From 5fc39109c531d0b4c61a64f206c66e4e34befea7 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Fri, 31 Aug 2018 22:57:52 +0000
Subject: optimizied knob generation

---
diff --git a/another.scad b/another.scad
index 0f696cc..05bfab3 100644
--- a/another.scad
+++ b/another.scad
@@ -421,12 +421,10 @@ module the_extruder(
     }
    }
    difference() {
-    union() {
-     cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=fnd*gearbox_d);
+    hull() {
+     cylinder(d=gearbox_d-2*ch,h=knob_h,$fn=fnd*gearbox_d);
      translate([0,0,ch])
-     cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=fnd*gearbox_d);
-     translate([0,0,knob_h-ch])
-     cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=fnd*gearbox_d);
+     cylinder(d=gearbox_d,h=knob_h-2*ch,$fn=fnd*gearbox_d);
     }
     for(a=[0:360/knob_indents:359]) rotate([0,0,a])
      translate([0,gearbox_d/2,-1])
--
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