/
hm-case-43.scad
738 lines (666 loc) · 24.9 KB
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hm-case-43.scad
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// preview[view:northeast, tilt:topdiagonal]
/* [Options] */
// Pit probe type
Control_Probe = "Thermocouple"; // [Thermocouple,Thermistor,None]
// Raspberry Pi Model
Pi_Model = "3B/2B/1B+"; // [3B/2B/1B+,Connectorless,1A+,Zero,3A+]
// Which case halves
Pieces = "Both"; // [Both,Top,Bottom]
// Probe mono jack type (MJ1 is the smaller new one for 4.3.6)
ThermistorJack = 1; // [0:MJ-2508N,1:MJ1-2503A]
// Include cutouts and mounts for LCD/Buttons
LCD = 1; // [0:None,1:2-line]
// Thickness of side walls (mm) - Set to trace width multiple
wall = 2.0;
/* [Advanced] */
// Thickness of top and bottom faces (mm)
wall_t = 1.45;
// Height of the body edge bead chamfer (mm)
body_chamfer_height = 1.5;
// Corner ear height (mm) - 0 to disable
MouseEarHeight = 0;
// Corner leg height (mm) - 0 to disable
MouseLegHeight = 0; //body_chamfer_height/2;
// Screw hardware
NutHardware = 2; // [0:Captive Nut,1:5mm Injection Threaded Insert,2:Threaded Insert]
/* [Hidden] */
// External corner radius on the body (mm)
body_corner_radius = wall*2-1/2;
w_off = 0.5; // offset the heatermeter origin from the left edge
d_off = 2.0; // offset the heatermeter origin from the front edge
w = inch(3.725)+0.7+w_off; // overall interior case width
d = inch(3.75)+1.0+d_off; // overall interior case depth
// 19.1+ headless Zero
// 22.4 headless Pi3 (limited by nuttrapps interfering with PCB to -6.7)
// 32 standard
h_b = [32.5-6.7, 32.5][LCD]; // overall interior case height
probe_centerline = 9.3+([0, 3.0][ThermistorJack]); // case is split along probe centerline on the probe side
case_split = 12.3; // and the case split on the other 3 sides (12.4 ideal?)
pic_ex = 1.7;
lcd_mount_t = 8.2 - (wall_t - 0.8);
pi_screw_t = 2.3;
body_chamfer_height_t = body_chamfer_height;
body_chamfer_height_b = body_chamfer_height;
led_dia = 2.9;
led_h = 4.6 - 1;
led_fudge = 0.4; // total extra diameter to expand the hole and head sphere
led_inset = 0.5; // amount to extend LED through case
e = 0.01;
is_jig = 0; // generate a jig for soldering LEDs
function inch(x) = x*25.4;
echo(str("Case dimensions (mm): ", w+2*wall, "x", d+2*wall, "x", h_b+2*wall_t));
main();
module main()
{
if (is_jig) {
intersection() {
hm43_split();
translate([wall+6,-d-wall+3,-e]) cube([w-12,d-8,15]);
}
difference() {
cube([w-12,d-8,8 - wall_t]);
translate([wall,wall,-e]) cube([w-12-2*wall, d-8-2*wall, 8 - wall_t +2*e]);
}
} /* is_jig */
else
hm43_split();
}
module cube_fillet_chamfer(size,f,c,$fn=32) {
hull() {
translate([f,f,c]) linear_extrude(height=size[2]-2*c) minkowski() {
square([size[0]-2*f, size[1]-2*f]);
circle(r=f, $fn=$fn);
}
translate([f+c,f+c,0]) linear_extrude(height=size[2]) minkowski() {
square([size[0]-2*(f+c), size[1]-2*(f+c)]);
