wall = 1.5; // generic wall thickness
// 18650 is ~18mm diameter, ~65mm length,
-batt_diam = 18 + 1.0;
+batt_diam = 18 + 0.8;
batt_len = 65 + 2.0;
-cable_sep = 2;
+cable_sep = 1.5;
// front flat area
front_flat_len = batt_len + 4*wall + 2*cable_sep;
pcb_width = 11 + 0.5; // width of the board
pcb_thick = 1.2 + 0.3; // thickness of the board
pcb_comp_h = 2.2; // height of the components on board
+pcb_comp_h2 = 4.5; // height of the components on board - component side
pcb_groove = 1;
-body_top_h = 0.35 * batt_diam; // cube-shaped part of the body
+body_top_h = 0.38 * batt_diam; // cube-shaped part of the body
-wire_thick = 2.2;
+wire_thick = 2.5;
wire_sep = 3.5;
-batt_end_h = wire_sep/2 + wire_thick/2 + 1.5;;
-
lid_sep = 0.2; // the lid is made this much smaller to separate from the body
-sw_diam = 2.5 + 0.5;
+// sw_diam = 2.5 + 0.5;
+sw_diam = 3.5 + 0.5;
led_diam = 3 + 0.5;
sw_xoff = 250 * 25.4/1000; // x offset of microswitches
pcb_xoff = 90 * 25.4/1000; // offset of the LED from the middle of the PCB
clip_pretension = 0.5;
+plus_width = 4.5; // width of the + sign
+
+batt_contact_w = 12;
+batt_contact_h = 14;
+batt_contact_h_lid = batt_contact_h-2;
+clip_cyl_r = 0.7;
+batt_end_h = body_top_h - 4*clip_cyl_r;;
+
+
module case_body() {
hull() {
translate([-batt_len/2-2*wall-cable_sep, -batt_diam/2-wall, 0])
translate([-infty/2, -infty/2, eps]) cube(infty);
};
translate([-front_flat_len/2,
- batt_diam/2 - pcb_width,
- -batt_diam/2-2*pcb_comp_h-pcb_thick-wall])
- cube([front_flat_len, pcb_width+wall, eps]);
+ batt_diam/2 - pcb_width-0.5*wall,
+ -batt_diam/2-pcb_comp_h-pcb_comp_h2-pcb_thick-wall])
+ cube([front_flat_len, pcb_width+1.5*wall, eps]);
};
// mounting cylinders
for (x = [-1, 1]) translate([x*(batt_len/2-mounthole_w/2),
batt_diam/2+wall, 0]) {
- translate([0, 0, -batt_diam/2-wall-2*pcb_comp_h-pcb_thick])
+ translate([0, 0, -batt_diam/2-wall-pcb_comp_h-pcb_comp_h2-pcb_thick])
mount_cyl(); // front
translate([0, 0, body_top_h]) // rear
scale([1, 1, -1])
// upper cube-shaped part
// rotate([20, 0, 0])
translate([-batt_len/2, -batt_diam/2, 0])
- cube([batt_len, batt_diam, batt_diam]);
-
+ cube([batt_len, batt_diam, batt_end_h+eps]);
+ // upper longer cube-shaped part
+ difference() {
+ translate([-batt_len/2-cable_sep-wall, -batt_diam/2, batt_end_h])
+ cube([batt_len+2*cable_sep+2*wall, batt_diam, batt_diam]);
+ // clips
+ for (x = [-1,1]) scale([1, x, 1])
+ translate([batt_len/6, batt_diam/2, batt_end_h + 3*clip_cyl_r])
+ rotate([0, -90, 0])
+ cylinder(r = clip_cyl_r, h = batt_len/3, $fn=4);
+ }
+ // grabbing holes
+ for (x=[-1,1]) scale([x,1,1])
+ translate([batt_len/2 + 2*wall + cable_sep+10-wall, 0, 0])
+ cylinder(r1 = 7, r2 = 10, h = body_top_h + eps);
// battery cylinder for the lower part
translate([-batt_len/2, 0, 0])
rotate([0, 90, 0])
-pcb_width+batt_diam/2,
-batt_diam/2-outcable_h])
cube([outcable_w, infty, outcable_h]);
- // hole under the PCB
