From ee16e07412f22f0fd68ad19ce46c429466454888 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 13 Jun 2017 19:41:14 +0100
Subject: [PATCH 1/1] sewing-table: jig: other diagonals

---
 sewing-table.scad.m4 | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4
index ec3f8ed..8ca8ff1 100644
--- a/sewing-table.scad.m4
+++ b/sewing-table.scad.m4
@@ -209,10 +209,13 @@ module TileBase(botleft, topright){
 	}
 	if (JIG) {
 	  translate([0,0,-20]) linear_extrude(height=20) {
-	    translate(botleft)
-	      rotate(atan2(size[1],size[0]))
-	      translate([0, -test_edge/2])
-	      square([vectorlen2d(size), test_edge]);
+	    for (diag=[[ +1, botleft                   ],
+		       [ -1, [topright[0], botleft[1]] ]]) {
+	      translate(diag[1])
+		rotate(atan2(size[1], diag[0] * size[0]))
+		translate([0, -test_edge/2])
+		square([vectorlen2d(size), test_edge]);
+	    }
 	  }
 	}
       }
-- 
2.30.2