From: Clinton Ebadi <clinton@unknownlamer.org>
Date: Mon, 30 Sep 2019 03:13:45 +0000 (-0400)
Subject: acorn: make cap dome height parametric
X-Git-Url: http://git.hcoop.net/clinton/3d-models.git/commitdiff_plain/1b73bd8eae1c26ad1d12fbf0483437190b259bdf?ds=sidebyside

acorn: make cap dome height parametric

Minimal support for alternative cap models.
---

diff --git a/acorn/acorn-threads.scad b/acorn/acorn-threads.scad
index 688ef30..7173ae5 100644
--- a/acorn/acorn-threads.scad
+++ b/acorn/acorn-threads.scad
@@ -35,6 +35,7 @@ module acorn (thread_pitch = 3.0,
 	      base_height = AUTO_CALCULATE,
 	      wall_thickness = AUTO_CALCULATE,
 	      outer_d = AUTO_CALCULATE,
+	      dome_h = AUTO_CALCULATE,
 
               keychain = true) {
 
@@ -110,9 +111,9 @@ module acorn (thread_pitch = 3.0,
 	       }
 	       if (keychain) cap_keychain_holes ();
 
-	       // hollow it out (make parametric later, this is pretty ugly now, but calc seems to be ok for RaleighAcorn)
+	       // hollow the cap out (make parametric later, this is pretty ugly now, but calc seems to be ok for RaleighAcorn)
 	       diam_to_height_ratio = 3.2;
-	       dome_h = outer_d / diam_to_height_ratio - thread_height;
+	       dome_h = (dome_h == AUTO_CALCULATE) ? outer_d / diam_to_height_ratio - thread_height : dome_h;
 	       echo ("dome_h = ", dome_h);
 	       difference () {
 		    translate ([0, 0, thread_height-0.01]) dome (d=outer_d, h=dome_h);