From 2116d3bfba5002292d8eb42fce45e4fb6b02d45b Mon Sep 17 00:00:00 2001
From: mmcwilliams <hi@mmcwilliams.com>
Date: Thu, 20 Aug 2020 08:35:47 -0400
Subject: [PATCH] Make the "bottom" argument a function parameter in the shared
 spiral() module.

---
 scad/libraries/gnal_v3.scad | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scad/libraries/gnal_v3.scad b/scad/libraries/gnal_v3.scad
index b6fe5d7..d2353ef 100644
--- a/scad/libraries/gnal_v3.scad
+++ b/scad/libraries/gnal_v3.scad
@@ -43,9 +43,9 @@ function calcIncrement(spacing, fn) = spacing / fn;
  * 8418 vectors at 60 rotations. This is an edge case, only appearing in OpenSCAD
  * 2019.05 (and maybe earlier), but should be explored.
  **/
-module spiral (rotations = 40, start_d = 48, spacing = 2.075, fn) {
+module spiral (rotations = 40, start_d = 48, spacing = 2.075, bottom = -7.1, fn) {
 
-    bottom = -7.1;
+    //bottom = -7.1;
     w = 1.4;
     top_w = .8;
     top_offset = (w - top_w);