circle(r=f, $fn=$fn);
}
}
}
module jhole(d, h) {
translate([0,0,h/2]) cube([2*(wall+pic_ex),d,h], center=true);
}
module phole() {
dia=4.5;
// Hole for thermistor probe jack
rotate([0,90,0]) cylinder(2*wall, d=dia, $fn=16);
// because 3d print tends to curl up slightly between the probe holes,
// do not go right to the edge on the final layer (stop 0.25mm short on each side)
translate([0,-(dia+0.5)/2, -0.3]) cube([2*wall, dia+0.5, 0.6]);
}
module screwhole() {
rotate(90) translate([0,0,-e]) cylinder(3.5, d=6, $fn=18);
}
module pic_ex_cube(interior) {
translate([0,33.75+interior*(pic_ex+1.3),2])
cube_fillet([pic_ex+e, 59.8-interior*(pic_ex*2+1.3+1.5), 20.8],
vertical=[0, (1-interior)*pic_ex, (1-interior)*pic_ex, 0],
top=[0,pic_ex,0,0],
bottom=[0,pic_ex,0,0]);
}
module screw_pimount() {
cylinder(wall_t+pi_screw_t, d=6.4, $fn=18);
// alignment nubbies
//cylinder(wall_t+pi_screw_t+1.4, d=2.4, $fn=12);
}
module screw_keyhole() {
d=6.2;
d2=3.5;
off=4.15; // ideally would be D but runs into edge of case
h=3;
cylinder(wall_t+2*e, d=d, $fn=18);
translate([-d2/2,0,0]) cube([d2,off,wall_t+2*e]);
translate([0,off,0]) {
cylinder(wall_t+2*e, d=d2, $fn=18);
translate([0,0,wall_t+e]) cylinder(h+e, d=d, $fn=18);
}
}
module screw_keyhole_p() {
d=6.2+wall;
h=2.3;
difference() {
cylinder(wall_t+h, d=d, $fn=18);
translate([0,0,-e]) cylinder(wall_t+h+2*e, d=d-wall, $fn=18);
translate([-d,0,-e]) cube([d*2, d/2, wall_t+h+2*e]);
}
}
module btn_rnd() {
dia = is_jig ? 6.0 : 7.2; // TPU button covers was 8.0
cylinder(wall_t+2*e, d1=dia, d2=dia+1.5*wall_t, $fn=24);
translate([-6.5,-6.5,0]) cube([13,13,0.5+e]);
}
module tc_plusminus() {
T=0.75+e;
H=2;
W=6;
// Minus
translate([0,2,0])
cube_fillet([T, W, H], top=[0,0,0,T]);
translate([0,-(2+W),0]) {
cube_fillet([T, W, H], top=[0,0,0,T]);
translate([0,(W-H)/2,(H-W)/2])
cube_fillet([T, H, W], top=[0,0,0,T]);
}
}
module led() {
translate([0, 0, -(led_h+1)]) {
cylinder(1, d=led_dia+0.3+led_fudge, $fn=24);
translate([0, 0, 1-e]) cylinder(led_h-led_dia/2+e, d=led_dia+led_fudge, $fn=24);
translate([0, 0, 1+led_h-led_dia/2]) sphere(d=led_dia+led_fudge, $fn=24);
}
}
module led_pillar() {
translate([0,0,-led_h-e])
cylinder(led_h-led_inset, d=led_dia+led_fudge+2*wall, $fn=24);
}
module nuttrap() {
ww_w=3;
ww_d=wall;
nut_h=3.2;
nut_ingress = 5.7;
nut_d = nut_ingress / sin(60);
nut_ingress_off = nut_ingress/sqrt(3)/2;
oa_h=wall_t+0.4+nut_h+wall_t+[0,6.7][LCD];
screw_l=[20,25][LCD];
// bottom half for M3 socket cap screw (flush)
difference() {
translate([-5.5/2-ww_w, -nut_ingress/2-d_off-e, 0])
cube_fillet([5.5+2*ww_w, nut_ingress+d_off+ww_d, 6], vertical=[3.4,3.4], $fn=20);
// socket cap
rotate(90) translate([0,0,-e]) cylinder(3.5, d=6, $fn=18);
// screw shaft
translate([0,0,3.5+0.3]) cylinder(oa_h-3, d=3.4, $fn=16);
// rectangular hole to remove some of the solid layer material
translate([-5.7/2, -(6*PI/18)/2, 0]) cube([5.7, 6*PI/18, 3.5+0.3+e]);
