X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=brompton-computer-guard.scad;h=9620bddf500c2e470dd9592ab58d43bd3e67b27a;hb=f98a755290d00d525653a60fc405aaadc2efe984;hp=37d10e6eb9b95f725516575b71ddc9adf5b7a350;hpb=8c2692e5b50a4dd822bd8424262399539cdba871;p=reprap-play.git

diff --git a/brompton-computer-guard.scad b/brompton-computer-guard.scad
index 37d10e6..9620bdd 100644
--- a/brompton-computer-guard.scad
+++ b/brompton-computer-guard.scad
@@ -1,12 +1,12 @@
 // -*- C -*-
 
-cover_zsz = 45;
+cover_ysz = 45;
 cover_len = 70;
 
 attach_tube_dia = 18;
 
 attach_cx = -15;
-attach_cdz = -10;
+attach_cdy = -5;
 attach_w = 25;
 
 attach_inrad = 25; ///
@@ -16,41 +16,62 @@ attach_ang = 45;
 
 // calculated
 
-cover_lcircle_r = cover_zsz / (1 + 1/sqrt(2));
+cover_lcircle_r = cover_ysz / (1 + 1/sqrt(2));
 
 base_len = cover_len - cover_lcircle_r;
 
-attach_total_len =
-  attach_inrad + attach_tube_dia + attach_hole_dist + attach_hole_dia/2;
+attach_straight_len =
+  attach_inrad + attach_tube_dia + attach_hole_dist + attach_hole_dia/2
+  - attach_w / 2 + attach_hole_dist;
 
 module RearSideTemplate(){
   polygon([[0.1,0],
 	   [-base_len,0],
-	   [-base_len,-cover_zsz],
-	   [0.1,      -cover_zsz]]);
-  translate([-base_len, -cover_zsz + cover_lcircle_r])
+	   [-base_len,-cover_ysz],
+	   [0.1,      -cover_ysz]]);
+  translate([-base_len, -cover_ysz + cover_lcircle_r])
     circle(r=cover_lcircle_r);
 }
 
 module AttachTemplate(){
   hull(){
-//    polygon([[0,   0],
-//	     [-0.1, 0],
-//	     [-0.1, -cover_zsz],
-//	     [0,    -cover_zsz]]);
-    translate([attach_cx, -attach_cdz]) rotate([0,0,-attach_ang]) {
-      polygon([[-attach_cx,       attach_w/2],
-	       [0,                -attach_w/2],
-	       [attach_total_len, -attach_w/2],
-	       [attach_total_len, attach_w/2]]);
-      translate([attach_total_len, 0])
+    polygon([[0,   0],
+	     [-0.1, 0],
+	     [-0.1, -cover_ysz],
+	     [0,    -cover_ysz]]);
+    translate([attach_cx, -attach_cdy]) rotate([0,0,-attach_ang]) {
+      polygon([[-attach_cx,          attach_w/2],
+	       [0,                   -attach_w/2],
+	       [attach_straight_len, -attach_w/2],
+	       [attach_straight_len, attach_w/2]]);
+      translate([attach_straight_len, 0])
 	circle(r=attach_w/2);
     }
   }
 }
 
-//module Tube(){
-//  translate(
+module Tube(){
+  %translate([attach_cx, -attach_cdy, -20]) {
+    rotate_extrude(convexity=10) {
+      translate([attach_inrad + attach_tube_dia/2, 0])
+	circle(r=attach_tube_dia/2);
+    }
+  }
+}
+
+module Bolts(){
+  %translate([0,0,-50]) linear_extrude(height=80) {
+    translate([attach_cx, -attach_cdy]) rotate([0,0,-attach_ang]) {
+      translate([attach_inrad - attach_hole_dist - attach_hole_dia/2, 0])
+	circle(r=attach_hole_dia/2, $fn=20);
+      translate([attach_inrad + attach_tube_dia
+		 +attach_hole_dist + attach_hole_dia/2, 0])
+	circle(r=attach_hole_dia/2, $fn=20);
+    }
+  }
+}
 
 color("blue") RearSideTemplate();
 AttachTemplate();
+Tube();
+Bolts();