diff --git a/app/data/cfg.json b/app/data/cfg.json
index fe15db2..e7b240b 100644
--- a/app/data/cfg.json
+++ b/app/data/cfg.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.8.78",
+  "version": "1.8.79",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {
diff --git a/app/package-lock.json b/app/package-lock.json
index 8ca4b00..bcab7b5 100644
--- a/app/package-lock.json
+++ b/app/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "mcopy-app",
-  "version": "1.8.78",
+  "version": "1.8.79",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
diff --git a/app/package.json b/app/package.json
index edda42e..6431f96 100644
--- a/app/package.json
+++ b/app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mcopy-app",
-  "version": "1.8.78",
+  "version": "1.8.79",
   "description": "GUI for the mcopy small gauge film optical printer platform",
   "main": "main.js",
   "scripts": {
diff --git a/data/cfg.json b/data/cfg.json
index bab13d3..ced27b4 100644
--- a/data/cfg.json
+++ b/data/cfg.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.8.78",
+  "version": "1.8.79",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {
diff --git a/package-lock.json b/package-lock.json
index 8329aef..13f0e6f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mcopy",
-  "version": "1.8.78",
+  "version": "1.8.79",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mcopy",
-      "version": "1.8.78",
+      "version": "1.8.79",
       "license": "MIT",
       "dependencies": {
         "arduino": "file:app/lib/arduino",
diff --git a/package.json b/package.json
index 4b09052..71b0c08 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mcopy",
-  "version": "1.8.78",
+  "version": "1.8.79",
   "description": "Small gauge film optical printer platform",
   "main": "build.js",
   "directories": {
diff --git a/processing/mcopy/cfg.json b/processing/mcopy/cfg.json
index fe15db2..e7b240b 100644
--- a/processing/mcopy/cfg.json
+++ b/processing/mcopy/cfg.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.8.78",
+  "version": "1.8.79",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {
diff --git a/scad/cpc_connectors.scad b/scad/cpc_connectors.scad
index eb83959..e36975d 100644
--- a/scad/cpc_connectors.scad
+++ b/scad/cpc_connectors.scad
@@ -4,21 +4,21 @@
 
 include <./common/common.scad>;
 
-PART="9pin_socket";
+PART="9pin_plugx";
 
 FN = 120;
 
-PlugD = 15.75;
+PlugD = 16.15 - 0.6;
 PlugH = 11.65;
-PlugGuideD = 17;
+PlugGuideD = 17 - 0.6;
 PlugPinD = 3.1;
 
 PlugGuideRetraction = 1.25;
 
 PinSpacing = 3.85;
 
-SocketD = PlugD + 0.4;
-SocketGuideD = PlugGuideD + 0.5;
+SocketD = 16.15;
+SocketGuideD = 17.5;
 
 SocketOuterD = 20;
 SocketH = 10.5;