}
// top half M3 nut trap
if (NutHardware == 0) { // Captive Nut Slots
translate([0,0,h_b+wall_t-oa_h])
difference() {
translate([-(nut_d/2+ww_w), -nut_ingress/2-d_off, 0])
cube_fillet([nut_d+2*ww_w, nut_ingress+d_off+ww_d, oa_h+e],
vertical=[ww_d/2,3.4], $fn=20);
// M3 screw
translate([0,0,-e]) cylinder(wall_t, d1=4, d2=3.4, $fn=16);
// nut hole / M3 extra
translate([0,0,wall_t+0.3]) {
// nut 2x for an elongated trap
translate([-0.2,0,0]) cylinder(nut_h*1.5+e, d=nut_d, $fn=6);
translate([+0.2,0,0]) cylinder(nut_h*1.5+e, d=nut_d, $fn=6);
cylinder(oa_h-wall_t-0.3, d=4, $fn=16); // M3 with plenty of clearance
//translate([-50,-50,-100]) cube([100,100,100+e]); // cutaway top
}
// nut ingress (sideways trapezoid with wider side at ingress)
translate([nut_ingress_off,-nut_ingress/2,wall_t+0.3])
linear_extrude(nut_h+e) polygon([[0,0],
[nut_d/2+ww_w-nut_ingress_off+0.4+e, -0.8],
[nut_d/2+ww_w-nut_ingress_off+0.4+e, nut_ingress+0.8],
[0,nut_ingress]]);
}
} else if (NutHardware == 1 || NutHardware == 2) { // Threaded inserts
// 5mm injected molding threaded insert (M3 x 5.4 x 5.2 tall)
// 5.0mm dia 5mm tall, with 5.6mm alignment area at top 1.2mm tall
// Threaded insert (M3 x 4.6 x 5.7 tall)
// 4.3mm dia 5.5mm tall, with 4.8mm alignment area at top 1.2mm tall
nhd = [[5.0, 5.0, 5.6], [4.3, 5.5, 4.8]][NutHardware-1];
translate([0,0,h_b+wall_t-(h_b-screw_l+2)])
difference() {
union() {
cylinder((h_b-screw_l)+2, d=nhd[0]+2*wall, $fn=24);
cylinder(1.2-e, d1=nhd[2]+2*wall, d2=nhd[0]+2*wall, $fn=24);
translate([(nhd[0]+2*wall)/-2, -nut_ingress/2-d_off, 0])
cube([nhd[0]+2*wall, nut_ingress/2+d_off, (h_b-screw_l)+2]);
}
cylinder(nhd[1]+1.2, d=nhd[0], $fn=24);
translate([0,0,-e]) cylinder(1.2, d1=nhd[2], d2=nhd[0], $fn=24); // alignment helper
}
}
}
module locklip_p(l, l_offset=0,
lip_insert_depth=2.0, // how deep V to insert
lip_v_off=0.2, // extra height before starting insert
lip_h_off=0.4, // back connector away from mating area
lip_w=2.5, // thickness of attachment beam
insert_inset=[0,0] // inset the insert inside mating area
) {
translate([l_offset,0,0]) rotate([90,0,90])
difference() {
linear_extrude(l-2*l_offset, convexity=11) polygon(points=[
[0.1, -lip_w-lip_insert_depth-lip_h_off], // 0.1 to add depth to keep extrusion manifold
[-lip_w-lip_insert_depth-lip_h_off, 0],
[-lip_w-lip_insert_depth-lip_h_off, lip_v_off+2*lip_insert_depth],
[-lip_insert_depth-lip_h_off, lip_v_off+2*lip_insert_depth,],
[-lip_h_off, lip_v_off+lip_insert_depth],
[-lip_insert_depth-lip_h_off, lip_v_off],
[-lip_insert_depth-lip_h_off, 0],
[0.1, 0]
]);
translate([-lip_w-lip_insert_depth-lip_h_off-e, 0, 0]) {
if (insert_inset[0] > 0)
translate([0,0,-e])
cube([lip_w+lip_insert_depth+lip_h_off+0.1+2*e,
lip_v_off+2*lip_insert_depth+e, insert_inset[0]+e]);
if (insert_inset[1] > 0)
translate([0, 0, l-2*l_offset-insert_inset[1]])
cube([lip_w+lip_insert_depth+lip_h_off+0.1+2*e,
