refined helix

openscad/foreign/parametric-helix_haystack-mod/haystack_logo_final.svg

@@ -0,0 +1,58 @@
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openscad/foreign/parametric-helix_haystack-mod/helix_haystack.scad

@@ -0,0 +1,97 @@
+// number of fragments | a higher fragment count will result in slower render times '20' is sufficient.
+fn = 30; // [0:100]
+//  "sugar phosphate backbones" | part of helix_base module | if adjusted also consider adjusting 'post_distance_apart' or 'center_bridge_length'.
+post_radius = 3.5; // [0:500]
+post_hole_radius = 1.25; // [0:500]
+// part of helix_base module | if adjusted also consider adjusting 'center_bridge_length'.
+post_distance_apart = 15; // [0:500]
+// "base pairs" length between "sugar phosphate backbones" | part of helix_base module | if adjusted also consider adjusting 'post_distance_apart'.
+center_bridge_length = 24; // [0:500]
+// part of helix_base module | thickness of "basepairs" in relevence to the the Y-axis of 'helix_base' before "linear_extrude" is implemented. further explanation is below.
+center_bridge_width = .8; // [0:0.1:500]
+// 'helix_height' adjusts the height of the linear_extruded 'helix_base' module | 'helix_height, helix_twists, helix_twists' all work hand in hand and should be experimented to fully understand the linear_extrude's nature.
+helix_height = 120; // [0:500]
+// 'helix_twists' adjusts the degree of twist in the linear_extruded 'helix_base' module.
+helix_twists = 400; // [0:3600]
+// 'helix_slices' adjusts the number of slices used in the linear_extruded 'helix_base' module | more slices = higher resolution and longer render times, less slices = the contrary | 200 is sufficient.
+helix_slices = 600; // [0:500]
+// this is fun try changing from 0-3 to scale 'helix_base' as it reaches its specified height in 'helix_height' | '1' = 1to1 scale, 0 = 1to0, 2 = 1to2 scale and so on in sequential order.
+helix_scale = 1; // [0:10]
+// the radius of the differenced circle that creates the spaces between each "base pair" | if adjusted you may also want to adjust 'center_bridge_length' and 'post_distance_apart'.
+spacer_radius = 11.6; // [0:500]
+// the height of the differenced circle changing this will result in a visual thickness change, in the Z-axis, of each "basepair".
+spacer_height = 4; // [0:550]
+// the point in the Z-axis at which the spacers will start appearing | 'spacer_start, spacer_increment_distance, and spacer_increment_height all work together to create the "base pairs/ bridges" that appear between each "sugar phosphate backbone/post".
+spacer_start = 0; // [0:550]
+// the distance between each spacer changing this will result in a visual thickness change, in the Z-axis, of each "basepair".
+spacer_increment_distance = 6; // [0:500]
+// the height to which the spacers ascend to and then stop being produced.
+spacer_increment_height = helix_height; // [0:500]
+// the radius of the circle where the standing platform is located at the base of the helix.
+base_platform_radius = 30; // [0:500]
+base_platform_inner_radius = 25;
+// the height of the above said platform.
+base_platform_height = 12; // [0:100]
+// the controls the number of sides the platform has, 0 defaults to 'fn'.  3, 4, 5, 6 ...
+base_platform_shape = 6; // [0:50]
+
+usb_mount_hole_spacing = 15; // 19-(2*2) ?
+usb_mount_hole_dia = 2.0; // ?
+usb_height = 4.1;
+usb_rectangular_width = 11+1; //presumeably this is 19-4-4 = 11 plus one for wiggle room. needs testing. 
+
