diff --git a/rack-mount/patch-panel/entry.scad b/rack-mount/patch-panel/entry.scad
index 5750caa..b164dce 100644
--- a/rack-mount/patch-panel/entry.scad
+++ b/rack-mount/patch-panel/entry.scad
@@ -14,13 +14,14 @@ module patchPanelSystem (
 
 numSlots = 8,
 plateThickness = 3,
-keystoneSpacing = 19
+keystoneSpacing = 19,
+center = false
 
 // end config //////////////////////////////////////////////////////////////////////////////////////////////////////////
 
 ) {
   mirror(v = [0, 0, 1])
-    patchPanel(slots = numSlots);
+    patchPanel(slots = numSlots, center=center);
 }
 
-patchPanelSystem();
\ No newline at end of file
+patchPanelSystem();
diff --git a/rack-mount/patch-panel/patchPanel.scad b/rack-mount/patch-panel/patchPanel.scad
index 1ab7d85..6932006 100644
--- a/rack-mount/patch-panel/patchPanel.scad
+++ b/rack-mount/patch-panel/patchPanel.scad
@@ -8,15 +8,21 @@ use <../plateBase.scad>
   Please also make sure that the correct rack frame preset is set in rackFrame.scad.
 */
 
-module patchPanel (slots=8, plateThickness=3, keystoneSpacing=19) {
+module patchPanel (slots=8, plateThickness=3, keystoneSpacing=19, center=false) {
     difference() {
         supportPlateThickness = 5.9;
         supportPlateHeight = 29;
         supportPlateEdgeSpacing = 3;
         supportPlateWidth = slots * keystoneSpacing + supportPlateEdgeSpacing;
+        supportPlateMinPadding = railScrewHoleToInnerEdge+4;
 
-        leftRailScrewToSupportDx = railScrewHoleToInnerEdge+4;
+        // TODO: these values should belong somewhere closer to plateBase.scad
         railScrewToEdge = 4.5;
+        plateLength = rackMountScrewWidth + 2*railScrewToEdge;
+
+        leftRailScrewToSupportDx = center
+            ? (plateLength-(supportPlateWidth+supportPlateMinPadding))/2
+            : supportPlateMinPadding;
 
         union() {
             plateBase(U = 2, plateThickness = plateThickness, screwType = mainRailScrewType,  screwToXEdge=railScrewToEdge, screwToYEdge=railScrewToEdge, filletR = 2);
@@ -24,6 +30,7 @@ module patchPanel (slots=8, plateThickness=3, keystoneSpacing=19) {
             cube(size = [supportPlateWidth, supportPlateHeight, supportPlateThickness]);
         }
 
+        render() 
         union() {
             for (i = [0:slots-1]) {
                 translate(v = [leftRailScrewToSupportDx+supportPlateEdgeSpacing + i*keystoneSpacing, 0, eps])
@@ -32,4 +39,4 @@ module patchPanel (slots=8, plateThickness=3, keystoneSpacing=19) {
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/rack-mount/plateBase.scad b/rack-mount/plateBase.scad
index 6209349..fef3c10 100644
--- a/rack-mount/plateBase.scad
+++ b/rack-mount/plateBase.scad
@@ -31,4 +31,4 @@ module plateBase(U, plateThickness, screwType, screwToXEdge=4.5, screwToYEdge=4.
         }
     }
 
-}
\ No newline at end of file
+}