X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=light-bracket.scad;h=f97611fc8885135d6a60eb548c106fddf0a1054f;hb=4a69b3f0d287ac00527d4acb8862bac53c886e3e;hp=c5715f605e05147107e517a4ea2b9653d4e363f3;hpb=55e5735470f8bf73740c1c26e7d3a0178a8ff72c;p=reprap-play.git

diff --git a/light-bracket.scad b/light-bracket.scad
index c5715f6..f97611f 100644
--- a/light-bracket.scad
+++ b/light-bracket.scad
@@ -9,6 +9,7 @@ base_thick=6;
 base_margin=4.0;
 base_width=remote_width-base_margin*2;
 base_height=remote_height-base_margin*2;
+base_edgewidth=4;
 
 // origin is base of mainhole
 
@@ -21,9 +22,12 @@ module mainhole() {
 module hhook(extent) {
 	difference() {
 		translate([ -hook_stem_thick, 0, -base_thick*2 ])
-			cube(center=false, size=[ hook_stem_thick+15, extent,
-				base_thick*2 + mainhole_thick
-					+ hook_hook_thick ]);
+			cube(center=false,
+				size=[
+			hook_stem_thick+base_margin+base_edgewidth-1,
+			extent,
+			base_thick*2 + mainhole_thick + hook_hook_thick
+					]);
 		translate([hook_hook_len, -5, 0])
 			 cube(center=false, size=[ 20, extent+10, 30 ]);
 	}
@@ -44,15 +48,43 @@ module hstuff() {
 	translate([-10,0,0]) hhookbot(15);
 }
 
+module slashes() {
+	for (y=[-35 : 35 : +40])
+		translate([0,y,0])
+			rotate(v=[0,0,1],a=45)
+				cube(center=true, [ 5,200,200 ]);
+}
+
 module base() {
-	translate([-base_width/2, base_margin, -base_thick*2])
-		cube(center=false, [base_width,base_height,base_thick+10]);
+	translate([ 0, base_height/2 + base_margin, -base_thick/2 ])
+	intersection() {
+		cube(center=true,
+			[ base_width, base_height, base_thick+10 ]);
+		union() {
+			difference() {
+				cube(center=true, [ 200,200,200 ]);
+				cube(center=true,
+					[ base_width - base_edgewidth*2,
+					  base_height - base_edgewidth*2,
+					  base_thick + 15 ]);
+				
+			}
+			slashes();
+			mirror([1,0,0]) slashes();
+		}
+	}
+//	translate([-base_width/2, base_margin, -base_thick*2])
+//		cube(center=false, [base_width,base_height,base_thick+10]);
 }
 
+screw_ys=[ 20, remote_height-30 ];
+
 module stuff() {
 	hstuff();
 	mirror([1,0,0]) hstuff();
 	base();
+	for (y=screw_ys) translate([0, y, -20])
+		cylinder(r=7.5, h=21);
 }
 
 module screwhole(holedia, csdia) {
@@ -63,11 +95,19 @@ module screwhole(holedia, csdia) {
 	cylinder(h=100, r=csdia/2);
 }
 
-difference() {
-	stuff();
-	mainhole();
-	translate([0, 20,               -base_thick+2]) screwhole(4,10);
-	translate([0, remote_height-30, -base_thick+2]) screwhole(4,10);
-	translate([0,0,-50 - base_thick])
-		cube(center=true,[300,300,100]); // print bed
+module bracket() {
+	// this is the actual thing we want
+	difference() {
+		stuff();
+		mainhole();
+		for (y=screw_ys) translate([0, y, -base_thick+2])	
+			screwhole(4,10);
+		translate([0,0,-50 - base_thick])
+			cube(center=true,[300,300,100]); // print bed
+	}
+}
+
+intersection() {
+	bracket();
+	cube(center=true, [100,55,100]);
 }