mic-table-clamp: toplevels

[reprap-play.git] / mic-table-clamp.scad

diff --git a/mic-table-clamp.scad b/mic-table-clamp.scad
index f145b3ac497f64a187f2028100045d95b70786e2..25da147134f669bf9e7c8856265ecada28410221 100644 (file)
--- a/mic-table-clamp.scad
+++ b/mic-table-clamp.scad
@@ -1,7 +1,9 @@
 // -*- C -*-
 
-// print on High Detail
-// but adjust infill to 50%, shell thickness to 2mm
+// print Stem and Wingnut on High Detail
+// but adjust shell thickness to 2mm
+
+// others on Standard
 
 include <threads.scad>
 include <camera-mount.scad>
@@ -9,24 +11,86 @@ include <camera-mount.scad>
 positive_dia = inch * 3/8. - 0.375;
 positive_l = inch * 1/2.;
 
-stem_l = 7;
+stem_l = 40;
 stem_dia = 12;
+stem_th = 3;
+stem_ceil = 2;
+stem_base_th  = 4;
+stem_base_dia = 25;
+stem_inner_l = 30;
+
+thread_nom = 8;
+thread_pitch = 1.25;
+thread_act = thread_nom + 0.600;
+
+wingnut_th = 5;
+wingnut_wall = 4;
+wingnut_wing_mindia = 17.0;
+wingnut_wing_xrad = 8;
+wingnut_wing_xh = 5;
+wingnut_wing_th = 3;
+
+$test= true;
+///$test= false;
+
+//$fa= 3;
+//$fs= 0.2;
+
+// calculated
 
-//base_th = 3;
-// base_dia = 
+wingnut_cnr = wingnut_wing_th/2 -0.1;
 
-module Base(){
-  translate([0,0,-0.1])
+module OurThread(l){
+  translate([0,0,-0.01])
+    metric_thread(diameter=thread_act, pitch=thread_pitch,
+                 leadin=3, internal=true,
+                 test=$test, length=l);
+}
+
+module Stem(){ ////toplevel
+  translate([0,0, stem_l -0.1])
     english_thread(diameter=positive_dia/inch, threads_per_inch=16,
                   leadin=1, test=$test,
                   length= (positive_l + 0.1) / inch);
 
-  rotate([180,0,0]) {
-    cylinder(r= stem_dia/2 * 1/(0.5 * sqrt(3)),
-            h = stem_l + 1,
-            $fn=6);
-//    translate([0,0, stem_l)
+  difference(){
+    union(){
+      cylinder(r= stem_dia/2 * 1/(0.5 * sqrt(3)),
+              h = stem_l,
+              $fn=6);
+      cylinder(r= stem_base_dia/2,
+              h = stem_base_th);
+    }
+    OurThread(stem_inner_l);
+  }
+}
+
+module Wingnut(){ ////toplevel
+  difference(){
+    union(){
+      cylinder(r= (thread_nom+wingnut_wall)/2,
+              h= wingnut_th);
+      minkowski(){
+       sphere(r= wingnut_cnr);
+       translate([0,0, wingnut_cnr*0.5])
+         linear_extrude(height= wingnut_wing_xh + wingnut_th
+                        - wingnut_cnr*1.5)
+         square([wingnut_wing_mindia + wingnut_wing_xrad*2 - wingnut_cnr*2,
+                 wingnut_wing_th - wingnut_cnr*2],
+                center=true);
+      }
+    }
+    translate([0,0, wingnut_th])
+      linear_extrude(height= wingnut_wing_xh+1)
+      square(wingnut_wing_mindia, center=true);
+    translate([0,0, wingnut_th])
+      rotate([180,0,0])
+      OurThread(wingnut_th+3);
+    mirror([0,0,1])
+      linear_extrude(height=5)
+      square(center=true, wingnut_wing_mindia*2);
   }
 }
 
-Base();
+//Wingnut();
+//Stem();