From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 20 Nov 2018 23:27:13 +0000 (+0000)
Subject: poster-tube-lid: catch wip
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=d8f70205282e42f105ad4cb6df44d73a3404a166;p=reprap-play.git

poster-tube-lid: catch wip

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

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index a463e2c..cadbe62 100644
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -139,6 +139,7 @@ smc_cnr_c_x = sm_bolt_shaft/2 - sm_closure_cnr
   + sm_bolt_head_thick/2 + smc_bolt_nut_eff_thick/2;
 
 catch_cr = catch_knob_dia/2 + catch_stem_beside_gap;
+catch_strap_width = sm_main_width;
 
 cpp0 = [0,0];
 cpp1 = cpp0 + [0,1] * catch_pin_height;
@@ -159,6 +160,8 @@ cpp8 = [ cpp7[0] + catch_cr*2,
 	 cpp0[0] - catch_cr ];
 cppC = cpp8 + [1,1] * catch_cr;
 cppA = [ cpp5[0] - catch_cr*2, cpp0[1] ];
+cppD = cppC + [0,-1] * catch_strap_width;
+cppE = [ cppA[0], cppD[1] ];
 
 $fs= coarse ? 2.5 : 0.5;
 $fa= coarse ? 5 : 1;
@@ -502,7 +505,18 @@ module StrapMount(){ ////toplevel
 }
 
 module CatchCoreProfile(){
-  
+  difference(){
+    polygon([ cpp4,
+	      cpp3,
+	      cpp2,
+	      cpp1,
+	      cpp0,
+	      cppA,
+	      cppE,
+	      cppD,
+	      cppC,
+	      ]);
+  }
 }
 
 //ProfilesDemo();