+module helix_basic(){
+    translate([-post_distance_apart,0,0]){
+        difference(){
+            circle(post_radius,$fn = fn);
+            circle(post_hole_radius,$fn = fn);
+        }
+    }
+    translate([post_distance_apart,0,0]){
+        difference(){
+            circle(post_radius, $fn = fn);
+            circle(post_hole_radius, $fn = fn);
+        }
+       
+    }
+
+    square([center_bridge_length,center_bridge_width],center = true);
+}
+// the basic 2D shape that the helix is extruded upon.
+union(){
+    difference(){
+        linear_extrude(height = helix_height, twist = helix_twists, slices =    helix_slices, scale = helix_scale){
+            helix_basic();
+        }
+        for (a = [ spacer_start : spacer_increment_distance : spacer_increment_height])
+            translate([0, 0, a]) {
+                linear_extrude(height = spacer_height, center = true){
+                    circle(spacer_radius, $fn = fn);
+                }
+            }
+    }
+ rotate([0,0,helix_twists+90+3*post_radius-0.5]){
+    translate([post_distance_apart,0,helix_height])scale([1,1,0.25])sphere(r = post_radius, $fn = fn);
+    translate([-post_distance_apart,0,helix_height])scale([1,1,0.25])sphere(r = post_radius, $fn = fn);
+ }
+}
+translate([0,0,-base_platform_height/2])difference(){
+    hull(){ // base
+        translate([0,0,base_platform_height/3])cylinder(r = base_platform_radius-(base_platform_height/2), h = base_platform_height/3, center = true, $fn = base_platform_shape);  
+        translate([0,0,-base_platform_height/4])cylinder(r = base_platform_radius, h = base_platform_height/2, center = true, $fn = base_platform_shape);          
+    }
+    translate([post_distance_apart,0,(base_platform_height/2)-(base_platform_height/4)])cylinder(r1 = post_hole_radius*2, r2 = post_hole_radius, h = base_platform_height/2+0.2, center = true, $fn = fn);  
+    translate([-post_distance_apart,0,(base_platform_height/2)-(base_platform_height/4)])cylinder(r1 = post_hole_radius*2, r2 = post_hole_radius, h = base_platform_height/2+0.2, center = true, $fn = fn);  
+    translate([0,0,-base_platform_height/2+0.01])cylinder(r = base_platform_inner_radius, h = base_platform_height, center = true, $fn = base_platform_shape);  
+    translate([0,0,-base_platform_height/2+1-0.01])cylinder(r = base_platform_inner_radius+2, h = 2, center = true, $fn = base_platform_shape);
+    // todo: add cutout through base for filament-leds, because they don't reach to the bottom!
+    // usb-module:
+    translate([0,base_platform_radius*0.75,- base_platform_height/6])rotate([90,0,0])cube([usb_rectangular_width,usb_height,15],center=true); //cylinder(d = usb_height, h = 10, center = true, $fn = fn);
+    translate([usb_mount_hole_spacing/2,base_platform_radius*0.75,- base_platform_height/6])rotate([90,0,0])cylinder(d = usb_mount_hole_dia, h = 10, center = true, $fn = base_platform_shape);
+    translate([-usb_mount_hole_spacing/2,base_platform_radius*0.75,- base_platform_height/6])rotate([90,0,0])cylinder(d = usb_mount_hole_dia, h = 10, center = true, $fn = base_platform_shape);
+}
+// baseplate with pry-hole:
+translate([0,0,-15])difference(){
+    translate([0,0,(-base_platform_height/2+1-0.01)])cylinder(r = base_platform_inner_radius+2, h = 2-0.2, center = true, $fn = base_platform_shape);
+    for (x = [ base_platform_radius*0.75 , -base_platform_radius*0.75 ])translate([0,x,(-base_platform_height/2+1-0.01)])cube([10,2,2+0.01], center=true);
+}

