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Adjust the size of screw and rudder holes when known

rudder_servo.scad

@@ -0,0 +1,65 @@
+$fn = 30; // number of faces in screw holes
+
+thickness = 5; // thickness, this doesnt work
+
+// main body
+width = 70;
+depth = 70;
+height = 32;
+
+// servo
+sWidth = 15;
+sDepth = 32;
+sHeight = 5;
+
+cWidth = 10; // cutout width
+
+sDiameter = 5; // screw diameter
+
+rDiameter  = 10; //rudder rod diameter (readjust)
+
+// top surface
+difference()
+{
+    // main
+    cube([width, depth, thickness]);    
+    
+      union()
+    {
+        // edge cutout
+        translate([0, 10+thickness, 0])
+        cube([cWidth, 45, thickness]);
+        
+         // edge cutout
+        translate([width-cWidth, 10+thickness, 0])
+        cube([cWidth, 45, thickness]);
+        
+        // servo hole
+        translate([(width/2)-(sWidth/2), 30, 0])
+        cube([sWidth, sDepth, sHeight]);
+        
+        // screw holes
+        
+        // upper left
+        translate([cWidth/2, width-cWidth/2, 0])
+        cylinder(h=thickness, d=sDiameter);
+        // upper right
+        translate([depth-cWidth/2, width-cWidth/2, 0])
+        cylinder(h=thickness, d=sDiameter);
+        
+       
+        // lower right
+        translate([depth-cWidth/2, cWidth-2.5, 0])
+        cylinder(h=thickness, d=sDiameter);
+        // lower left
+        translate([cWidth/2, cWidth-2.5, 0])
+        cylinder(h=thickness, d=sDiameter);
+        
+        
+        //rudder hole
+        translate([(width/2),15,0])
+        cylinder(h=thickness,d=rDiameter);
+    }
+}
+
+