X-Git-Url: http://git.hcoop.net/clinton/3d-models.git/blobdiff_plain/b097fbc1e09a0b00c8c56bdb795a269d8a78dc98..2d35a86501088481048f975a8f41c7ef2db6e875:/acorn/acorn-threads.scad

diff --git a/acorn/acorn-threads.scad b/acorn/acorn-threads.scad
index 688ef30..d5e7fe2 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) {
 
@@ -110,16 +111,18 @@ 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);
 	       }
 
 
-	       translate ([0, 0, -0.01]) acorn_thread (internal = true, ring = false);
+	       if (thread_height != 0) {
+		    translate ([0, 0, -0.01]) acorn_thread (internal = true, ring = false);
+	       }
 	  }
      }