openscad/foreign/parametric-helix_haystack-mod/helix_haystack_text.scad

@@ -0,0 +1,134 @@
+// number of fragments | a higher fragment count will result in slower render times '20' is sufficient.
+fn = 30; // [0:100]
+//  "sugar phosphate backbones" | part of helix_base module | if adjusted also consider adjusting 'post_distance_apart' or 'center_bridge_length'.
+post_radius = 5; // [0:500]
+post_hole_radius = 1.75; // [0:500]
+// part of helix_base module | if adjusted also consider adjusting 'center_bridge_length'.
+post_distance_apart = 25; // [0:500]
+// "base pairs" length between "sugar phosphate backbones" | part of helix_base module | if adjusted also consider adjusting 'post_distance_apart'.
+center_bridge_length = 55; // [0:500]
+// part of helix_base module | thickness of "basepairs" in relevence to the the Y-axis of 'helix_base' before "linear_extrude" is implemented. further explanation is below.
+center_bridge_width = 1.6; // [0:0.1:500]
+// 'helix_height' adjusts the height of the linear_extruded 'helix_base' module | 'helix_height, helix_twists, helix_twists' all work hand in hand and should be experimented to fully understand the linear_extrude's nature.
+helix_height = 165; // [0:500]
+// 'helix_twists' adjusts the degree of twist in the linear_extruded 'helix_base' module.
+helix_twists = 400; // [0:3600]
+// 'helix_slices' adjusts the number of slices used in the linear_extruded 'helix_base' module | more slices = higher resolution and longer render times, less slices = the contrary | 200 is sufficient.
+helix_slices = 600; // [0:500]
+// this is fun try changing from 0-3 to scale 'helix_base' as it reaches its specified height in 'helix_height' | '1' = 1to1 scale, 0 = 1to0, 2 = 1to2 scale and so on in sequential order.
+helix_scale = 1; // [0:10]
+// the radius of the differenced circle that creates the spaces between each "base pair" | if adjusted you may also want to adjust 'center_bridge_length' and 'post_distance_apart'.
+spacer_radius = 20.25; // [0:500]
+// the height of the differenced circle changing this will result in a visual thickness change, in the Z-axis, of each "basepair".
+spacer_height = 6; // [0:550]
+// the point in the Z-axis at which the spacers will start appearing | 'spacer_start, spacer_increment_distance, and spacer_increment_height all work together to create the "base pairs/ bridges" that appear between each "sugar phosphate backbone/post".
+spacer_start = 0; // [0:550]
+// the distance between each spacer changing this will result in a visual thickness change, in the Z-axis, of each "basepair".
+spacer_increment_distance = 9; // [0:500]
+// the height to which the spacers ascend to and then stop being produced.
+spacer_increment_height = helix_height; // [0:500]
+// the radius of the circle where the standing platform is located at the base of the helix.
+base_platform_radius = 52.5; // [0:500]
+base_platform_inner_radius = 47.5;
+// the height of the above said platform.
+base_platform_height = 20; // [0:100]
+// the controls the number of sides the platform has, 0 defaults to 'fn'.  3, 4, 5, 6 ...
+base_platform_shape = 6; // [0:50]
+
+usb_mount_hole_spacing = 15; // 19-(2*2) ?
+usb_mount_hole_dia = 2.0; // ?
+usb_height = 4.1;
+usb_rectangular_width = 11+1; //presumeably this is 19-4-4 = 11 plus one for wiggle room. needs testing. 
+text=true;
+textdepth=2;
+usb=false;
+
+module logo(path,scale){
+    translate([0,0,0]){
+        scale([scale,scale,1]){
+            linear_extrude(textdepth){
+                import(path,center=true);
+            }
+        }
+    }
+}
+
+module helix_basic(){
+    translate([-post_distance_apart,0,0]){
+        difference(){
+            circle(post_radius,$fn = fn);
+            if(usb){
+                circle(post_hole_radius,$fn = fn);