+ // hole under the PCB (groove)
translate([-pcb_len/2+pcb_groove-pcb_xoff,
batt_diam/2-pcb_width + pcb_groove,
- -batt_diam/2-pcb_thick - 2*pcb_comp_h])
+ -batt_diam/2-pcb_thick - pcb_comp_h - pcb_comp_h2])
cube([pcb_len-2*pcb_groove, pcb_width-2*pcb_groove,
- batt_diam/2 + pcb_thick + pcb_comp_h + eps]);
+ batt_diam/2 + pcb_thick + pcb_comp_h2 + eps]);
+ // hole under the PCB (pcb-width)
+ translate([-pcb_len/2+2*pcb_groove-pcb_xoff,
+ batt_diam/2-pcb_width,
+ -batt_diam/2-pcb_thick - pcb_comp_h - pcb_comp_h2])
+ cube([pcb_len-4*pcb_groove, pcb_width,
+ batt_diam/2 + pcb_thick + pcb_comp_h2 + eps]);
// hole for prog connector
translate([pcb_len/2-pcb_xoff-pcb_groove-eps,
batt_diam/2-pcb_width/2-prg_width/2,
- -batt_diam/2-pcb_thick - 2*pcb_comp_h])
+ -batt_diam/2-pcb_thick - pcb_comp_h - pcb_comp_h2])
difference() {
cube([prg_len+pcb_groove+eps, prg_width,
batt_diam/2 + pcb_thick + pcb_comp_h + eps]);
- translate([prg_len/2+pcb_groove, -eps, pcb_comp_h])
+ translate([prg_len/2+pcb_groove, -eps, pcb_comp_h2])
cube([prg_len/2+eps, prg_width+2*eps, pcb_thick]);
};
- // LED hole
+ // LED and button holes
translate([0, batt_diam/2-pcb_width/2, -infty/2]) {
cylinder(r=led_diam/2, h=infty, $fn=6);
translate([sw_xoff, 0, 0])
translate([-sw_xoff, 0, 0])
cylinder(r=sw_diam/2, h=infty, $fn=6);
};
- // space under the wire holes for battery contacts
- translate([-batt_len/2-2*wall-cable_sep-eps, 0, 0])
- difference() {
- rotate([0, 90, 0])
- cylinder(r = batt_diam/2-wall, h = batt_len + 4*wall + 2*cable_sep + 2*eps);
- translate([-infty/2, -infty/2, -batt_end_h])
- cube(infty);
- };
- // space above the wire holes for battery contacts
- translate([-batt_len/2-2*wall-cable_sep-eps, -batt_diam/2, batt_end_h])
- cube([batt_len + 4*wall + 2*cable_sep + 2*eps,
- batt_diam,
- batt_end_h]);
- // wire holes for battery contacts
- for (x = [-1, 1])
- for (y = [-1, 1])
- translate([-batt_len/2-wall-eps, x*wire_sep/2, y*wire_sep/2])
- rotate([0, 90, 0])
- cylinder(r = wire_thick/2, h = batt_len + 2*wall + 2*eps, $fn=6);
// wire hole from PCB to battery contacts
- // translate([-batt_len/2-wall-eps, 0, -batt_diam/2-pcb_comp_h + wire_thick/2])
- rotate([40, 0, 0])
- translate([-batt_len/2-wall-eps, 0, -batt_diam/2 - wall/2 - wire_thick/2])
- rotate([0, 90, 0])
- cylinder(r = wire_thick/2, h = batt_len + 2*wall + 2*eps, $fn=6);
- // hole behind the battery contacts
- for(x=[1, -1])
- scale([x, 1, 1]) translate([batt_len/2+wall, 0, 0]) hull() {
- translate([0, -batt_diam/2, 0])
- cube([wall + cable_sep + eps, batt_diam, infty]);
- rotate([0, 90, 0])
- cylinder(r = batt_diam/2, h = wall+cable_sep+eps);
- translate([0, batt_diam/2 - pcb_width,
- -batt_diam/2-pcb_comp_h-pcb_thick])
- cube([wall + cable_sep + eps, pcb_width, eps]);
- translate([cable_sep, batt_diam/2 - pcb_width + wall,
- -batt_diam/2-pcb_comp_h-pcb_thick-wall])
- cube([wall + eps, pcb_width-2*wall, eps]);
- };
- // cable lead to battery contacts
