diff --git a/BLTouch.scad b/BLTouch.scad
index 35756f6..e1f7f15 100644
--- a/BLTouch.scad
+++ b/BLTouch.scad
@@ -21,8 +21,8 @@ module through(l=7, lh=3.3, lt=1, lb=1){
 }
 
 module m3 (h=8, lt=1){
-    translate([0,0,-lt])cylinder(h, d=2.5); // tapped M3
-    //translate([0,0,-lt])cylinder(h, d=4); // rutex insert
+    //translate([0,0,-lt])cylinder(h, d=2.5); // tapped M3
+    translate([0,0,-lt])cylinder(h, d=4); // rutex insert
 }
 
 module m2 (h=8, lt=1){
@@ -49,9 +49,7 @@ difference(){
     for(x=[(lb-hdb)/2,(lb-hdb)/2+hdb,lb/2]){
         translate([x,0,z])rotate([-90,0,0])m3(h=8);
     }
-    for(y=[mhb-wb/2,mhb-wb/2-15]){
 
-    }
     translate([0,mhb-6.65,5.9])rotate([0,90,0])through(l=lb+3, lh= lb);
     translate([0,mhb-6.65-14,5.9])rotate([0,90,0])through(l=lb+3, lh= lb);
 }
diff --git a/coolingFanDuct.scad b/coolingFanDuct.scad
index d85a920..abb5a5d 100644
--- a/coolingFanDuct.scad
+++ b/coolingFanDuct.scad
@@ -56,7 +56,7 @@ poszad = -zhbl+zad;
 
 module through(l=7, lh=2, lt=1, lb=1){
     union(){
-        translate([0,0,l-lh])cylinder(h=lh+lt, d=4);
+        translate([0,0,l-lh])cylinder(h=lh+lt, d=4.2);
         translate([0,0,-lb])cylinder(h=l+lh+lb, d=2.5);
     }
 }
diff --git a/coolingFanMount.scad b/coolingFanMount.scad
index 5eac124..270a170 100644
--- a/coolingFanMount.scad
+++ b/coolingFanMount.scad
@@ -29,8 +29,8 @@ module m3 (h=8, lt=1){
 }
 
 module m2 (h=8, lt=1){
-    translate([0,0,-lt])cylinder(h, d=1.5); // tapped M3
-    //translate([0,0,-lt])cylinder(h, d=3.2); // rutex insert
+    //translate([0,0,-lt])cylinder(h, d=1.5); // tapped M3
+    translate([0,0,-lt])cylinder(h, d=3.2); // rutex insert
 }
 
 module mount(){