+            }
+        }
+    }
+    translate([post_distance_apart,0,0]){
+        difference(){
+            circle(post_radius, $fn = fn);
+            if(usb){
+                circle(post_hole_radius, $fn = fn);
+            }
+        }
+       
+    }
+
+    square([center_bridge_length,center_bridge_width],center = true);
+}
+// the basic 2D shape that the helix is extruded upon.
+union(){
+    difference(){
+        linear_extrude(height = helix_height, twist = helix_twists, slices =    helix_slices, scale = helix_scale){
+            helix_basic();
+        }
+        for (a = [ spacer_start : spacer_increment_distance : spacer_increment_height])
+            translate([0, 0, a]) {
+                linear_extrude(height = spacer_height, center = true){
+                    circle(spacer_radius, $fn = fn);
+                }
+            }
+    }
+    // elipsoids on top to cover up the led-holes:
+    rotate([0,0,helix_twists+90+2.1*post_radius-0.5]){
+        translate([post_distance_apart,0,helix_height])scale([1,1,0.25])sphere(r = post_radius, $fn = fn);
+        translate([-post_distance_apart,0,helix_height])scale([1,1,0.25])sphere(r = post_radius, $fn = fn);
+    }
+}
+translate([0,0,-base_platform_height/2])difference(){
+    hull(){ // base
+        translate([0,0,base_platform_height/3])cylinder(r = base_platform_radius-(base_platform_height/2), h = base_platform_height/3, center = true, $fn = base_platform_shape);  
+        translate([0,0,-base_platform_height/4])cylinder(r = base_platform_radius, h = base_platform_height/2, center = true, $fn = base_platform_shape);          
+    }
+    if(usb){
+        translate([post_distance_apart,0,(base_platform_height/2)-(base_platform_height/4)])cylinder(r1 = post_hole_radius*2, r2 = post_hole_radius, h = base_platform_height/2+0.2, center = true, $fn = fn);  
+        translate([-post_distance_apart,0,(base_platform_height/2)-(base_platform_height/4)])cylinder(r1 = post_hole_radius*2, r2 = post_hole_radius, h = base_platform_height/2+0.2, center = true, $fn = fn);  
+    
+    //bottom cutout narrow:
+    translate([0,0,-base_platform_height/2+0.01])cylinder(r = base_platform_inner_radius, h = base_platform_height, center = true, $fn = base_platform_shape);  
+    //bottom cutout wide:
+    translate([0,0,-base_platform_height/2+1-0.01])cylinder(r = base_platform_inner_radius+2, h = 2, center = true, $fn = base_platform_shape);
+    // only draw usb-module-cutouts if desired:
+    
+        // usb-module:
+        translate([0,base_platform_radius*0.75,- base_platform_height/6])rotate([90,0,0])cube([usb_rectangular_width,usb_height,15],center=true); //cylinder(d = usb_height, h = 10, center = true, $fn = fn);
+        // usb-screw-holes:
+        translate([usb_mount_hole_spacing/2,base_platform_radius*0.75,- base_platform_height/6])rotate([90,0,0])cylinder(d = usb_mount_hole_dia, h = 15, center = true, $fn = base_platform_shape);
+        translate([-usb_mount_hole_spacing/2,base_platform_radius*0.75,- base_platform_height/6])rotate([90,0,0])cylinder(d = usb_mount_hole_dia, h = 15, center = true, $fn = base_platform_shape);
+    }
+    if(text){
+        rotate([49,0,0]){
+            translate([0,-23.25,32.35]){
+                #logo("haystack_logo_final.svg",0.2);
+            }
+        }
+    }
+}
+// baseplate with pry-hole:
+if(usb){
+    translate([0,0,-15]){
+        difference(){
+            translate([0,0,(-base_platform_height/2+1-0.01)])cylinder(r = base_platform_inner_radius+2, h = 2-0.2, center = true, $fn = base_platform_shape);
+            for (x = [ base_platform_radius*0.80 , -base_platform_radius*0.80 ])translate([0,x,(-base_platform_height/2+1-0.01)])cube([10,2,2+0.01], center=true);
+        }
+    }
+}
+