- for (x=[1, -1]) scale([x, 1, 1])
- rotate([-140, 0, 0])
- translate([batt_len/2+wire_thick/2, 0, batt_diam/2-2.7])
- cylinder(r=wire_thick/2, h = 5.4);
-
+ rotate([-48, 0, 0])
+ translate([-batt_len/2-wall-cable_sep, 0, -wire_thick/2-wall/2])
+ cube([batt_len + 2*wall + 2* cable_sep, batt_diam/2 + wire_thick + wall, wire_thick]);
// mounting holes
for(x=[-1,1]) scale([x, 1, 1])
translate([batt_len/2-mounthole_w/2, batt_diam/2+wall+mounthole_h/2, -infty/2])
scale([1, mounthole_h/mounthole_w, 1])
cylinder(r = mounthole_w/2, h = infty);
- };
- // clip barrier
- for (x = [-1, 1]) scale([x, 1, 1]) hull () {
- translate([batt_len/2+wall-eps, batt_diam/2-pcb_width+wall/2+lid_sep,
- -batt_diam/2-pcb_thick-pcb_comp_h + wall + lid_sep])
- cube([wall+eps, pcb_width-2*wall-2*lid_sep, wall]);
- translate([batt_len/2+wall-eps, batt_diam/2-pcb_width+3*wall/2+lid_sep,
- -batt_diam/2-pcb_thick-pcb_comp_h + 3*wall + lid_sep])
- cube([eps, pcb_width-4*wall-2*lid_sep, eps]);
+ // holes in front of battery contacts
+ for(x=[-1,1]) scale([x, 1, 1])
+ translate([batt_len/2-eps, wall/2-batt_contact_w/2,
+ wall/2-batt_contact_h/2])
+ cube([wall+2*eps, batt_contact_w-wall, infty]);
+ // holes for battery contacts
+ for(x=[-1,1]) scale([x, 1, 1])
+ translate([batt_len/2+wall-eps, -batt_contact_w/2,
+ -batt_contact_h/2])
+ cube([cable_sep+2*eps, batt_contact_w, infty]);
+ // internal plus sign - vertical line
+ translate([-batt_len/2 + 0.5*wall+plus_width/2, -plus_width/2, -batt_diam/2-wall])
+ cube([wall, plus_width, infty]);
+ // internal plus and minus signs - horizontal line
+ for(x=[-1,1]) scale([x, 1, 1])
+ translate([batt_len/2 - wall - plus_width, -wall/2, -batt_diam/2-wall])
+ cube([plus_width, wall, infty]);
+ // button + label
+ scale([-1, 1, 1])
+ translate([sw_xoff + sw_diam/2 + wall/2 + plus_width/2, batt_diam/2-pcb_width/2-plus_width/2, -batt_diam/2-pcb_thick-pcb_comp_h-pcb_comp_h2-wall-eps])
+ cube([wall, plus_width, wall/2]);
+ // button +/- label - horizontal line
+ for (x=[-1, 1]) scale([x, 1, 1])
+ translate([sw_xoff + sw_diam/2 + wall, batt_diam/2-pcb_width/2-wall/2, -batt_diam/2-pcb_thick-pcb_comp_h-pcb_comp_h2-wall-eps])
+ cube([plus_width, wall, wall/2]);
};
};
module lid_body() {
- translate([-batt_len/2 - wall - lid_sep, -batt_diam/2+lid_sep, -batt_diam/2 -wall])
- cube([batt_len + 2*wall + 2*lid_sep, batt_diam-2*lid_sep, batt_diam/2 - batt_end_h + wall - lid_sep]);
- translate([-batt_len/2 - 2*wall - cable_sep, -batt_diam/2 - wall,
- -batt_diam/2-wall])
- cube([batt_len + 4*wall + 2*cable_sep, batt_diam + 2*wall,
- wall + batt_diam/2 - body_top_h - lid_sep]);
- // clip behind the battery contacts
- for(x=[1, -1])
- scale([x, 1, 1]) translate([batt_len/2+wall+lid_sep, 0, 0]) hull() {
- translate([0, -batt_diam/2+lid_sep, -batt_diam/2])
- cube([wall+cable_sep-lid_sep, batt_diam-2*lid_sep, eps]);
- rotate([0, 90, 0])
- cylinder(r = batt_diam/2-lid_sep, h = wall+cable_sep-lid_sep);
