X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=light-bracket.scad;h=0e3bee66da5b30e6114bda563d6b8eea650c4ffa;hb=733dc6e94378d1fba45064e3a2c4203128dd76b7;hp=2c591dc46f75455fc0325a0a754660834a3714f6;hpb=c52d022a1f237b5df7e78d76f290aea55198b8bc;p=reprap-play.git

diff --git a/light-bracket.scad b/light-bracket.scad
index 2c591dc..0e3bee6 100644
--- a/light-bracket.scad
+++ b/light-bracket.scad
@@ -2,11 +2,16 @@ remote_width=56.2;
 remote_height=124.7;
 remote_thick=6.8;
 mainhole_thick=remote_thick+1;
-hook_width=1.5;
-hook_height=1.5;
-hook_thick=1.5;
-hook_hook=2.5;
-base_thick=10;
+hook_hook_thick=1.5;
+hook_stem_thick=1.5;
+hook_hook_len=1.5;
+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
 
 module mainhole() {
 	translate([ -remote_width/2, 0, 0 ])
@@ -15,21 +20,85 @@ module mainhole() {
 }
 
 module hhook(extent) {
-	translate([ -remote_width/2 - hook_thick, 0, -base_thick*2 ])
-		cube(center=false, size=[ hook_thick+hook_hook, extent,
-			base_thick*2 + mainhole_thick + hook_height ]);
+	difference() {
+		translate([ -hook_stem_thick, 0, -base_thick*2 ])
+			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 ]);
+	}
+}
+
+module hhookside(extent) {
+	translate([ -remote_width/2, 0, 0 ])
+		hhook(extent);
+}
+
+module hhookbot(extent) {
+	rotate(a=90, v=[0,0,1]) hhook(extent);
+}
+
+module hstuff() {
+	translate([0,70,0]) hhookside(15);
+	translate([0,10,0]) hhookside(15);
+	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([ 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() {
-	translate([0,50,0]) hhook(10);
+	hstuff();
+	mirror([1,0,0]) hstuff();
+	base();
+	for (y=screw_ys) translate([0, y, -20])
+		cylinder(r=7.5, h=21);
 }
 
-//	mirror([1,0,0]){
-//	hobject();
-//}
-//}
+module screwhole(holedia, csdia) {
+	// screw goes along z axis downwards
+	// origin is base of countersink
+	// results are positive, so this should be subtracted
+	translate([0,0,-100]) cylinder(h=200, r=holedia/2);
+	cylinder(h=100, r=csdia/2);
+}
 
 difference() {
 	stuff();
-	# mainhole();
+	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
 }