openscad/own/2d-to-3d-scad/gonicus/gonicus.scad

@@ -3,23 +3,23 @@
 h=3;  //height
 w=20;  //width
 l=75; //lenght
-hd=7.5;  //hole_dia
+hd=w/2.25;  //hole_dia
 emd=1.25;  // embossing depth
+q=0.01;  // minimal value to avoid visual glitches
 $fn=100; //resolution
 // ###############
 difference(){ 
-    translate([0,0,h/2*1]){
+    translate([0,0,h/2]){
         hull(){
-            translate([+(l-w)/2,0,0])cylinder(h=h,r=w/2,center=true,$fn=100);
+            for(x=[(l-w)/2,-(l-w)/2]){
-            translate([-(l-w)/2,0,0])cylinder(h=h,r=w/2,center=true,$fn=100);
+                translate([x,0,0])cylinder(h=h,r=w/2,center=true); // body
+    }}}
+    translate([-(l/2)+(w/3),0,h/2]){
+        cylinder(h=h+q,r=hd/2,center=true); // keychain-hole
         }
-    }
     translate([w/4,0,h-emd]){
-        scale([0.3,0.3,1]){
+        scale([0.4,0.4,1]){
-            linear_extrude(height = h){
+            linear_extrude(height = emd+q){
-                import("src/GONICUS-Logo_2022_logo-only.svg",center=true);
+                import("src/GONICUS-Logo_2022_logo-only-new.svg",center=true); // logo
-            }
+    }}}
-        }
-    }
-    translate([-(l/2)+(w/3),0,h/2])cylinder(h=h+0.1,r=hd/2,center=true);
 }

openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only-new.svg

@@ -0,0 +1,158 @@
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+  </g>
+</svg>

openscad/own/2d-to-3d-scad/gonicus/src/GONICUS-Logo_2022_logo-only.svg

@@ -1,21 +1,42 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:xlink="http://www.w3.org/1999/xlink"
    xml:space="preserve"
    style="enable-background:new 0 0 841.89 595.28;"
    viewBox="0 0 841.89 595.28"
    y="0px"
    x="0px"
    id="Ebene_1"
-   version="1.1"><metadata
+   version="1.1"
+   sodipodi:docname="GONICUS-Logo_2022_logo-only.svg"
+   inkscape:version="1.4.2 (ebf0e940d0, 2025-05-08)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/"><sodipodi:namedview
+   id="namedview1"
+   pagecolor="#ffffff"
+   bordercolor="#000000"
+   borderopacity="0.25"
+   inkscape:showpageshadow="2"
+   inkscape:pageopacity="0.0"
+   inkscape:pagecheckerboard="0"
+   inkscape:deskcolor="#d1d1d1"
+   inkscape:zoom="1.9537024"
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+   inkscape:cy="297.64001"
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+   inkscape:window-height="1372"
+   inkscape:window-x="0"
+   inkscape:window-y="0"
+   inkscape:window-maximized="1"
+   inkscape:current-layer="Ebene_1" /><metadata
    id="metadata33"><rdf:RDF><cc:Work
        rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
-         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title></dc:title></cc:Work></rdf:RDF></metadata><defs
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title /></cc:Work></rdf:RDF></metadata><defs
    id="defs31">
 	<defs
    id="defs7">
@@ -49,36 +70,38 @@
 </style>
 
 <g
-   id="g861"><path
+   id="g861"
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      class="st0"
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-     id="path4" /><path
+     id="path4"
-     style="fill:#213a8f"
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      id="path12"
      clip-path="url(#SVGID_2_)"
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      class="st1" /><path
-     style="fill:#213a8f"
+     style="fill:#000000"
      id="path20"
      clip-path="url(#SVGID_2_)"
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openscad/own/hex-rackpanels/hexpanel.scad

@@ -36,10 +36,10 @@ module panel(){
             translate([0,0,-q])cylinder(d=magnet_dia,h=magnet_h);
         }
         if (magnet_count>1){
-            for (m=[1:360/magnet_count:359]){
+            for (m=[0:360/magnet_count:360]){
                 rotate([0,0,m]){
                     translate([panel_dia/4,0,-q]){
-                        cylinder(d=magnet_dia,h=magnet_h);
+                        #cylinder(d=magnet_dia,h=magnet_h);
                     }
                 }
             }