lip_v_off+2*lip_insert_depth+e, insert_inset[1]+e]);
}
}
}
module locklip_n(l, l_offset=0,
lip_insert_depth=2.2, // how deep V to insert
lip_tip_clip=0.3, // how much to shave off the top tip
) {
translate([l-l_offset,0,0]) rotate([90,0,0]) rotate([0,-90,0])
linear_extrude(height=l-2*l_offset) polygon(points=[
[0.1, -3*lip_insert_depth], // 0.1 to add depth to keep extrusion manifold
[0.1, -lip_tip_clip],
[-lip_insert_depth+lip_tip_clip, -lip_tip_clip],
[-e, -lip_insert_depth],
[-lip_insert_depth, -2*lip_insert_depth]
]);
}
module lcd_screw() {
rotate([180]) difference() {
//cylinder(lcd_mount_t, d=2.5+3.2, $fn=16);
cylinder(lcd_mount_t+e, d=2.5, $fn=16);
}
}
module lcd_mount() {
// Assuming starting at bottom left screw hole
//lcd_screw();
//translate([75,0,0]) lcd_screw(); // bottom right hole obscured by PCB
translate([0,31,0]) lcd_screw();
translate([75,31,0]) lcd_screw();
}
module lcd_neg() {
// Assuming starting at bottom left screw hole
// (Note LCD is not centered vertically on PCB, top is 5.15, bottom is 4.55mm)
translate([1.0, 1.55, 0])
cube([73.0, 27.3, lcd_mount_t+wall_t-0.8]); // black bezel inset
translate([5.5, 7.5, 0])
cube([64.0, 15.4, lcd_mount_t+wall_t+2*e]); // LCD active area
//translate([4.23, -2.5, 0])
// cube([16*2.54, 5, lcd_mount_t+wall_t-0.8]); // pins cutout
}
module locklip_top_n(split) {
translate([wall, d+wall, split+wall_t+e])
rotate([180]) {
locklip_n(28);
translate([w-34,0,0]) locklip_n(34);
}
}
module hm_base() {
cube_bchamfer([w+2*wall, d+2*wall, h_b+2*wall_t],
r=body_corner_radius, top=body_chamfer_height_t,
bottom=body_chamfer_height_b, $fn=36);
// extra thick by Pi connectors
if (Pi_Model != "Zero" && Pi_Model != "1A+" && Pi_Model != "3A+")
translate([-pic_ex,wall+d_off,wall_t])
pic_ex_cube(0);
// TC +/-
if (Control_Probe == "Thermocouple")
translate([w+wall*2-e,wall+d_off+10,wall_t+19]) tc_plusminus();
// Eliminate the chamfer where the screws are
translate([wall+inch(0.825)+0.5,wall+d_off+inch(0.1),0]) {
cylinder(body_chamfer_height_b, d=6+2*wall, $fn=24);
translate([inch(2.0),0,0]) cylinder(body_chamfer_height_b, d=6+2*wall, $fn=24);
}
}
module hm43() {
difference() {
union() {
difference() {
hm_base();
// Main cutout
translate([wall, wall, wall_t])
cube_fillet([w, d, h_b],
bottom=[pi_screw_t,pi_screw_t,pi_screw_t,pi_screw_t],
top=[pi_screw_t,pi_screw_t,pi_screw_t,pi_screw_t],
vertical=[body_corner_radius/2,body_corner_radius/2,body_corner_radius/2,body_corner_radius/2],
$fn=[36,4,4]);
if (Pi_Model != "Zero" && Pi_Model != "1A+" && Pi_Model != "3A+")
translate([wall-pic_ex+e,wall+d_off,wall_t]) pic_ex_cube(1);
} // main diff
if (LCD) translate([wall+inch(1.925)+w_off, wall+d_off+inch(1.15), h_b+2*wall_t])
translate([inch(1.3), inch(-0.05), led_inset]) {
led_pillar(); //red
translate([0, inch(0.35), 0]) led_pillar(); //yellow
translate([0, inch(0.70), 0]) led_pillar(); //green
