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light bracket: countersunk holes, better base, etc.
[reprap-play.git]
/
light-bracket.scad
diff --git
a/light-bracket.scad
b/light-bracket.scad
index 6e42bf1c16cf2964faac032c7aec02b59d40f9ec..0ec13379f96b382f9898937f72ba070dd20645a2 100644
(file)
--- a/
light-bracket.scad
+++ b/
light-bracket.scad
@@
-1,16
+1,19
@@
-remote_width=56.2;
-remote_height=124.7;
-remote_thick=6.8;
+shrinkage = 1.0126; // width of 56.2 gives 55.5
+remote_width= 56.2 * shrinkage;
+remote_height=124.7 * shrinkage;
+remote_thick=7.3; // height of 6.8 gives 6.3
mainhole_thick=remote_thick+1;
hook_hook_thick=1.5;
hook_stem_thick=1.5;
hook_hook_len=1.5;
mainhole_thick=remote_thick+1;
hook_hook_thick=1.5;
hook_stem_thick=1.5;
hook_hook_len=1.5;
-base_thick=
6
;
-base_margin=
4
.0;
+base_thick=
3.5
;
+base_margin=
3
.0;
base_width=remote_width-base_margin*2;
base_height=remote_height-base_margin*2;
base_edgewidth=4;
base_width=remote_width-base_margin*2;
base_height=remote_height-base_margin*2;
base_edgewidth=4;
+screw_ys=[ 28, remote_height-28 ];
+
// origin is base of mainhole
module mainhole() {
// origin is base of mainhole
module mainhole() {
@@
-77,21
+80,21
@@
module base() {
// cube(center=false, [base_width,base_height,base_thick+10]);
}
// 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])
module stuff() {
hstuff();
mirror([1,0,0]) hstuff();
base();
for (y=screw_ys) translate([0, y, -20])
- cylinder(r=
7
.5, h=21);
+ cylinder(r=
6
.5, h=21);
}
module screwhole(holedia, csdia) {
// screw goes along z axis downwards
}
module screwhole(holedia, csdia) {
// screw goes along z axis downwards
- // origin is
base of countersink
+ // origin is
top of head
// results are positive, so this should be subtracted
translate([0,0,-100]) cylinder(h=200, r=holedia/2);
// results are positive, so this should be subtracted
translate([0,0,-100]) cylinder(h=200, r=holedia/2);
+ csdist=(csdia-holedia)/2;
+ translate([0,0,-csdist]) cylinder(h=csdist, r1=holedia/2, r2=csdia/2);
cylinder(h=100, r=csdia/2);
}
cylinder(h=100, r=csdia/2);
}
@@
-100,8
+103,9
@@
module bracket() {
difference() {
stuff();
mainhole();
difference() {
stuff();
mainhole();
- for (y=screw_ys) translate([0, y, -base_thick+2])
- screwhole(4,10);
+ for (y=screw_ys) translate([0, y, 0])
+ screwhole(5,9); //dia=4 gives 2.9
+ //holedia=10 gives 9.0 want 7.0
translate([0,0,-50 - base_thick])
cube(center=true,[300,300,100]); // print bed
}
translate([0,0,-50 - base_thick])
cube(center=true,[300,300,100]); // print bed
}