openscad/own/kitt-matrix/src/kitt-matrix.scad

@@ -0,0 +1,133 @@
+/* 
+Case for LED-Matrix of the KITT-Voice-Assistant
+by zeus - 2024-08-17 - CC-BY-SA-NC-4.0
+https://git.kostianix.de/zeus/3d-stuff/src/branch/main/openscad/own/kitt-matrix
+*/
+
+// ##########################################
+// VARS:
+$fn=25;         // overall render quality
+q=0.01;         // only used to get rid of visual glitches. can be set to 0 for productive exports.
+mt=10;           // material thickness, NOT overall thickness in case of a rim!
+pt=3;           // panel thickness
+mt_inner=2;     // constrained wall thickness for inside-walls between LEDs
+panel_w=68;     // overall width of led panel
+panel_h=67;     // same for height
+panel_t_pcb=1.5;    // height of PCB
+panel_t_led=1.5;    // height of the soldered LED modules
+panel_t=(panel_t_pcb+panel_t_led);    // overall thickness of the PCB+LEDs (~50:50)
+led_spacing_x=8.5;  // center-to-center spacing from LED to next LED, in width/x-axis-direction
+led_spacing_y=8.3;    // same for height/Y-axis
+led_w=7;
+led_h=7;
+led_num_x=8;
+led_num_y=8;
+offset_left=((panel_w-((led_num_x*led_w)+((led_num_x-1)*(led_spacing_x-led_w))))/2); // offset on one side (effectively "panel_w-e2e_x/2", but properly calculated)
+offset_top= ((panel_h-((led_num_y*led_h)+((led_num_y-1)*(led_spacing_y-led_h))))/2); // offset on one side (effectively "panel_h-e2e_y/2", but properly calculated)
+
+e2e_x=64;       // width/x-axis edge-to-edge-distance from beginning of first to end of last LED (LED-Case, not soldering-points). for reference only
+e2e_y=61.75;    // same for height/Y-axis
+
+conhole_d=4;    // connection hole between frame parts 
+conhole_taper_h=2;    // is this needed?
+conhole_i_d=2.75;   // should fit M3
+conhole_offset=3.5; //offset from outer perimeter
+cutout_w=10;
+mnthole_d=5;
+//echo("offset left is ",offset_left);
+//echo("offset top is ",offset_top);
+
+
+// ##########################################
+
+// MODULES:
+
+module panel(){
+    // PCB:
+    cube([panel_w,panel_h,panel_t_pcb+q],center=true);
+    // overcomplicated "for" to determine the exact positions of the LEDs on the board.
+    // The LEDs themselves are not needed for rendering
+    // LEDs:
+/*
+        for (num_x=[0:led_spacing_x:led_spacing_x*(led_num_x-1)],num_y=[0:led_spacing_y:led_spacing_y*(led_num_y-1)])
+        translate([-(panel_w/2-led_w/2)+offset_left+num_x,-(panel_h/2-led_h/2)+offset_top+num_y,panel_t_led])color( "#ff0000" )cube([led_w,led_h,panel_t_led],center=true);
+*/
+    // "lightpipes":
+    // left column (span 2 wide each)
+    for (num_x=[0:led_spacing_x:led_spacing_x*(led_num_x-1)],num_y=[0:led_spacing_y])
+        translate([-(panel_w/2-led_w/2)+offset_left+num_x,-(panel_h/2-led_h/2)+offset_top+num_y,panel_t_pcb+panel_t_led*1.5])color( "#00ff00" )cube([led_w,led_h,panel_t_led*4+q],center=true);      
+    // center column (span 2 wide each)
+    for (num_x=[0:led_spacing_x:led_spacing_x*(led_num_x-1)],num_y=[led_spacing_y*3:led_spacing_y*4])
+        translate([-(panel_w/2-led_w/2)+offset_left+num_x,-(panel_h/2-led_h/2)+offset_top+num_y,panel_t_pcb+panel_t_led*1.5])color( "#00ff00" )cube([led_w,led_h,panel_t_led*4+q],center=true);  
+    // right column (span 2 wide each)
+    for (num_x=[0:led_spacing_x:led_spacing_x*(led_num_x-1)],num_y=[led_spacing_y*6:led_spacing_y*7])
