earring-stand: fix pr[0]

diff --git a/earring-stand.scad b/earring-stand.scad
index 437c038defcfe607a08d1698fae5c6de310babde..f68ff55652ae66e0cb621c28c91e367f595780ad 100644 (file)
--- a/earring-stand.scad
+++ b/earring-stand.scad
@@ -152,7 +152,8 @@ ur = [ -uf[1], uf[0]];
 
 pp = [0, 0];
 pq = pp + uf*front_height + ur*eclip_ra_offset;
 
 pp = [0, 0];
 pq = pp + uf*front_height + ur*eclip_ra_offset;

-pr = [ pq[0] - eclip_base_offset + eclip_wall_offset, 0 ];
+pr = [ pq[0] - eclip_base_offset - eclip_wall_offset,
+       0 ];

 
 echo("uf ur P Q R", uf, ur, pp, pq, pr);
 
 
 echo("uf ur P Q R", uf, ur, pp, pq, pr);