4,0]) M3Hole(11);
+        }
+        hull() {
+            M3Head(5);
+            translate([0,-4,0]) M3Head(5);
+        }
     };
 }
\ No newline at end of file
diff --git a/heated-bed-corner-mounts.scad b/heated-bed-corner-mounts.scad
index a3a7376..e50ef60 100644
--- a/heated-bed-corner-mounts.scad
+++ b/heated-bed-corner-mounts.scad
@@ -106,7 +106,7 @@ module custom_nut_part(){
             }
 			
 			#translate([12.3, 12.3, -1]) cylinder(h = 22, d=3.5, $fn=30); // Screw cut
-			//translate([12.3, 12.3, 4]) cylinder(h = 10, d=10.2, $fn=50); // Circle end
+			translate([12.3, 12.3, 6]) cylinder(h = 10, d=10.2, $fn=50); // Circle end
 			//translate([-5.2, 2, 4]) rotate(a=-45, v=z) cube([10.2, 20, 10]); // Box cut
 			#translate([12.3, 12.3, -1]) rotate([0,-90,0]) M3Nut(3); // Nut hole
 			//translate([-25, 5, -1]) rotate(a=-45, v=[0, 0, 1]) cube([40, 20, 22]);
@@ -140,8 +140,8 @@ module custom_nut_part(){
 
 
 //top_part();
-//bottom_part();
-custom_nut_part();
+bottom_part();
+ //custom_nut_part();
 //crooked_nut_part();
 
 
diff --git a/helpers/Holes.scad b/helpers/Holes.scad
index e441e57..22ad0fe 100644
--- a/helpers/Holes.scad
+++ b/helpers/Holes.scad
@@ -3,7 +3,7 @@
 M3HoleDiam = 3.4;
 M4HoleDiam = 4.4;
 
-M3NutDiam=6.01+.4;
+M3NutDiam=6.01+.25;
 
 _printoffset=.3;
 M3HeadDiam = 5.5+_printoffset;