+        translate([-(panel_w/2-led_w/2)+offset_left+num_x,-(panel_h/2-led_h/2)+offset_top+num_y,panel_t_pcb+panel_t_led*1.5])color( "#00ff00" )cube([led_w,led_h,panel_t_led*4+q],center=true);
+    // smaller inbetween columns (span 1 wide each)
+    for (num_x=[0:led_spacing_x:led_spacing_x*(led_num_x-1)],num_y=[led_spacing_y*2,led_spacing_y*5])
+        translate([-(panel_w/2-led_w/2)+offset_left+num_x,-(panel_h/2-led_h/2)+offset_top+num_y,panel_t_pcb+panel_t_led*1.5])color( "#00ff00" )cube([led_w,led_h,panel_t_led*4+q],center=true);
+
+}
+module panelholder(){
+    translate([0,0,panel_t_pcb])difference(){
+        cube([panel_w+mt,panel_h+mt,(panel_t+(panel_t_pcb+panel_t_led*2))],center=true);
+        translate([0,0,-(panel_t_pcb+panel_t_led)])
+            panel();
+        //translate([0,0,-panel_t_led*3])cube([panel_w,panel_h,(panel_t+(panel_t_led*3))],center=true);
+        // screwholes for M3
+        for (
+            pos_x=[-(panel_w+mt)/2+conhole_offset+mt/2,
+                    (panel_w+mt)/2-conhole_offset-mt/2],
+            pos_y=[-(panel_h+mt)/2+conhole_offset,
+                    (panel_h+mt)/2-conhole_offset]
+        )
+            translate([pos_x,pos_y,-1])
+                cylinder(d=conhole_i_d,h=(panel_t+(panel_t_led*3)+q),center=true);
+    }
+}
+
+module panelframe(){
+    translate([0,0,panel_t_pcb])difference(){
+        cube([panel_w+mt,panel_h+mt,(panel_t+(panel_t_led*8))],center=true);
+        translate([0,0,pt])cube([panel_w-(offset_left*2)-q,panel_h-(offset_top*2)-q,(panel_t+(panel_t_led*8))+q],center=true);
+        // mounting-holes for sandwich-ing
+        for (
+            pos_x=[-(panel_w+mt)/2+conhole_offset+mt/2,
+                    (panel_w+mt)/2-conhole_offset-mt/2],
+            pos_y=[-(panel_h+mt)/2+conhole_offset,
+                    (panel_h+mt)/2-conhole_offset])
+            {
+                translate([pos_x,pos_y,0])cylinder(d=conhole_d,h=(panel_t+(panel_t_led*8))+q,center=true);
+                translate([pos_x,pos_y,-(panel_t+(panel_t_led*8))/2+conhole_taper_h/2])cylinder(d2=conhole_d,d1=conhole_d*1.5,h=conhole_taper_h+q,center=true);
+            }
+        // keyholes for mounting-screws.
+        // mirror([90,0,0])
+        for (
+            pos_x= [-(panel_h/2-mnthole_d*2)],
+            pos_x2=[-(panel_h/2-mnthole_d*5)],
+            pos_y= [-(panel_h/2-mnthole_d*2),0,(panel_h/2-mnthole_d*2)]) 
+            {
+                hull(){
+                    translate([pos_x,pos_y,-mt/2])cylinder(d=mnthole_d,h=mt+q,center=true);
+                    translate([pos_x2,pos_y,-mt/2])cylinder(d=mnthole_d,h=mt+q,center=true);
+                }
+                translate([pos_x2,pos_y,-mt/2])cylinder(d=mnthole_d*2,h=mt+q,center=true);
+            }
+            
+    }
+}
+// ##########################################
+
+// DRAW MODEL:
+difference(){
+    union(){
+        panelholder();
+        translate([0,0,-(panel_t+(panel_t_led*3))-5])panelframe();
+        translate([panel_h+mt*2,0,0]){
+            panelholder();
+            translate([0,0,-(panel_t+(panel_t_led*3))-5])panelframe();
+        }
+    }
+    for (x=[-10:1:10])
+    translate([panel_h,x,-12.5])rotate([0,90,0])rotate([0,0,90])cylinder(h=(2.5*panel_h),d=6,center=true,$fn=6);
+    translate([panel_h/2+mt,0,-5])cube([mt*2-1.5,100,30],center=true);
+}