From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Fri, 20 Oct 2017 19:43:22 +0000 (+0100)
Subject: poster-tube-lid: wip parametric integration, rework
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=commitdiff_plain;h=136a8badbe3c1373c491b4cd1b26dbf3b0fd5892

poster-tube-lid: wip parametric integration, rework
---

diff --git a/poster-tube-lid-parametric.scad.pl b/poster-tube-lid-parametric.scad.pl
index 9fa0b2e..a2fd3a7 100755
--- a/poster-tube-lid-parametric.scad.pl
+++ b/poster-tube-lid-parametric.scad.pl
@@ -74,10 +74,10 @@ sub point ($$$$) {
 		     );
     } elsif ($ip =~ m/^ball[02]$/) {
 	my $angle = $it * TAU/4;
-	$i_offset = V( -$lin_len -$sine_len
-		       -sin($angle) * $ballend_xr,
+	my $dx = sin($angle) * $ballend_xr;
+	$i_offset = V( -$lin_len -$sine_len - $dx,
 		       0,
-		       +$sine_height
+		       +$sine_height + $dx * tan($sine_angle)
 		     );
 	$i_thickscale = cos($angle);
     } else {