x-end: initial import of prusa mk3 belt tensioner

not integrated at all, just copied in and reformatted into modules.

"Copyright (c) Josef Průša <iam@josefprusa.cz> and contributors"

diff --git a/box_frame/x-end-motor.scad b/box_frame/x-end-motor.scad
index e897022..8ba0a9e 100644 (file)
--- a/box_frame/x-end-motor.scad
+++ b/box_frame/x-end-motor.scad
@@ -81,6 +81,31 @@ module x_end_motor_sr() {
      }
 }
 
+module x_end_belt_tensioner_base () {
+     translate([-24,9,30.25]) rotate(a=[90,30,0]) cylinder(h=27, r=4, $fn=6);
+     difference()
+     {
+         translate([-30,9-27,30.25]) rotate(a=[0,45,0]) cube([11,27,11]);
+         translate([-37.465,9-27-1,20]) cube([10,30,21]);
+         translate([-29,9-27-1,35]) cube([10,30,21]);
+         translate([-20,9-27-1,20]) cube([25,30,21]);
+     }
+     difference()
+     {
+         translate([-24,-18,30.25]) rotate(a=[90,0,0]) cylinder(h=10.5, r=5, $fn=30);
+         translate([-24-19.5,-18,20]) rotate(a=[90,0,0]) cube([20,20,20]);
+     }
+}
+
+module x_end_belt_tensioner_holes () {
+     translate(v=[0,32,30.25])
+     {
+         translate([-24,-15.5-2.5,0]) rotate(a=[90,0,0]) cylinder(h=35, r=1.6, $fn=30);
+         translate([-24,-15.5-4.5-30,0]) rotate(a=[90,0,0]) cylinder(h=30, r=3.2, $fn=30);
+         translate([-24-10+2.8,-29,0-2.8]) cube([10,2.1,5.6]);
+     }
+}
+
 module x_end_motor_base(){
  x_end_base();
  // motor arm