diff --git a/maxi_cosi.scad b/maxi_cosi.scad
index a9d8528..0228287 100644
--- a/maxi_cosi.scad
+++ b/maxi_cosi.scad
@@ -1,10 +1,12 @@
 // Верхняя часть крепления для детских автокресел Maxi Cosi
 
-w = 65;
+$fn=64;
+w = 63;
 h1 = 75;
 w2 = 75;
 h2 = 59;
 r2 = 41;
+notch = 39;
 
 //mirror()
 difference()
@@ -23,10 +25,10 @@ difference()
                 translate([-0.01, 29.01, h1+0.01]) rotate([90, 180, 90]) linear_extrude(100) polygon([[0, 0], [0, 8], [5, 0]]);
                 translate([w+0.01, 50, h1+0.01]) rotate([90, 180, 0]) linear_extrude(100) polygon([[0, 0], [0, 8], [8, 0]]);
                 translate([-0.01, -50, h1+0.01]) rotate([90, 180, 180]) linear_extrude(100) polygon([[0, 0], [0, 8], [8, 0]]);
-                translate([w/2, 29+10-4.5, h1-49+37/2]) rotate([90, 0, 0]) cylinder(h=10, d=37, $fn=64);
-                translate([w/2-37/2, 29+10-4.5, h1-49+37/2]) rotate([90, 0, 0]) cube([37, 100, 10]);
+                translate([w/2, 29+10-4.5, h1-49+notch/2]) rotate([90, 0, 0]) cylinder(h=10, d=notch, $fn=64);
+                translate([w/2-notch/2, 29+10-4.5, h1-49+37/2]) rotate([90, 0, 0]) cube([notch, 100, 10]);
                 translate([w/2, 29+20-0.01, r2]) rotate([90, 0, 0]) cylinder(h=20, r=r2, $fn=128);
-                translate([w/2-50/2, 5, 0]) cube([50, 29-7-6, h1+10]);
+                translate([w/2-50/2, 4, 0]) cube([50, 29-6-6, h1+10]);
             }
             translate([17, 23, h1-39])
             rotate([90, 90, 0])
@@ -51,7 +53,7 @@ difference()
     }
 }
 
-//mirror()    
+//mirror()
 translate([-150, 0, -75])
 intersection()
 {
@@ -65,7 +67,7 @@ intersection()
     {
         translate([-1, -1, -1]) cube([102, 42, 32]);
         //translate([100, -1, -1]) cube([30, 42, 11]);
-        translate([0, 20, -1]) cube([120, 10, 32]);
-        translate([110, 10, -1]) cube([10, 20, 32]);
+        translate([0, 20-0.2, -1]) cube([121+0.2, 10+0.4, 32]);
+        translate([111, 10-0.2, -1]) cube([10+0.2, 20+0.4, 32]);
     }
 }