From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 5 Nov 2022 13:19:10 +0000 (+0000)
Subject: topeak-mtx-tortec-expeditionrack-adapter: more demo
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=b6231894731bbc1fec940e54e246f9eb16a8b21d;p=reprap-play.git

topeak-mtx-tortec-expeditionrack-adapter: more demo

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/topeak-mtx-tortec-expeditionrack-adapter.scad b/topeak-mtx-tortec-expeditionrack-adapter.scad
index bf96985..54a83a4 100644
--- a/topeak-mtx-tortec-expeditionrack-adapter.scad
+++ b/topeak-mtx-tortec-expeditionrack-adapter.scad
@@ -334,6 +334,23 @@ module Principal(){
   }
 }
 
+module RackForDemo(){ ////toplevel
+  elevation = elevation_of_bolt_for(rear_to_cross_rail);
+  rack_rail_y = rack_rail_y_of_elevation(elevation);
+
+  rotate([-atan(rack_shear_ratio), 0,0])
+    translate([0, rack_rail_y, brk_block_z/2 + rack_rail_y*rack_shear_ratio]) {
+      for (m=[0]) mirror([m,0,0]) {
+        linextr(-50, 50 + rear_to_cross_rail)
+	  translate([rack_rail_x, 0])
+	  circle(r= rack_rail_dia/2);
+	}
+      translate([0,0, rear_to_cross_rail])
+	linextr_x_yz(rack_rail_x, -rack_rail_x)
+	circle(r= rack_rail_dia/2);
+    }
+}
+
 module Front(){ ////toplevel
   // xxx elevation is wrong
   Principal($elevation_nominal=
@@ -365,6 +382,8 @@ module RearDemo(){ ////toplevel
   SomeDemo() Rear();
 }
 module RearRackDemo(){ ////toplevel
-  rotate([atan(rack_shear_ratio),0,0])
-    SomeDemo() Rear();
+  rotate([atan(rack_shear_ratio),0,0]) SomeDemo() {
+    Rear();
+    %RackForDemo();
+  }
 }