diff --git a/openscad/foreign/sc808/io-shield-blank.png b/openscad/foreign/sc808/io-shield-blank.png
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diff --git a/openscad/foreign/sc808/io-shield-blank.stl b/openscad/foreign/sc808/io-shield-blank.stl
new file mode 100644
index 0000000..156b401
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diff --git a/openscad/foreign/sc808/io-shield-ports.png b/openscad/foreign/sc808/io-shield-ports.png
new file mode 100644
index 0000000..ada7a1c
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diff --git a/openscad/foreign/sc808/io-shield-ports.stl b/openscad/foreign/sc808/io-shield-ports.stl
new file mode 100644
index 0000000..c0d1114
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diff --git a/openscad/foreign/sc808/io-shield.scad b/openscad/foreign/sc808/io-shield.scad
index 4d0c5fc..cafa041 100644
--- a/openscad/foreign/sc808/io-shield.scad
+++ b/openscad/foreign/sc808/io-shield.scad
@@ -14,7 +14,7 @@ shield_tab_emboss_d=1; // that lowered lip, that the central and outer tabs moun
 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_holes=1; // draw holes if >0. the perimeter-holes are manually placed, and should be disabled, if many vars get altered! (and then drilled manually)
 shield_hole_d1=2.75;
 shield_hole_d2=shield_hole_d1+0.5; // slightly conical holes for better inserting
 // for separating the shield into two halves
@@ -28,10 +28,84 @@ m_grill_h=shield_h*0.75-m_grill_w-2*mt;
 m_grill_skew=25;
 m_grill_offset=5;
 m_grill_spacing=m_grill_w;
-
+//port ethernet:
+p_eth_hole_dist=27.5;
+p_eth_hole_dia=4.5;
+p_eth_slack=0.5;
+p_eth_base_x=22+p_eth_slack;
+p_eth_base_y=21.75+p_eth_slack;
+p_eth_cut_x=16+p_eth_slack;
+p_eth_cut_y=13.15+p_eth_slack;
+p_eth_cut_z=mt;
+p_eth_cut_x_offset=0;
+p_eth_cut_y_offset=1.5;
+//port usb:
+p_usb_hole_dist=30;
+p_usb_hole_dia=4.5;
+p_usb_slack=0.5;
+p_usb_base_x=23+p_eth_slack;
+p_usb_base_y=16.5+p_eth_slack;
+p_usb_cut_x=16+p_eth_slack;
+p_usb_cut_y=15+p_eth_slack;
+p_usb_cut_z=mt;
+p_usb_cut_x_offset=0;
+p_usb_cut_y_offset=0;
+//port vga:
+p_vga_hole_dist=25;
+p_vga_hole_dia=4.5;
+p_vga_slack=0.5;
+p_vga_base_x=34+p_eth_slack;
+p_vga_base_y=15.25+p_eth_slack;
+p_vga_cut_x=15.75+p_eth_slack;
+p_vga_cut_y=8+p_eth_slack;
+p_vga_cut_z=mt;
+p_vga_cut_x_offset=0;
+p_vga_cut_y_offset=0;
+//port slot:
+p_slot_hole_dist=30;
+p_slot_hole_dia=mt*3;
 // #####################################
 // MODEL:
 // mounting holes around the shield perimeter
+module port_ethernet(){
+    cube([p_eth_base_x,p_eth_base_y,mt],center=true);
+    translate([p_eth_cut_x_offset,p_eth_cut_y_offset,p_eth_cut_z+mt/2])cube([p_eth_cut_x,p_eth_cut_y,p_eth_cut_z+mt],center=true);
+    hull(){
+        translate([-p_eth_hole_dist/2,0,0])cylinder(d=p_eth_hole_dia+mt,h=mt,center=true);
+        translate([p_eth_hole_dist/2,0,0])cylinder(d=p_eth_hole_dia+mt,h=mt,center=true);
+   }
+   translate([-p_eth_hole_dist/2,0,mt*1.5])cylinder(d=p_eth_hole_dia,h=mt*2,center=true);
+   translate([p_eth_hole_dist/2,0,mt*1.5])cylinder(d=p_eth_hole_dia,h=mt*2,center=true);
+}
+
+module port_usb(){
+    cube([p_usb_base_x,p_usb_base_y,mt],center=true);
