From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 8 Apr 2020 16:59:09 +0000 (+0100)
Subject: mic-camera-adapter: wip
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=2b01bb74a9cc7fdd63e8fec2dbce55d8254de852;p=reprap-play.git

mic-camera-adapter: wip

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/mic-camera-adapter.scad b/mic-camera-adapter.scad
index 1ffc71e..4258416 100644
--- a/mic-camera-adapter.scad
+++ b/mic-camera-adapter.scad
@@ -4,22 +4,31 @@ include <threads.scad>
 
 inch = 25.4;
 
-positive = inch/2;
-negative = inch/2;
-midsection = 5;
+positive_dia = inch * 3/8.;
+positive_l = inch * 1/2.;
+
+negative_dia = inch * 1/4.;
+negative_l =   10.0;
+
+negative_wall = 4;
+midsection = 4;
+
+$test = true;
+//$test = false;
 
 module Adapter(){
   translate([0,0,-0.1])
-    english_thread(diameter = 3/8., threads_per_inch=16,
-		   leadin=1,
-		   length= (positive + 0.1) / inch);
+    english_thread(diameter=positive_dia/inch, threads_per_inch=16,
+		   leadin=1, test=$test,
+		   length= (positive_l + 0.1) / inch);
   rotate([180,0,0]) {
     difference(){
-      cylinder(r=10, h=negative + midsection);
+      cylinder(r= negative_dia/2 + negative_wall,
+	       h = negative_l + midsection);
       translate([0,0, midsection])
-	english_thread(diameter = 1/2., threads_per_inch=20,
-		       leadin=1, internal=true,
-		       length=midsection+0.1);
+	english_thread(diameter=negative_dia/inch, threads_per_inch=20,
+		       leadin=0, internal=true, test=$test,
+		       length= (negative_l + inch/19) / inch);
     }
   }
 }