corrected minor errors, added side cuts

openscad/foreign/sc808/io-shield.scad

@@ -7,14 +7,16 @@ mt=2;
 q=0.01; //used as variable to remove manifold-glitches in preview. can be set to "0" in final version
 $fn=100;
 // shield:
-shield_w=177.5; // let's hope that fits onto my delta...
+shield_w=178; // let's hope that fits onto my delta...
 shield_h=41;
 shield_d=10; //around 11.5 in the original, but that is not needed
 shield_tab_emboss_d=1; // that lowered lip, that the central and outer tabs mounts onto, 1mm (or one sheet-thickness) lower than the rest
 shield_tab_emboss_l=22; // length of the above described cutouts
+shield_tab_emboss_l2=shield_tab_emboss_l/2; // length of the side cutouts
+
 shield_holes=1; // draw holes if >0
 shield_hole_d1=2.75;
-shield_hole_d2=shield_hole_d1+0.5; // conical holes
+shield_hole_d2=shield_hole_d1+0.5; // slightly conical holes for better inserting
 // for separating the shield into two halves
 shield_center_slot=1; // draw slot if >0
 shield_center_slot_w=0.5;
@@ -37,26 +39,19 @@ module shield(){
     difference(){
         cube([shield_w,shield_h,shield_d],center=true); // basebox
         translate([0,0,mt/2+q])cube([shield_w-2*mt,shield_h-2*mt,shield_d-mt],center=true); // main hollowing
-        for(x=[-shield_w/2+shield_tab_emboss_l/2,shield_w/2-shield_tab_emboss_l/2]){ // tab-cutout
+        for(x=[-shield_w/2+shield_tab_emboss_l/2,shield_w/2-shield_tab_emboss_l/2]){ 
-            translate([x,shield_h/2-shield_tab_emboss_d/2,0])cube([shield_tab_emboss_l+q,shield_tab_emboss_d+q,shield_d+q],center=true);// supportblock for edge-cutout
+            translate([x,shield_h/2-shield_tab_emboss_d/2,0])cube([shield_tab_emboss_l+q,shield_tab_emboss_d+q,shield_d+q],center=true);// top edge-cutout
         }
-        if (shield_holes>0) {
+        for(x=[-shield_w/2+shield_tab_emboss_d/2,shield_w/2-shield_tab_emboss_d/2]){ 
-            // some holes all around, (left, than clockwise, viewed from behind) 
+            translate([x,shield_h/2-shield_tab_emboss_l2/2,0])cube([shield_tab_emboss_d+q,shield_tab_emboss_l2+q,shield_d+q],center=true);// side edge-cutout
-            // shield_hole(x,y,z,rotx,roty), "z" is the distance from lip-edge to the center of the hole, x is from center
-            shield_hole(-shield_w/2+mt/2,-0.5,4,0,-90); //left side
-            #shield_hole(-shield_w/2+mt/2+4.5,shield_h/2-shield_tab_emboss_d-mt/2-q*0.5,6.25,-90,0); //top side, 1st from left (recessed)
-            shield_hole(-shield_w/2+mt/2+29.5,shield_h/2-mt/2,4.4,-90,0); //top side, 2nd from left 
-            shield_hole(-shield_w/2+mt/2+148.5,shield_h/2-mt/2,4.4,-90,0); //top side, 3rd from left
-            shield_hole(-shield_w/2+mt/2+162,shield_h/2-shield_tab_emboss_d-mt/2-q*0.5,5.5,-90,0); //top side, 4th from left (recessed)
-            shield_hole(-shield_w/2+mt/2+173,shield_h/2-shield_tab_emboss_d-mt/2-q*0.5,6.25,-90,0); //top side, 5th from left (recessed)
-            shield_hole(shield_w/2-mt/2,-0.5,4,0,90); //right side ok
-            shield_hole(-shield_w/2+mt/2+173,-shield_h/2+mt/2,4.25,90,0); // bottom side, 1st one from right
-            shield_hole(-shield_w/2+mt/2+56.25,-shield_h/2+mt/2,4.25,90,0); //bottom side, 2nd one from right
-            shield_hole(-shield_w/2+mt/2+4.5,-shield_h/2+mt/2,4.25,90,0); //bottom side, 3rd one from right
         }
+
+  }
+        for(x=[-shield_w/2+shield_tab_emboss_l/2+mt,shield_w/2-shield_tab_emboss_l/2-mt]){ 
+            translate([x,shield_h/2-shield_tab_emboss_d/2-mt,0])cube([shield_tab_emboss_l+mt+q,shield_tab_emboss_d+q,shield_d+q],center=true);// supportblock for top edge-cutout
+        for(x=[-shield_w/2+shield_tab_emboss_d/2+shield_tab_emboss_d+mt/2,shield_w/2-shield_tab_emboss_d/2-shield_tab_emboss_d-mt/2]){ 
+            translate([x,shield_h/2-shield_tab_emboss_l2/2-mt,0])cube([shield_tab_emboss_d+q,shield_tab_emboss_l2+q,shield_d+q],center=true);// supportblock for side edge-cutout
         }
-        for(x=[-shield_w/2+shield_tab_emboss_l/2+mt/2,shield_w/2-shield_tab_emboss_l/2-mt/2]){ // tab-cutout support-structure
-            translate([x,shield_h/2-shield_tab_emboss_d/2-mt,0])cube([shield_tab_emboss_l+mt+q,shield_tab_emboss_d+q,shield_d+q],center=true);// supportblock for edge-cutout
     }
         cube([mt*4,shield_h,shield_d],center=true); // central support-block
 }
@@ -75,17 +70,31 @@ module shield_1(){
 else shield();  
 }
 
