model for Dolica tripod quick release mount.

prepare for 4 M3 screws/hexnuts.

3d_models/dolica_quick_Release.scad

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+// https://www.thingiverse.com/thing:1729344/#files
+// Dolica Tripod Quick Release Base by tdeagan is licensed under the Creative Commons - Attribution license. 
+
+// Remix by Marc Poulhiès.
+
+dim_x = 40.35;
+dim_y = 39.3;
+dim_y2 = 32.375;
+dim_z = 3;
+dim_z2 = 9;
+
+hex_nut_diam = 1.8*3; // M3
+screw_diam = 3.3; // M3
+
+//translate([0,0,dim_z2-dim_z/2]){
+//    color("green"){cube([dim_x+10,dim_y2,dim_z2-dim_z],true);}
+//}
+
+module screw_hole(x,y) {
+            translate([x,y,-2]){
+            #cylinder(h=30,d=screw_diam, center=true, $fn=20);
+            #cylinder(h=3, d=hex_nut_diam, center=true, $fn=6);
+        }
+}
+
+translate([0,0,dim_z2/2]){
+    difference(){
+        translate([0,0,dim_z2/2-dim_z]){
+            cube([dim_x,dim_y,dim_z2],true);
+        }
+        
+        translate([-(dim_x+4)/2,(dim_y/2),0]){
+        rotate([30,0,0]){
+            #cube([dim_x+4,10,10]);
+        }}
+        
+        mirror([0,1,0]){
+        translate([-(dim_x+4)/2,(dim_y/2),0]){
+        rotate([30,0,0]){
+            #cube([dim_x+4,10,10]);
+        }}}
+        
+        screw_hole(12,12);
+        screw_hole(12,-12);
+        screw_hole(-12,-12);
+        screw_hole(-12,12);
+
+    }
+}
+
+