From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 5 Jul 2015 12:51:48 +0000 (+0100)
Subject: pandemic-quarantines: first try
X-Git-Tag: filamentspool-v2-release~180
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=b52559747d341233af191fd026f5c3f3a07252a5;p=reprap-play.git

pandemic-quarantines: first try
---

diff --git a/pandemic-quarantines.scad b/pandemic-quarantines.scad
index 5d210dc..834d128 100644
--- a/pandemic-quarantines.scad
+++ b/pandemic-quarantines.scad
@@ -3,10 +3,15 @@
 prisml = 13;
 triedge = 13;
 
-etchdepth = 1.5;
+etchdepth = 1.0;
 
 figboxsize = 13;
 
+// calculated
+
+triheight = triedge / 2 * sqrt(3);
+tricentre = triedge / 2 * tan(30);
+
 module Number(number) {
   translate([-figboxsize/2, -figboxsize/2])
     import(file=str("pandemic-quarantine-l",number,".dxf"), convexity=100);
@@ -14,7 +19,7 @@ module Number(number) {
 
 module FaceTriangle(){
   x = triedge / 2;
-  y = triedge / 2 * sqrt(3);
+  y = triheight;
   polygon([[-x,  0],
 	   [ 0,  y],
 	   [ x,  0]]);
@@ -33,8 +38,19 @@ module NumberCut(number){
 }
 
 module Etchings(){
-  for (my=[0,1]) {
-    
+  for (rot=[0,180]) {
+    rotate([0,0, rot])
+      translate([0, -prisml/2, triedge * 0.3])
+      rotate([90, 0, 0])
+      NumberCut(2);
+  }
+  for (rot=[0,120,240]) {
+    translate([0,0, tricentre])
+      rotate([0, rot, 0])
+      translate([0,0, -tricentre])
+      rotate([0,180,0])
+      rotate([0,0, rot==240 ? 90 : -90])
+      NumberCut(1);
   }
 }