From 7c8a337935f1191cc3b8a17434ef5fd482120db6 Mon Sep 17 00:00:00 2001
From: Stephen J Carpenter <sjc@carpanet.net>
Date: Wed, 20 May 2026 01:12:44 -0400
Subject: [PATCH] Refactor head corner

Centered Z
---
 bracket.scad | 33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/bracket.scad b/bracket.scad
index 1e7a552..46812d8 100644
--- a/bracket.scad
+++ b/bracket.scad
@@ -23,12 +23,13 @@ ring=true;
 
 /* [Render Options] */
 part=""; // [ none, head_corner_rear, head_corner_front, foot_corner_front, foot_corner_rear, head_cross_front, head_cross_rear, foot_cross_front, foot_cross_rear, foot_cross_spacer, head_cross_gasket, corner_gasket, head_corner_test ]
-model = "none"; // ["none", "corner_leg", "center_leg"]
-plate = false;
-mate  = false;
-render_fs=.8;
-render_fn=0;
-render_fa=3;
+model     = "none"; // ["none", "corner_leg", "center_leg"]
+plate     = false;
+mate      = false;
+explode   = false;
+render_fs = .8;
+render_fn = 0;
+render_fa = 3;
 
 // Set Render Options
 $fs= ($preview) ? $fs : render_fs;
@@ -59,20 +60,17 @@ module head_rear(ring=ring) {
 			left(LegOff/2+4)back(footboard_y) cuboid([
 				platfoot_x+16+LegOff,
 				headpost_y+footboard_y,
-				blockz], fillet=3, edges=EDGES_BACK+EDGES_Y_ALL, align=V_FRONT+V_TOP);
-			if (ring) { fwd(10)up(blockz/2)right(40-4)rotate([90,0,-45])rotate_extrude(angle=360) left(18) circle(d=10); }
+				blockz], fillet=3, edges=EDGES_BACK+EDGES_Y_ALL, align=V_FRONT);
+			if (ring) { fwd(10)up(0*blockz/2)right(40-4)rotate([90,0,-45])rotate_extrude(angle=360) left(18) circle(d=10); }
 			
 		}
 		//%footboard();
 		headpost(y=2*headpost_y);
-		left(44)up(blockz/2)cuboid([50, 150,headcross_yz]); // crossbar
+		left(44)up(0*blockz/2)cuboid([50, 150,headcross_yz]); // crossbar
 		// Screw Holes
 		rx = 5 + headpost_x/2;
-		right(rx)up(blockz-5) screw_channel();
-		right(rx)up(blockz/2) screw_channel();
-		right(rx)up(5) screw_channel();
-		left(50)up(blockz-5) screw_channel();
-		left(50)up(5) screw_channel();
+		right(rx)zspread(n=3, l=blockz-10) screw_channel();
+		left(50)zspread(n=2, l=blockz-10) screw_channel();
 	}
 }
 
@@ -83,13 +81,13 @@ module head_front() {
 			platfoot_x+16+LegOff,
 			platfoot_y+footboard_y,
 			blockz ], fillet=3, 
-			edges=EDGES_FRONT+EDGES_Y_ALL, align=V_FRONT+V_TOP);
+			edges=EDGES_FRONT+EDGES_Y_ALL, align=V_FRONT);
 		back(.01) platfoot();
 		// Screw Holes
 		rx= platfoot_y + (16+LegOff)/2;
 		bz = -40;
 		bl = 58 - bz;
-		up(blockz/2) {
+		up(0*blockz/2) {
 			zspread(n=3, l=blockz-10) right(rx) rotate([-90,180,0]) m4s_clear(bl=bl, bz=bz, drop=true, sh=0);
 			zspread(n=2, l=blockz-10) left(50-LegOff) rotate([-90,180,0]) m4s_clear(bl=bl, bz=bz, drop=true, sh=0);
 		}
@@ -248,9 +246,10 @@ if (part == "head_cross_front") {
 } else if (part == "head_corner_rear") {
 	rot = plate ? -90 : 0;
 	upoff = plate ? footboard_y : 0;
+	yoff  = explode ? 10 : 0;
 	up(upoff) xrot(rot) {
 		head_rear();
-		if (mate) fwd(38) left(LegOff)%head_front();
+		if (mate) fwd(38+yoff) left(LegOff)%head_front();
 	}
 } else if (part == "foot_corner_front") {
 	rot = plate ? 0 : 0;