From 57b224a30889e7865df348fdda30eae9fa75372a Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 20 Apr 2025 18:47:13 +0100
Subject: [PATCH] toolbox-inserts: wip

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 toolbox-inserts.scad | 30 ++++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/toolbox-inserts.scad b/toolbox-inserts.scad
index 5941377..ca21b81 100644
--- a/toolbox-inserts.scad
+++ b/toolbox-inserts.scad
@@ -12,6 +12,10 @@ driver_handle_handle_d = 21.6 + 0.75;
 $fs = 1;
 $fa = 3;
 
+// calculated
+
+wall_top_inner_bevel_ratio = 0.25;
+
 module DriverHandlePositive() { ////toplevel
   linextr_x_yz(0, driver_handle_total_l)
     circle(r = driver_handle_shaft_d/2);
@@ -19,6 +23,10 @@ module DriverHandlePositive() { ////toplevel
     circle(r = driver_handle_handle_d/2);
 }
 
+module WallMinkowskiSphere(wall=well_surround_wall) { ////toplevel
+  sphere($fn=8, r=wall/2);
+}
+
 module WellSurround(half_height, wall=well_surround_wall) {
   // WellSurround(half_height) {
   //     SomethingPositive();
@@ -29,15 +37,29 @@ module WellSurround(half_height, wall=well_surround_wall) {
   // IOW its z==0 must be where the top of the wall is,
   // and half_height is the depth of the well below that.
 
-  difference(){
+  render() difference(){
     union(){
-      linextr(0, half_height)
-	projection(cut=false) children(0);
+      minkowski(){
 
+	linextr(0, half_height - wall/2)
+	  projection(cut=false) children(0);
+
+	WallMinkowskiSphere(wall);
+
+      }
     }
 
-    translate([0, 0, half_height])
+    translate([0, 0, half_height]) {
       children(0);
+
+      /*      hull(){
+	for (zi=[-1,0]) {
+	  linextr(zi * wall * 0.25, 2)
+	    offset($fn=4, r = (zi+1) * wall * 0.25)
+	    projection(cut=true) children(0);
+	}
+	}*/
+    }
   }
 }
 
-- 
2.30.2