diff --git a/Sasza/bron/ft1911/thumb_rest.scad b/Sasza/bron/ft1911/thumb_rest.scad
index d2b182e..0fa5f3f 100644
--- a/Sasza/bron/ft1911/thumb_rest.scad
+++ b/Sasza/bron/ft1911/thumb_rest.scad
@@ -1,14 +1,18 @@
 include <BOSL2/std.scad>
 
+// external model
 down(7.3) left(20) back(0.35) import("/home/sasza/Pobrane/1.stl", center=true);
 
 t = 1.5;
 frame_dist = 0.4;
+$fn = 46;
 
-thumb_size = [12,14,t];
+thumb_size = [14,17,2];
 thumb_fwd = 10;
 thumb_up = 2;
+thumb_clearance = 0.4;
 
+// base for the hinge
 chain_hull() {
     cyl(d=8.5, h=2.22, anchor=TOP, $fn=36);
     down(t - frame_dist) right(thumb_fwd) fwd(thumb_up) zrot(180+45)
@@ -17,23 +21,29 @@ chain_hull() {
 
 hinge_d = 2.5;
 hinge_hole = 0.8;
-hinge_num = 4;
+hinge_num = 5;
 hinge_h = 3; 
 
+// hinged part
 down(t - frame_dist) right(thumb_fwd) fwd(thumb_up) zrot(180+45) xrot(-90) difference() {
-    down(thumb_size[1]/2) right(hinge_d/2) fwd(hinge_d/2 + t + 0.1) for(i=[0 : hinge_num]) {
-        up(i * thumb_size[1] / hinge_num)
+    down(thumb_size[1]/2) right(hinge_d/2) fwd(hinge_d/2 + t + 0.1)
+        for(i=[0 : hinge_num-1]) {
+        up(hinge_h/2 + i * (thumb_size[1]-hinge_h) / (hinge_num-1))
             if(i%2==0) {
-                back(0.25) cuboid([hinge_d,hinge_d+0.5,hinge_h], rounding=1, edges="Z");
+                back(t/2) cuboid([hinge_d,hinge_d+t,hinge_h], rounding=1, edges="Z");
             } else {
-                left(0.25) cuboid([hinge_d+0.5,hinge_d,hinge_h], rounding=1, edges="Z");
+                left(t/2) cuboid([hinge_d+t,hinge_d,hinge_h], rounding=1, edges="Z");
 
             }
     }
+    // hole for hinge wire
     up(0) right(hinge_d/2) fwd(hinge_d/2 + t + 0.1)
         cyl(d=hinge_hole, h=thumb_size[1]*2, $fn=36);
 }
 
+// thumb part
 right(thumb_fwd) fwd(thumb_up) zrot(180+45) down(t - frame_dist) yrot(-90) down(t)
-    up(hinge_d/2 + t/2)
+    up(hinge_d/2 + t/2) union() {
     cuboid(thumb_size, anchor=LEFT+BOTTOM, rounding=t/2, edges=["X","Z", RIGHT]);
+    cuboid([t,thumb_size[1]-t,thumb_clearance], anchor=LEFT+TOP, chamfer=thumb_clearance/2, edges=BOTTOM);
+}