From 58a204e128e7acbad710cd9264c40cb01150d357 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 14 Apr 2020 01:19:10 +0100
Subject: [PATCH] camera-mount: break out from mic-camera-adapter: module (nfc)

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 camera-mount.scad       | 20 ++++++++++++++++++++
 mic-camera-adapter.scad | 17 +----------------
 2 files changed, 21 insertions(+), 16 deletions(-)

diff --git a/camera-mount.scad b/camera-mount.scad
index d65b08d..10d2adc 100644
--- a/camera-mount.scad
+++ b/camera-mount.scad
@@ -1,5 +1,7 @@
 // -*- C -*-
 
+include <threads.scad>
+
 inch = 25.4;
 
 negative_dia = inch * 1/4. + 0.375;
@@ -9,3 +11,21 @@ negative_tpi = 20;
 negative_pitch = inch/negative_tpi;
 negative_chamfer = negative_pitch/2;
 
+module CameraMountThread(){
+  translate([0,0, midsection]) {
+    english_thread(diameter=negative_dia/inch,
+		   threads_per_inch=negative_tpi,
+		   leadin=0, internal=true, test=$test,
+		   length= (negative_l + inch/19) / inch);
+    translate([0,0, negative_l]) {
+      hull(){
+	translate([0,0, negative_chamfer])
+	  cylinder(r= negative_dia/2 + negative_chamfer*2,
+		   h=1);
+	mirror([0,0,1])
+	  cylinder(r= negative_dia/2 - negative_chamfer*2,
+		   h= negative_chamfer*3);
+      }
+    }
+  }
+}
diff --git a/mic-camera-adapter.scad b/mic-camera-adapter.scad
index 0fdd26c..416b591 100644
--- a/mic-camera-adapter.scad
+++ b/mic-camera-adapter.scad
@@ -43,22 +43,7 @@ module Adapter(){
 	  }
 	}
       }
-      translate([0,0, midsection]) {
-	english_thread(diameter=negative_dia/inch,
-		       threads_per_inch=negative_tpi,
-		       leadin=0, internal=true, test=$test,
-		       length= (negative_l + inch/19) / inch);
-	translate([0,0, negative_l]) {
-	  hull(){
-	    translate([0,0, negative_chamfer])
-	      cylinder(r= negative_dia/2 + negative_chamfer*2,
-		       h=1);
-	    mirror([0,0,1])
-	      cylinder(r= negative_dia/2 - negative_chamfer*2,
-		       h= negative_chamfer*3);
-	  }
-	}
-      }
+      CameraMountThread();
     }
   }
 }
-- 
2.30.2