+    translate([p_usb_cut_x_offset,p_usb_cut_y_offset,p_usb_cut_z+mt/2])cube([p_usb_cut_x,p_usb_cut_y,p_usb_cut_z+mt],center=true);
+    hull(){
+        translate([-p_usb_hole_dist/2,0,0])cylinder(d=p_usb_hole_dia+mt,h=mt,center=true);
+        translate([p_usb_hole_dist/2,0,0])cylinder(d=p_usb_hole_dia+mt,h=mt,center=true);
+   }
+   translate([-p_usb_hole_dist/2,0,mt*1.5])cylinder(d=p_usb_hole_dia,h=mt*2,center=true);
+   translate([p_usb_hole_dist/2,0,mt*1.5])cylinder(d=p_usb_hole_dia,h=mt*2,center=true);
+}
+
+module port_vga(){
+    cube([p_vga_base_x,p_vga_base_y,mt],center=true);
+    translate([p_vga_cut_x_offset,p_vga_cut_y_offset,p_vga_cut_z+mt/2])cube([p_vga_cut_x,p_vga_cut_y,p_vga_cut_z+mt],center=true);
+    hull(){
+        translate([-p_vga_hole_dist/2,0,0])cylinder(d=p_vga_hole_dia+mt,h=mt,center=true);
+        translate([p_vga_hole_dist/2,0,0])cylinder(d=p_vga_hole_dia+mt,h=mt,center=true);
+   }
+   translate([-p_vga_hole_dist/2,0,mt*1.5])cylinder(d=p_vga_hole_dia,h=mt*2,center=true);
+   translate([p_vga_hole_dist/2,0,mt*1.5])cylinder(d=p_vga_hole_dia,h=mt*2,center=true);
+}
+
+module port_slot(){
+    hull(){
+        translate([-p_slot_hole_dist/2,0,mt])cylinder(d=p_slot_hole_dia,h=mt*2,center=true);
+        translate([p_slot_hole_dist/2,0,mt])cylinder(d=p_slot_hole_dia,h=mt*2,center=true);
+    }
+}
 module shield_hole(x,y,z,rotx,roty){
     translate([x,y,shield_d/2-z])rotate([rotx,roty,0])cylinder(d1=shield_hole_d1,d2=shield_hole_d2,h=mt+q,center=true);
 }
@@ -76,7 +150,7 @@ module shield_2(){
     difference(){
         shield_1();
         if (shield_holes>0) {
-            // some holes all around, (left, than clockwise, viewed from behind) 
+            // some holes all around, (left, than clockwise, viewed from behind). THESE ARE MANUALLY PLACED!
             // 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)
@@ -111,27 +185,32 @@ module shield_grill(){
     }
     }
 }
+// final iteration: with ports (manual placement)
+module shield_ports(){
+    difference(){
+        shield_2();
+        translate([-75,-1,-3*mt-q])rotate([0,0,-90])#port_ethernet();
+        translate([-37.5,-1,-3*mt-q])rotate([0,0,-90])#port_ethernet();
+        translate([22.5,-1,-3*mt-q])rotate([0,0,-90])#port_ethernet();
+        translate([50,0,-3*mt-q])rotate([0,0,-90])#port_usb();
+//flipped and embossed so that only 1mm of the plate thickness is left, due to the way, d-sub is mounted, and no support is needed for printing
+        translate([75,-1,-mt-(mt-1)])rotate([180,0,-90])port_vga(); 
+        // slots
+        for (x=[-60,-52.5,-22.5,-15,-7.5,7.5,37.5,62.5]){
+            translate([x,0,-3*mt-q])rotate([0,0,90])#port_slot();
+        }
+    }
+}
 // #####################################
 // DRAWING:
 
-//difference(){
-    shield_grill();
-//    translate([0,0,6])cube([200,100,5],center=true);
-//    translate([0,0,-5.45])cube([200,100,5],center=true);
-//}
-
-
-
-
-
-
-// todo: 
-// shield holes durchgängig
-// seitlicher tab hinzufügen, loch beachten!
-
-
+//    shield_2();
+
+//port_ethernet();
+shield_ports();
 
 
+// todo: add text