Lots of data from original, and connector dimentions

cardholder.scad

@@ -2,12 +2,24 @@
 // 1 to 1 copy of previous blender version but with parameters for changeing dimention
 
 //Constants
-card_x = 54;
-card_y = 80;
-card_space = 2;
-wall_thickness = 3;
-plate_height = 3;
+card_x = 54; //original 54
+card_y = 80; //original 80
+card_space = 2; //original 2
+wall_thickness = 2; //original 2
+plate_height = 2; //original 2
 wall_height = 10;
+shortwall = card_x/(card_y/card_x);
+
+//Connecting piece
+//the "female" part is 21mm at the biggest point and 12.5mm at the smallest and 10mm deep
+//the "male" part is  19.8mm at the biggest point and 10.46mm at smallest and 11.4mm long
+//the odd numbers are because i used a manualy freehand modifed box with no real grid snapping, and some random scaling
+female_con_x = 10;
+female_con_y1 = 21;
+female_con_y2 = 12.5;
+male_con_x = 11.4;
+male_con_y1 = 19.8;
+male_con_y2 = 10.46;
 
 //Base plate
 cube(size = [card_x+card_space+wall_thickness*2, card_y+card_space+wall_thickness*2,plate_height], center = true);
@@ -16,6 +28,7 @@ cube(size = [card_x+card_space+wall_thickness*2, card_y+card_space+wall_thicknes
 %cube(size = [card_x,card_y,9], center = true);
 %cube(size = [card_y,card_x,9], center = true);
 
+%cube(size= [shortwall, 100,20], center = true);
 
 // Long wall 1 of 4
 translate([  (card_x+card_space+wall_thickness*2)/2 , (card_y+card_space+wall_thickness*2)/2 ,plate_height/2])
@@ -35,4 +48,21 @@ cube(size = [wall_thickness,(card_y-card_x)/2+wall_thickness+card_space/2,wall_h
 // Long wall 4 of 4
 translate([  -(card_x+card_space+wall_thickness*2)/2 , -(card_y+card_space+wall_thickness*2)/2 ,plate_height/2])
 rotate([0,0,0])
-cube(size = [wall_thickness,(card_y-card_x)/2+wall_thickness+card_space/2,wall_height] ,center = false);
+cube(size = [wall_thickness,(card_y-card_x)/2+wall_thickness+card_space/2,wall_height] ,center = false);
+
+//Shortwalls
+//the cut to make the space between the walls was originaly 37mm
+translate([  -(card_x+card_space+wall_thickness*2)/2 , -(card_y+card_space+wall_thickness*2)/2 ,plate_height/2])
+rotate([0,0,0])
+cube(size = [wall_thickness, shortwall, wall_height] ,center = false);
+
+//Round Cut
+// was made with a cylinder with radius=32 scaled in x and y by 0.8, resulting in R=25.6
+translate([0,card_y,0])
+cylinder(25.6, 25.6, 25.6);
+
+
+
+//Connecting piece
+//the "female" part is 21mm at the biggest point and 12.5mm at the smallest
+//the "male" part is