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diff --git a/01_3D-Druck/openscad/phasen-ring.scad b/01_3D-Druck/openscad/phasen-ring.scad
index 12a79f5..c8a554c 100644
--- a/01_3D-Druck/openscad/phasen-ring.scad
+++ b/01_3D-Druck/openscad/phasen-ring.scad
@@ -5,50 +5,129 @@
 // der linearen Puck-Bahn bilden (Design-Segment = Start vor dem ersten Puck).
 // KEINE Magnete: Segmente werden lose aneinandergelegt.
 //
-// Diese Datei ist die GEMEINSAME GEOMETRIE. Druckfertige Einzelteile sind:
-//   phasen-ring-design.scad · -transition.scad · -operation.scad
-//   -support.scad · -review.scad      (rufen nur phase_segment(idx) auf)
-// Direkt geoeffnet zeigt diese Datei den kompletten Ring als VORSCHAU.
+// Gravur je Segment: ICON (oben) + Phasenname (darunter). Icons als gefuellte
+// Silhouetten (lesen sich graviert besser als Linien), alle etwa gleich gross.
+//
+// Druckfertige Einzelteile: phasen-ring-design/-transition/-operation/-support/
+// -review.scad (rufen nur phase_segment(idx) auf). Direkt geoeffnet = ganzer Ring.
 
-// --- Phasendaten (Funktionen -> per `use` importierbar) ---------------------
+// --- Phasendaten ------------------------------------------------------------
 function ph_name(i) = ["DESIGN","TRANSITION","OPERATION","SUPPORT","REVIEW"][i];
-// Phasenfarben (nur Vorschau; im Druck = Filament)
 function ph_col(i)  = [[0.16,0.44,0.69],[0.88,0.54,0.12],[0.23,0.62,0.29],
                        [0.12,0.62,0.62],[0.49,0.31,0.64]][i];
 
 // --- Geometrie-Helfer -------------------------------------------------------
 module ring_sector(a, r_out, r_in, seg_h) {
-    // Ringsegment ueber Winkel a, Bisektor zeigt nach +Y (oben)
-    a0 = 90 - a/2;
-    a1 = 90 + a/2;
-    big = r_out + 10;
+    a0 = 90 - a/2; a1 = 90 + a/2; big = r_out + 10;
     intersection() {
-        difference() {                       // Annulus
+        difference() {
             cylinder(r = r_out, h = seg_h);
             translate([0,0,-0.5]) cylinder(r = r_in, h = seg_h + 1);
         }
-        linear_extrude(seg_h)                // Tortenstueck
-            polygon([[0,0],
-                     [big*cos(a0), big*sin(a0)],
-                     [big*cos(90), big*1.2],
-                     [big*cos(a1), big*sin(a1)]]);
+        linear_extrude(seg_h)
+            polygon([[0,0],[big*cos(a0), big*sin(a0)],
+                     [big*cos(90), big*1.2],[big*cos(a1), big*sin(a1)]]);
     }
 }
 