}
} // main union
// Probe jack side
translate([w+wall*0.5, wall+d_off, wall_t+probe_centerline]) {
// Probe jacks
if (Control_Probe == "Thermocouple")
// TC jack
translate([0,inch(0.4)-16.5/2,-1.1-([0, 3.0][ThermistorJack])]) cube([2*wall, 16.5, 6.5]);
else if (Control_Probe == "Thermistor")
translate([0,inch(0.28),0]) phole();
if (Control_Probe != "None") {
translate([0,inch(0.95)+inch(0.37)*0,0]) phole();
translate([0,inch(0.95)+inch(0.37)*1,0]) phole();
translate([0,inch(0.95)+inch(0.37)*2,0]) phole();
}
}
// Pi connector side
translate([0,wall+d_off,wall_t]) {
// Pi connectors
translate([0,0,5]) {
if (Pi_Model == "3B/2B/1B+") {
// ethernet
translate([0,81.5,-0.8]) jhole(15,13);
translate([0,81.5,-1.8]) jhole(5,5);
// USB 0+1
translate([0,62.75,0]) jhole(13,14.8);
translate([0,44.75,0]) jhole(13,14.8);
}
}
// HeaterMeter connectors
translate([0,0,0]) {
// Blower/Servo output
translate([0,25,1.7]) jhole(16.4,13);
// HM power jack
translate([0,inch(0.2),4.2]) jhole(9.4,11);
}
}
// lcd hole
if (LCD)
translate([wall+10.375+w_off, wall+d_off+inch(2), h_b+wall_t-lcd_mount_t-e]) lcd_neg();
// button holes
if (LCD) translate([wall+inch(1.925)+w_off, wall+d_off+inch(1.15), h_b+2*wall_t]) {
//translate([-inch(1.1)/2,-13/2,-wall_t-e]) cube([inch(1.1), 13, 0.5+e]); // clear space between
translate([-inch(1.1)/2,0,-wall_t-e]) btn_rnd(); // left
translate([inch(1.1)/2,0,-wall_t-e]) btn_rnd(); // right
translate([0,inch(0.9)/2,-wall_t-e]) btn_rnd(); // up
translate([0,-inch(0.9)/2,-wall_t-e]) btn_rnd(); // down
// LED holes
translate([inch(1.3), inch(-0.05), led_inset]) {
led(); //red
translate([0, inch(0.35), 0]) led(); //yellow
translate([0, inch(0.70), 0]) led(); //green
}
}
// close screw holes
translate([wall+inch(0.825)+0.5,wall+d_off+inch(0.1),0]) {
screwhole();
translate([inch(2.0),0,0]) screwhole();
}
// keyholes
//translate([wall+24,wall+d_off+39,-e]) {
// translate([0,49,0]) screw_keyhole();
// translate([58,49,0]) screw_keyhole();
//}
} // END OF DIFFERENCE
// Pi mounting screws
translate([wall+24,wall+d_off+39,0]) {
translate([0,0,0]) screw_pimount();
translate([58,0,0]) screw_pimount();
if (Pi_Model == "Zero") {
translate([0,23,0]) screw_pimount();
translate([58,23,0]) screw_pimount();
}
else {
translate([0,49,0]) screw_pimount();
translate([58,49,0]) screw_pimount();
//translate([0,49,0]) screw_keyhole_p();
//translate([58,49,0]) screw_keyhole_p();
}
}
if (Pi_Model != "Zero") {
// Pi right edge stop
translate([wall+w-9.5, wall+d_off+35, wall_t])
difference() {
cube_fillet([9.5,d-d_off-35,4], vertical=[0,0,10/2], $fn=24);
// Pi B+ microsd gap
translate([-e,22,-e]) cube_fillet([5.5,14.5,4+2*e], vertical=[2,0,0,2], $fn=20);
}
} // if !Zero
// close nut traps
if (!is_jig) translate([wall+inch(0.825)+w_off,wall+d_off+inch(0.1),0]) {
nuttrap();
translate([inch(2.0),0,0]) nuttrap();
}
// Top locklip (negative)
if (Pi_Model == "3B/2B/1B+")
