From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 23 Jul 2016 22:54:18 +0000 (+0100)
Subject: earring-stand: fix ur
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=2e5326243ec25326b22b4645b59ad35e2bb28578;p=reprap-play.git

earring-stand: fix ur
---

diff --git a/earring-stand.scad b/earring-stand.scad
index 765fd20..b8f5dbb 100644
--- a/earring-stand.scad
+++ b/earring-stand.scad
@@ -148,12 +148,14 @@ module TestPlanDemo(){
 beta = asin(front_setback / front_height);
 
 uf = [-sin(beta), cos(beta)];
-ur = [-uf[0], uf[1]];
+ur = [ -uf[1], uf[0]];
 
 pp = [0, 0];
 pq = pp + uf*front_height + ur*eclip_ra_offset;
 pr = [ pq[0] - eclip_base_offset + eclip_wall_offset, 0 ];
 
+echo("uf ur P Q R", uf, ur, pp, pq, pr);
+
 module Sketch(){
   polygon([pq, pp, pr]);
 }