From d57349deec034888a478ff506c31748b90369621 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Fri, 15 Jul 2016 19:03:54 +0000
Subject: compute gap for the free belt side

---
diff --git a/x-carriage.scad b/x-carriage.scad
index 26e54f6..ac963d5 100644
--- a/x-carriage.scad
+++ b/x-carriage.scad
@@ -64,7 +64,7 @@ module xcarriage() {
   }
 
   difference() {
-   gap=3;
+   gap=belts_apart/6;
    translate([0,-.5,-gap/2])
    cube(size=[cw+2,belt_width+2,belts_apart+2*belt_thickness+gap],center=true);
    for(mx=[0,1]) mirror([mx,0,0]) {
--
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