diff --git a/svelte-app/src/lib/canvas/collision.ts b/svelte-app/src/lib/canvas/collision.ts
index 08cbfea..fdede1e 100644
--- a/svelte-app/src/lib/canvas/collision.ts
+++ b/svelte-app/src/lib/canvas/collision.ts
@@ -405,7 +405,7 @@ function getEpcCollisionQuads(
     ox + last.x, oy + last.y,
     last.x - prev.x, last.y - prev.y,
     EPC_CONFIG.rightBox.w, EPC_CONFIG.rightBox.h,
-    'left'
+    'right'
   );
   if (rbQ.length === 4) quads.push(rbQ);
 
diff --git a/svelte-app/src/lib/canvas/interactions.ts b/svelte-app/src/lib/canvas/interactions.ts
index d61fd61..82231d9 100644
--- a/svelte-app/src/lib/canvas/interactions.ts
+++ b/svelte-app/src/lib/canvas/interactions.ts
@@ -361,7 +361,7 @@ function recalcEpcBounds(sym: typeof layout.symbols[0]) {
   const last = wps[wps.length - 1];
   const prev = wps[wps.length - 2];
   const rbDir = { x: last.x - prev.x, y: last.y - prev.y };
-  const rbCorners = orientedBoxCorners(last.x, last.y, rbDir.x, rbDir.y, EPC_CONFIG.rightBox.w, EPC_CONFIG.rightBox.h, 'left');
+  const rbCorners = orientedBoxCorners(last.x, last.y, rbDir.x, rbDir.y, EPC_CONFIG.rightBox.w, EPC_CONFIG.rightBox.h, 'right');
   for (const [bx, by] of rbCorners) {
     minX = Math.min(minX, bx); minY = Math.min(minY, by);
     maxX = Math.max(maxX, bx); maxY = Math.max(maxY, by);
diff --git a/svelte-app/src/lib/canvas/render-theme.ts b/svelte-app/src/lib/canvas/render-theme.ts
index 731e428..bca8f27 100644
--- a/svelte-app/src/lib/canvas/render-theme.ts
+++ b/svelte-app/src/lib/canvas/render-theme.ts
@@ -55,7 +55,7 @@ export const THEME = {
     lineColor: '#000000',
     rightBoxFill: '#aaaaaa',
     rightBoxStroke: '#000000',
-    rightBoxStrokeWidth: 0.3,
+    rightBoxStrokeWidth: 1.0,
   },
   induction: {
     fillColor: '#000000',
diff --git a/svelte-app/src/lib/canvas/renderer.ts b/svelte-app/src/lib/canvas/renderer.ts
index eeff2af..8659018 100644
--- a/svelte-app/src/lib/canvas/renderer.ts
+++ b/svelte-app/src/lib/canvas/renderer.ts
@@ -186,8 +186,8 @@ function drawEpcSymbol(ctx: CanvasRenderingContext2D, sym: PlacedSymbol) {
     ctx.fillStyle = THEME.epcBody.rightBoxFill;
     ctx.strokeStyle = THEME.epcBody.rightBoxStroke;
     ctx.lineWidth = THEME.epcBody.rightBoxStrokeWidth;
-    ctx.fillRect(0, -rb.h / 2, rb.w, rb.h);
-    ctx.strokeRect(0, -rb.h / 2, rb.w, rb.h);
+    ctx.fillRect(-rb.w, -rb.h / 2, rb.w, rb.h);
+    ctx.strokeRect(-rb.w, -rb.h / 2, rb.w, rb.h);
     ctx.restore();
   }
 }
@@ -270,7 +270,7 @@ function traceEpcOutlinePath(ctx: CanvasRenderingContext2D, sym: PlacedSymbol, p
   ctx.translate(plx, ply);
   ctx.rotate(rAngle);
   ctx.beginPath();
-  ctx.rect(-pad, -rb.h / 2 - pad, rb.w + pad * 2, rb.h + pad * 2);
+  ctx.rect(-rb.w - pad, -rb.h / 2 - pad, rb.w + pad * 2, rb.h + pad * 2);
   ctx.stroke();
   ctx.restore();
 }
diff --git a/svelte-app/src/lib/symbol-config.ts b/svelte-app/src/lib/symbol-config.ts
index 31435e2..394514e 100644
--- a/svelte-app/src/lib/symbol-config.ts
+++ b/svelte-app/src/lib/symbol-config.ts
@@ -4,7 +4,7 @@ export const EPC_CONFIG = {
   iconFile: '/symbols/epc_icon.svg',
   leftBox: { x: 0, y: 0, w: 26, h: 20 },
   rightBox: { w: 10, h: 20 },
-  lineWidth: 0.4,
+  lineWidth: 1.5,
   defaultWaypoints: [
     { x: 26, y: 10 },  // exit from left box center-right
     { x: 57, y: 10 },  // entry to right box center-left