locklip_top_n(case_split);
else
locklip_top_n(probe_centerline);
// LCD mount
if (LCD) difference() {
union() {
// Filled block above LCD hole
translate([wall, wall+d_off+78, h_b+wall_t-lcd_mount_t])
cube([w,d-d_off-78,lcd_mount_t+e]);
// LCD grab notch
translate([wall+10.375+w_off, wall+d_off+inch(2), h_b+wall_t-lcd_mount_t])
translate([(77.5-20)/2,34.0-wall_t,-(1.8+wall_t)])
// 1.8=thickness of LCD pcb
cube_fillet([20,1.8+wall_t+wall,1.8+wall_t+e], top=[0,0,1.8+wall_t+e],
vertical=[wall/2,wall/2]);
}
translate([wall+10.375+w_off, wall+d_off+inch(2), h_b+wall_t-e]) {
translate([0, 0, -lcd_mount_t]) lcd_neg();
// vv Keep screw holes where they have been since the beginning
translate([0, 0.5, 0]) lcd_mount();
}
}
if (Pi_Model == "3B/2B/1B+")
translate([-pic_ex, wall+d_off, wall_t+2]) {
// USB pillar reinforcements
translate([0, (44.75+62.75)/2-2.2/2, 1.5])
cube_fillet([pic_ex+wall, 2.2, 20.8-1.5], bottom=[0,pic_ex,0,2], top=[0,pic_ex]);
translate([0, 81.5-15/2-3, 1.5])
cube_fillet([pic_ex+wall, 2.5, 20.8-1.5], bottom=[0,pic_ex,0,2], top=[0,pic_ex]);
}
}
module lip_guide(l) {
guide_offset = 0.2; // how much to recess the edge guides
guide_h = 1.2; // how tall above the edge to extend
linear_extrude(height=l) polygon([
[0,-e], [wall+guide_offset,-e], [0, wall+guide_offset],
[-guide_h, wall+guide_offset], [-guide_h, guide_offset],
[0, guide_offset]
]);
}
module hm43_bottom_lips(split) {
translate([wall, wall, split+wall_t]) {
// bottom locklip (positive)
translate([0,d,0]) {
locklip_p(28, insert_inset=[0,0]);
translate([w-34,0,0]) locklip_p(34-wall, insert_inset=[0,0]);
}
// front guide lip (left, mid, right)
translate([body_corner_radius, 0, 0])
rotate([0,90]) lip_guide(12);
translate([w/2-9, 0, 0])
rotate([0,90]) lip_guide(25);
translate([w-body_corner_radius-12, 0, 0])
rotate([0,90]) lip_guide(12);
// left guide lip assortment
translate([0, d_off+5.25+9.4/2, 0])
rotate([-90]) rotate(90) mirror([0,1,0]) lip_guide(25.25-5.25-9.4/2-16.7/2);
if (Pi_Model == "Zero" || Pi_Model == "1A+" || Pi_Model == "3A+")
translate([0, d_off+40, 0])
rotate([-90]) rotate(90) mirror([0,1,0]) lip_guide(45);
else if (Pi_Model == "3B/2B/1B+") {
*translate([-pic_ex, d_off+52, 0])
rotate([-90]) rotate(90) mirror([0,1,0]) lip_guide(3.5);
*translate([-pic_ex, d_off+70, 0])
rotate([-90]) rotate(90) mirror([0,1,0]) lip_guide(3.5);
}
}
// probe side guide lip
translate([wall+w, wall+d-45, probe_centerline+wall_t])
rotate([-90]) rotate(90) lip_guide(40);
}
module mouseears() {
me_h = MouseEarHeight;
me_d = 20;
me_overlap = wall;
me_outset_bottom = (me_d/2 - body_corner_radius/4 - body_chamfer_height_b - me_overlap) * 0.707;
me_outset_top = (me_d/2 - body_corner_radius/4 - body_chamfer_height_t - me_overlap) * 0.707;
// Bottom outside corners
if (Pieces != "Top") {
translate([-me_outset_bottom, d+2*wall+me_outset_bottom, 0])
cylinder(me_h, d=me_d, $fn=24);
