From 1f58a40243b3423b5ca3cb53780c9d6448aab779 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 14 Dec 2015 14:07:47 +0000
Subject: [PATCH] filamentspool: Cup: add prongrib on side

---
 filamentspool.scad | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/filamentspool.scad b/filamentspool.scad
index fb2f8a9..7f6defd 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -183,8 +183,8 @@ module FilamentCup() { ////toplevel
 
   translate([cupstrong_dx, prongwidth, 0]) {
     cube([prongwidth, baselen-prongwidth, prongthick]);
-    for (y = [0, .4, .7, 1])
-      translate([0, (baselen - prongwidth*2) * y, 0])
+    for (y = [0, .33, .67, 1])
+      translate([0, (baselen - prongwidth) * y, 0])
 	cube([-cupstrong_dx + 1, prongwidth, prongthick]);
   }
   if (cupstrong_dx != 0) {
@@ -196,6 +196,11 @@ module FilamentCup() { ////toplevel
   translate([0, -0.2, 0])
     cube([prongribwidth, baselen, prongthick + prongribheight]);
 
+  if (prongribheight > 0) {
+    translate([-prongwidth, baselen, 0])
+      cube([cupheight/2, prongwidth + prongribheight, prongribwidth]);
+  }
+
   midrad = cupwidth/2 + prongwidth/2;
 
   propshift = stalklength - overclipdepth - prongthick + propxshift;
-- 
2.30.2