From dab6b40ef63d4f7143bc74db5e49951c51148d99 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 25 May 2013 00:07:41 +0100
Subject: [PATCH] tube-crossdrill-jig wip

---
 tube-crossdrill-jig.scad | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/tube-crossdrill-jig.scad b/tube-crossdrill-jig.scad
index a7f35b2..55d8183 100644
--- a/tube-crossdrill-jig.scad
+++ b/tube-crossdrill-jig.scad
@@ -28,6 +28,8 @@ keepslotwidth = 4;
 mainframeextraside = 15;
 mainframeextrafront = 25;
 
+rearwallstrengthwidth = 10;
+
 // computed values
 
 mainframeholex = backslotedgespace/2 + slotwidth/sqrt(2) +
@@ -46,12 +48,15 @@ module MainFrame(){
 	cube([mainframemaxx+1, -mainframeminy, basethick]);
       translate([-1, -rearwallthick, 0])
 	cube([mainframemaxx+1, rearwallthick, mainframemaxz]);
-      translate([mainframemaxx,0,0])
-	rotate([90,0,-90])
-	linear_extrude(height=mainframeendthick)
-	polygon([[-mainframeminy, 0],
-		 [0, mainframemaxz],
-		 [0, 0]]);
+
+      for (x=[keepslotx - 10, mainframemaxx]) {
+	translate([x,0,0])
+	  rotate([90,0,-90])
+	  linear_extrude(height=mainframeendthick)
+	  polygon([[-mainframeminy, 0],
+		   [0, mainframemaxz],
+		   [0, 0]]);
+      }
 
       translate([backslotedgespace/2, 0, 1])
 	mirror([0,0,1])
@@ -66,7 +71,7 @@ module MainFrame(){
 		 tubedia + tubetubetopslop + tubetubethick + 4])
 	cube([keepslotx - 10 + 1,
 	      boltholeslotshorter + 0.5,
-	      3]);
+	      rearwallstrengthwidth]);
     }
   }
 }
-- 
2.30.2