translate([w+2*wall+me_outset_bottom, d+2*wall+me_outset_bottom, 0])
cylinder(me_h, d=me_d, $fn=24);
}
// top outside corners
if (Pieces != "Bottom") {
translate([0,-1,me_h]) rotate([180]) {
translate([w+2*wall+me_outset_top, d+2*wall+me_outset_top, 0])
cylinder(me_h, d=me_d, $fn=24);
translate([-me_outset_top, d+2*wall+me_outset_top, 0])
cylinder(me_h, d=me_d, $fn=24);
}
}
// common corner area
translate([-me_outset_bottom/0.707, 0, 0])
cylinder(me_h, d=me_d, $fn=24);
translate([w+2*wall+me_outset_bottom/0.707, 0, 0])
cylinder(me_h, d=me_d, $fn=24);
}
module mouseleg(isBottom) {
MouseLegWidth = 2*0.63;
if (isBottom)
translate([body_chamfer_height_b+0.3, -MouseLegWidth/2, 0])
cube([body_corner_radius+body_chamfer_height_b, MouseLegWidth, MouseLegHeight]);
else
translate([body_chamfer_height_t+0.3, -MouseLegWidth/2, h_b+2*wall_t-MouseLegHeight])
cube([body_corner_radius+body_chamfer_height_t, MouseLegWidth, MouseLegHeight]);
}
module mouselegs(isBottom) {
translate([body_chamfer_height_t+body_corner_radius/2,
body_chamfer_height_t+body_corner_radius/2, 0])
rotate(-135) mouseleg(isBottom);
translate([w+2*wall-body_chamfer_height_t-body_corner_radius/2,
body_chamfer_height_t+body_corner_radius/2, 0])
rotate(-45) mouseleg(isBottom);
translate([w+2*wall-body_chamfer_height_t-body_corner_radius/2,
d+2*wall-body_chamfer_height_t-body_corner_radius/2, 0])
rotate(45) mouseleg(isBottom);
translate([body_chamfer_height_t+body_corner_radius/2,
d+2*wall-body_chamfer_height_t-body_corner_radius/2, 0])
rotate(135) mouseleg(isBottom);
}
module split_volume() {
if (Pi_Model == "3B/2B/1B+") {
difference() {
translate([-pic_ex-1,-1,-1])
cube([w+pic_ex+2*wall+2, d+2*wall+2, wall_t+case_split+1]);
translate([w,0,wall_t+probe_centerline])
cube([3*wall, d+2*wall+2*e, wall_t+probe_centerline+e]);
}
}
else
translate([-w,-d,-e])
cube([3*w, 3*d, wall_t+probe_centerline+2*e]);
}
module hm43_split() {
// bottom
if (Pieces != "Top") translate([0,4,0]) {
intersection() {
hm43();
split_volume();
}
if (Pi_Model == "3B/2B/1B+")
hm43_bottom_lips(case_split);
else
hm43_bottom_lips(probe_centerline);
if (MouseLegHeight > 0.0) mouselegs(true);
} // if include bottom
// top
if (Pieces != "Bottom") {
translate([0,-1,h_b+2*wall_t]) rotate([180]) {
difference() {
hm43();
//translate([11,5,h_b+2*wall_t-0.24]) linear_extrude(0.5)
// text("HeaterMeter", font = "Liberation Sans:style=Bold Italic");
split_volume();
}
if (MouseLegHeight > 0.0) mouselegs(false);
}
} // if include top
if (MouseEarHeight > 0.0)
color("silver") mouseears();
}
/********************** **********************/
/********************** END OF CASE / LIBRARY FOLLOWS **********************/
/********************** **********************/
module cube_bchamfer(dim, r, top=0, bottom=0, $fn=$fn) {
// bottom beaded area
if (bottom != 0) hull(){
translate([r,r,0]) cylinder(bottom, r1=r-bottom, r2=r, $fn=$fn);
