From 854810efc1ba85d746976c4c48c691a238803ffb Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 4 Dec 2025 23:58:16 +0000
Subject: [PATCH] toolbox-inserts: LargeBitUniversalJointHolder, wip

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 toolbox-inserts.scad | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/toolbox-inserts.scad b/toolbox-inserts.scad
index 44b6dab..a4e06ba 100644
--- a/toolbox-inserts.scad
+++ b/toolbox-inserts.scad
@@ -612,13 +612,27 @@ module LargeBitHolder() { ////toplevel
 //-------------------- LargeBitUniversalJoint ----------
 
 module LargeBitUniversalJointHolder() { ////toplevel
+  fixings = fixing_positions_2row(0, 2);
+  fixings_offset = [ -1.5, -0.5, 0 ] * fixing_pitch;
+
   difference(){
     union(){
-      UniversalJointHolderCore();
+      translate(-fixings_offset)
+        UniversalJointHolderCore();
+
       translate(fixing_pitch * [-1, -1]
-		+ [+1, -2.5])
+		+ [+1, -2.5]
+		- fixings_offset)
 	LargeBitHolderCore();
+
+      for (f = fixings)
+	AtFixingPositions(f)
+	  FixingSurround();
     }
+
+    for (f = fixings)
+      AtFixingPositions(f)
+	FixingInternalThread();
   }
 }
 
-- 
2.30.2