-// --- ein Segment (alle Masse als Parameter mit Defaults) --------------------
+// ============================ ICONS (2D, gefuellt) =========================
+// jeweils zentriert um (0,0), ~ +/- 8.5 mm Bauraum.
+
+module ic_design() {            // Dokument/Plan + quer liegender Bleistift
+    difference() {
+        offset(0.9) offset(-0.9) translate([-4.5,-8]) square([9,16]); // abger. Hochformat
+        for (yy = [4.3, 1.8, -0.7, -3.2, -5.7])                       // Linien (Stege)
+            translate([-3, yy]) square([6, 1.0]);
+    }
+    // Bleistift diagonal, ragt unten-links + oben-rechts heraus -> klar erkennbar
+    rotate(38) translate([3.5, 0]) union() {
+        translate([-1, -9]) square([2, 16]);                 // Schaft
+        translate([0, 7])  polygon([[-1,0],[1,0],[0,2.6]]);  // Spitze
+        translate([-1,-9]) square([2, 1.6]);                 // Radierer-Ende
+    }
+}
+
+module ic_rocket() {           // Rakete + Schub
+    difference() {
+        union() {
+            hull() { translate([0,5]) circle(r=2.8,$fn=28);
+                     translate([0,-2.5]) circle(r=2.8,$fn=28); }
+            polygon([[-2.8,5],[2.8,5],[0,9]]);              // Nase
+            polygon([[-2.8,-0.5],[-5.6,-4.5],[-2.8,-3.5]]); // Finne links
+            polygon([[ 2.8,-0.5],[ 5.6,-4.5],[ 2.8,-3.5]]); // Finne rechts
+            polygon([[-1.8,-2.8],[1.8,-2.8],[0,-7.5]]);     // Flamme
+        }
+        translate([0,3.6]) circle(r=1.3,$fn=20);            // Fenster
+    }
+}
+
+module gear(R, teeth, hole) {
+    difference() {
+        union() {
+            circle(r = R, $fn = 44);
+            for (i = [0:teeth-1])
+                rotate(360/teeth*i) translate([R,0])
+                    square([R*0.5, R*0.55], center = true);
+        }
+        circle(r = hole, $fn = 28);
+    }
+}
+module ic_gears() {            // zwei Zahnraeder
+    translate([-2, 1.5])  gear(5.2, 8, 2.0);
+    translate([4.5,-4])   gear(3.0, 7, 1.2);
+}
+
+module ic_headset() {         // Headset
+    union() {
+        difference() {                                   // Buegel (oberer Halbring)
+            circle(r=7.2,$fn=44); circle(r=5.4,$fn=44);
+            translate([-9,-9]) square([18,9]);
+        }
+        translate([-6.3,-1.5]) square([3.4,5.5], center=true); // Ohr links
+        translate([ 6.3,-1.5]) square([3.4,5.5], center=true); // Ohr rechts
+        hull() { translate([6.3,-4]) circle(r=0.8,$fn=16);     // Mikro-Arm
+                 translate([1.8,-6.5]) circle(r=0.8,$fn=16); }
+        translate([1.8,-6.5]) circle(r=1.4,$fn=20);            // Mikrofon
+    }
+}
+
+module ic_review() {          // Lupe mit Haken
+    union() {
+        difference() { circle(r=5.6,$fn=44); circle(r=3.9,$fn=44); } // Glas-Ring
+        rotate(-45) translate([4.8,-1.1]) square([5.5,2.2]);         // Griff
+        // Haken im Glas
+        hull(){ translate([-2,0.2]) circle(r=0.7,$fn=16);
+                translate([-0.6,-1.3]) circle(r=0.7,$fn=16); }
+        hull(){ translate([-0.6,-1.3]) circle(r=0.7,$fn=16);
+                translate([2.2,2]) circle(r=0.7,$fn=16); }
+    }
+}
+
+// per-Icon-Skalierung -> alle optisch etwa gleich gross
+module icon(i) {
+    if      (i==0) scale(0.92) ic_design();
+    else if (i==1) scale(1.15) ic_rocket();
+    else if (i==2) scale(1.12) ic_gears();
+    else if (i==3) scale(1.08) ic_headset();
+    else           scale(1.08) ic_review();
+}
+
+// --- ein Segment ------------------------------------------------------------
 module phase_segment(idx,
                      r_out = 90, r_in = 42, seg_h = 6, seg_ang = 72, gap_deg = 1.2,
-                     eng_depth = 1.0, name_size = 9) {
+                     eng_depth = 1.0, name_size = 8, icon_size = 1.0,
+                     icon_y = 75, name_y = 54) {
     $fn = 96;
     color(ph_col(idx))
     difference() {
         ring_sector(seg_ang - gap_deg, r_out, r_in, seg_h);
-        // Phasenname, mittig im Band (Radius ~66)
-        translate([0, (r_in + r_out)/2, seg_h - eng_depth])
-            linear_extrude(eng_depth + 0.1)
-                text(ph_name(idx), size=name_size, halign="center", valign="center");
+        translate([0,0,seg_h - eng_depth]) linear_extrude(eng_depth + 0.1) {
+            translate([0, icon_y]) scale(icon_size) icon(idx);
+            translate([0, name_y]) text(ph_name(idx), size=name_size,
+                                        halign="center", valign="center");
+        }
     }
 }
 
-// --- VORSCHAU (nur wenn diese Datei direkt geoeffnet wird; bei `use` ignoriert)
+// --- VORSCHAU (nur direkt geoeffnet; bei `use` ignoriert) -------------------
 for (i = [0:4]) rotate([0,0, -i*72]) phase_segment(i);