translate([dim[0]-r,r,0]) cylinder(bottom, r1=r-bottom, r2=r, $fn=$fn);
translate([r,dim[1]-r,0]) cylinder(bottom, r1=r-bottom, r2=r, $fn=$fn);
translate([dim[0]-r,dim[1]-r,0]) cylinder(bottom, r1=r-bottom, r2=r, $fn=$fn);
}
// center
translate([0,0,bottom]) hull(){
translate([r,r,0]) cylinder(dim[2]-top-bottom, r=r, $fn=$fn);
translate([dim[0]-r,r,0]) cylinder(dim[2]-top-bottom, r=r, $fn=$fn);
translate([r,dim[1]-r,0]) cylinder(dim[2]-top-bottom, r=r, $fn=$fn);
translate([dim[0]-r,dim[1]-r,0]) cylinder(dim[2]-top-bottom, r=r, $fn=$fn);
}
// top beaded area
if (top != 0) translate([0,0,dim[2]-top]) hull(){
translate([r,r,0]) cylinder(top, r2=r-top, r1=r, $fn=$fn);
translate([dim[0]-r,r,0]) cylinder(top, r2=r-top, r1=r, $fn=$fn);
translate([r,dim[1]-r,0]) cylinder(top, r2=r-top, r1=r, $fn=$fn);
translate([dim[0]-r,dim[1]-r,0]) cylinder(top, r2=r-top, r1=r, $fn=$fn);
}
}
module fillet(radius, height=100, $fn=$fn) {
if (radius != undef && radius > 0) {
//this creates acutal fillet
translate([-radius, -radius, -height / 2 - 0.02]) difference() {
cube([radius * 2, radius * 2, height + 0.04]);
if ($fn == 0 && (radius == 2 || radius == 3 || radius == 4)) {
cylinder(r=radius, h=height + 0.04, $fn=4 * radius);
} else {
cylinder(r=radius, h=height + 0.04, $fn=$fn);
}
}
}
}
module cube_fillet(size, radius=-1, vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], center=false, $fn=4){
if (center) {
cube_fillet_inside(size, radius, vertical, top, bottom, $fn);
} else {
translate([size[0]/2, size[1]/2, size[2]/2])
cube_fillet_inside(size, radius, vertical, top, bottom, $fn);
}
}
module cube_negative_fillet(size, radius=-1, vertical=[3,3,3,3], top=[0,0,0,0], bottom=[0,0,0,0], $fn=$fn){
j=[1,0,1,0];
fn_V = $fn[0] == undef ? $fn : $fn[0];
fn_T = $fn[1] == undef ? $fn : $fn[1];
fn_B = $fn[2] == undef ? $fn : $fn[2];
for (i=[0:3]) {
if (radius > -1) {
rotate([0, 0, 90*i]) translate([size[1-j[i]]/2, size[j[i]]/2, 0]) fillet(radius, size[2], fn_V);
} else {
rotate([0, 0, 90*i]) translate([size[1-j[i]]/2, size[j[i]]/2, 0]) fillet(vertical[i], size[2], fn_V);
}
rotate([90*i, -90, 0]) translate([size[2]/2, size[j[i]]/2, 0 ]) fillet(top[i], size[1-j[i]], fn_T);
rotate([90*(4-i), 90, 0]) translate([size[2]/2, size[j[i]]/2, 0]) fillet(bottom[i], size[1-j[i]], fn_B);
}
}
module cube_fillet_inside(size, radius=-1, vertical=[3,3,3,3], top=[0,0,0,0], bottom=[0,0,0,0], $fn=$fn){
//makes CENTERED cube with round corners
// if you give it radius, it will fillet vertical corners.
//othervise use vertical, top, bottom arrays
//when viewed from top, it starts in upper right corner (+x,+y quadrant) , goes counterclockwise
//top/bottom fillet starts in direction of Y axis and goes CCW too
if (radius == 0) {
cube(size, center=true);
} else {
difference() {
cube(size, center=true);
cube_negative_fillet(size, radius, vertical, top, bottom, $fn);
}
}
}
//cube_fillet([10,10,10]);