-// second iteration: add "modules"
+// second iteration: add some holes
 module shield_2(){
     difference(){
         shield_1();
+        if (shield_holes>0) {
+            // some holes all around, (left, than clockwise, viewed from behind) 
+            // shield_hole(x,y,z,rotx,roty), "z" is the distance from lip-edge to the center of the hole, x is from center
+            shield_hole(-shield_w/2+mt/2,-0.5,4,0,-90); //left side
+            shield_hole(-shield_w/2+mt/2+4.5,shield_h/2-shield_tab_emboss_d-mt/2-q*0.5,6.25,-90,0); //top side, 1st from left (recessed)
+            shield_hole(-shield_w/2+mt/2+29.5,shield_h/2-mt/2,4.4,-90,0); //top side, 2nd from left 
+            shield_hole(-shield_w/2+mt/2+148.5,shield_h/2-mt/2,4.4,-90,0); //top side, 3rd from left
+            shield_hole(-shield_w/2+mt/2+162,shield_h/2-shield_tab_emboss_d-mt/2-q*0.5,5.5,-90,0); //top side, 4th from left (recessed)
+            shield_hole(-shield_w/2+mt/2+173,shield_h/2-shield_tab_emboss_d-mt/2-q*0.5,6.25,-90,0); //top side, 5th from left (recessed)
+            shield_hole(shield_w/2-mt/2,-0.5,4,0,90); //right side
+            shield_hole(-shield_w/2+mt/2+173,-shield_h/2+mt/2,4.25,90,0); // bottom side, 1st one from right
+            shield_hole(-shield_w/2+mt/2+56.25,-shield_h/2+mt/2,4.25,90,0); //bottom side, 2nd one from right
+            shield_hole(-shield_w/2+mt/2+4.5,-shield_h/2+mt/2,4.25,90,0); //bottom side, 3rd one from right
+        }
     }
 }
 // #####################################
 // DRAWING:
 
 difference(){
-    shield_1();
+    shield_2();
     translate([0,0,6])cube([200,100,5],center=true);
     translate([0,0,-5.45])cube([200,100,5],center=true);
 }