- translate([-clip_pretension, batt_diam/2 - pcb_width+lid_sep,
- batt_diam/2+pcb_comp_h+pcb_thick-lid_sep])
- cube([wall+cable_sep-lid_sep, pcb_width-2*lid_sep, eps]);
- translate([cable_sep+wall/2-clip_pretension, batt_diam/2 - pcb_width + 1.5*wall +lid_sep,
- batt_diam/2+pcb_comp_h+pcb_thick+wall/2-lid_sep])
- cube([wall/2-lid_sep, pcb_width-2*wall-2*lid_sep, eps]);
- // rear cone
- translate([cable_sep+wall-lid_sep, 0, -batt_diam/2-wall]) difference() {
- scale([0.5, 1, 1])
- cylinder(r = batt_diam/2 - lid_sep, h = eps);
- translate([-infty, -infty/2, -infty/2]) cube(infty);
- };
- };
-};
+ // outer part
+ hull() {
+ // smaller outermost part
+ translate([-batt_len/2 - wall - cable_sep, -batt_diam/2, -batt_diam/2 - wall])
+ cube([batt_len + 2*wall + 2*cable_sep, batt_diam, eps]);
+ // this part goes above the main body
+ translate([-batt_len/2 - 2*wall - cable_sep, -batt_diam/2-wall, -body_top_h - lid_sep])
+ cube([batt_len + 4*wall + 2*cable_sep, batt_diam+2*wall, eps]);
+ };
+ // the part which goes inside the main body
+ translate([-batt_len/2 - wall - cable_sep + lid_sep, -batt_diam/2+lid_sep, -batt_diam/2 -wall])
+ cube([batt_len + 2*wall + 2*cable_sep - 2*lid_sep, batt_diam-2*lid_sep, batt_diam/2 - batt_end_h + wall - lid_sep]);
+ // clips
+ for (x = [-1, 1]) scale([1, x, 1])
+ translate([batt_len/6, batt_diam/2-lid_sep, - batt_end_h - clip_cyl_r - lid_sep])
+ rotate([0, -90, 0])
+ cylinder(r = clip_cyl_r, h = batt_len/3, $fn=4);
+ // translate([batt_len/2 + wall + cable_sep - lid_sep, batt_diam/2 - lid_sep, -batt_end_h-lid_sep-clip_cyl_r])
+}
module lid() {
difference() {
lid_body();
- translate([-batt_len/2+eps, 0, 0]) rotate([0, 90, 0])
- cylinder(r=batt_diam/2, h=batt_len-2*eps);
- hull() {
- difference() {
- translate([-batt_len/2-cable_sep-wall, 0, 0]) rotate([0, 90, 0])
- cylinder(r=batt_diam/2-wall-lid_sep, h=batt_len+2*wall+2*cable_sep);
- translate([-infty/2, -batt_diam/2, -infty-wire_sep/2-wire_thick/2])
- cube([infty, batt_diam, infty]);
- };
- translate([-batt_len/2-cable_sep-wall, batt_diam/2-pcb_width+0.5*wall+0.5*lid_sep, batt_diam/2 + pcb_comp_h+pcb_thick-wall-lid_sep])
- cube([batt_len + 2*wall + 2* cable_sep, pcb_width-1.5*wall-1.5*lid_sep, eps]);
- };
+ translate([-batt_len/2-lid_sep, 0, 0]) rotate([0, 90, 0])
+ cylinder(r=batt_diam/2 + lid_sep, h=batt_len+2*lid_sep);
+ // holes for battery contacts
+ for(x=[-1,1]) scale([x, 1, 1])
+ translate([batt_len/2+wall-eps, -batt_contact_w/2,
+ -batt_contact_h_lid/2])
+ cube([cable_sep+2*eps, batt_contact_w, infty]);
};
};
translate([0, 15, 0]) case();
translate([0, -15, 0]) rotate([180, 0, 0]) lid();
} else {
- translate([0, 15, batt_diam/2+pcb_thick+2*pcb_comp_h+wall])
+ translate([0, 15, batt_diam/2+pcb_thick+pcb_comp_h+pcb_comp_h2+wall])
case($fn=128);
translate([0, -15, batt_diam/2+wall])
lid($fn=128);
https://www.fi.muni.cz/~kas/git / heater.git / blobdiff