# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1418324581 -3600
# Node ID 894194831154504dbefba3d914f819c663c36e78
# Parent  8db0d3d41b7358c75e4330ad8fc77c1e2e58806f
Fixed the comment about the back cavity in the connector portion.

diff -r 8db0d3d41b73 -r 894194831154 cartridge.scad
--- a/cartridge.scad	Thu Dec 11 19:28:09 2014 +0100
+++ b/cartridge.scad	Thu Dec 11 20:03:01 2014 +0100
@@ -254,8 +254,8 @@
 
 	/*
 	The back cavity is the indented part at the bottom of the back of the
-	cartridge. It appears to be mechanically superfluous, just making the
-	shape of the cartridge look a bit fancier.
+	cartridge. It appears to be mechanically necessary, making sure that
+	cartridges cannot be plugged in the wrong way round.
 	*/
 
 	back_cavity_width = 68.0;