diff --git a/transmission.scad b/transmission.scad
index c972ab3..c305be1 100644
--- a/transmission.scad
+++ b/transmission.scad
@@ -1,44 +1,67 @@
+epsilon = 0.01;
+$fn=100;
 
-module transmission(hauteur, diametre0, diametre1, diametre2){
+module tube(h, de, di){
+    translate([0,0,h/2-epsilon])
      difference(){
-          cylinder(h=hauteur, r=diametre0/2);
-          translate([0,0,-1]){
-               difference (){
-                    cylinder(h=hauteur-12.35+1, r=diametre0/2+1);
-                    cylinder(h=hauteur-12.35+1, r=diametre1/2);
-               };
-               difference (){
-                    cylinder(h=hauteur-18.85+1, r=diametre1/2+1);
-                    cylinder(h=hauteur-18.85+1, r=diametre2/2);
-               };
-               cylinder(h=13+1, r=2);
-          };
-          translate([0,0,hauteur+1-18]){
-               cylinder(h=18, r=5.6/2);
-          };
-          translate([0,0,17.1/2+1+hauteur-17.1])
-               {
-                    cube([9.6,3.1,17.1+1],center=true);
-                    cube([3.1,9.6,17.1+1],center=true);
-               }
+          cylinder(h, d = de, center = true);
+          cylinder(h+epsilon, d = di, center = true);
      }
 }
 
-$fn=100;
+module transmission(h, d0, d1, d2, h1, h2, p1, p2, d3, d4,l1, l2){
+     difference (){
+          cylinder(h, d=d0);
+          tube (h - h1, de = d0 + epsilon, di = d1);
+          tube(h - h2, de = d1 + epsilon, di = d2);
+          translate([0,0, h - p1 + epsilon]) cylinder(h= p1, d = d4);
+          translate([0,0,-epsilon]) cylinder(h = h - h2, d=d3);
+          translate([0,0,h-p2/2]){
+              minkowski(){
+                  sphere(d=1);
+              cube([l1,l2,p2+epsilon], center=true);
+              }
+              minkowski(){
+                  sphere(d=1);
+              cube([l2,l1,p2+epsilon], center=true);
+              }
+          }
+      };
+      
+    translate([0,0,115])
+      mirror([0,0,1])
+      difference(){
+       translate([0,0,82.5-p2]){
+          translate([0,0,p2/2]){
+            cube([l1,l2,p2], center=true);
+            cube([l2,l1,p2], center=true);
+          }
+          cylinder(p2, d=d4);
+      }
+      translate([0,0,96])
+        difference(){
+            cylinder(50, d=50,center=true);
+            translate([0,0,-40])
+                minkowski(){
+                    cylinder(50, d1=50, d2=0, center=true);
+                    sphere(d=3);
+                }
+      }
+
+  }
+}
 
 transmission(
-     hauteur=31.65,
-     diametre0=14,
-     diametre1=13,
-     diametre2=10.5
-     );
-
-/* base (hauteur=31, diam=34, */
-/*     diam2 = 20.8, diam3 = 22.5, */
-/*     decoupe = 16.9, hcube = 10, */
-/*     halesage=4, dalesage=8, */
-/*     dvis = 4, largeurcroix = 0.7 */
-/* ); */
-
-// translate([diam,0,0])
-//cylinder(h,diam);
+     h=31.65,
+     d0=14,
+     d1=12.5,
+     d2=10.5,
+     h1 = 12.35,
+     h2 = 18.85,
+     p1 = 18,
+     p2 = 17.1,
+     d3 = 4,
+     d4 = 5.5,
+      l1 = 10,
+      l2 = 3
+);