diff options
Diffstat (limited to 'enclosure/lyza/lyza_enclosure_v2.scad')
| -rw-r--r-- | enclosure/lyza/lyza_enclosure_v2.scad | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/enclosure/lyza/lyza_enclosure_v2.scad b/enclosure/lyza/lyza_enclosure_v2.scad new file mode 100644 index 0000000..739c42e --- /dev/null +++ b/enclosure/lyza/lyza_enclosure_v2.scad @@ -0,0 +1,233 @@ + +/* A small, arbitrary unit to guard against rounding errors */ +eps = 0.1; +alot = 1000; + +/* Base PCB size */ +pcb_width = 50; +pcb_height = 70; +/* Extra space around PCB */ +pcb_extra = 1; + +/* Offset of screw hole centers from left/right/top/bottom side of board */ +screw_offx_l = 5; +screw_offx_r = 5; +screw_offx_t = 5; +screw_offx_b = 5; + +/* Thickness of bottom, walls, lid (middle sections) */ +bottom_thickness = 2; +wall_thickness = 2; +lid_thickness = 2; + +/* Outside corner radius */ +corner_radius_wall = 3; +corner_radius_lid = 2; + +screw_base_dia = 8; +screw_base_h = 5; +screw_nut_dia = 5.4; +screw_nut_h = 6; +screw_hole_dia = 3.2; +screw_hole_h = 6; +board_thickness = 1.6; +height_above_board = 18; +height_lid_inner = 2; +lid_lip_depth = 2; +lid_lip_width = 2; +lid_lip_extra = 1; + +clamp_tube_dia = screw_base_dia; +clamp_tube_h = 0; //height_above_board+height_lid_inner; +clamp_tube_base_extra = 2; + +screw_head_hole_dia = 6.5; +screw_head_hole_depth = 3; + +module rounded_rect(w, h, r) { + hull(){ + translate([w/2-r, h/2-r]) circle(r); + translate([-(w/2-r), h/2-r]) circle(r); + translate([w/2-r, -(h/2-r)]) circle(r); + translate([-(w/2-r), -(h/2-r)]) circle(r); + } +} + +module shell(thickness, inner_height, inner_extra, radius_horiz) { + d = thickness + inner_height; + rh=radius_horiz; + difference(){ + r = corner_radius_wall; + w = pcb_width+pcb_extra+2*wall_thickness; + h = pcb_height+pcb_extra+2*wall_thickness; + hull() { + translate([0, 0, rh]) linear_extrude(height=d-rh) rounded_rect(w, h, r); + linear_extrude(height=eps) rounded_rect(w-2*rh, h-2*rh, r); + } + + iw = pcb_width+inner_extra; + ih = pcb_height+inner_extra; + translate([-iw/2, -ih/2, bottom_thickness]) cube([iw, ih, h]); + } +} + +module single_screw_base() { + translate([0, 0, bottom_thickness-eps]) linear_extrude(height=screw_base_h+eps) { + circle(d=screw_base_dia); + translate([-screw_base_dia/2, 0]) square([alot, alot]); + translate([0, -screw_base_dia/2]) square([alot, alot]); + } +} + +w = pcb_width; +h = pcb_height; +e = pcb_extra; +l = screw_offx_l; +r = screw_offx_r; +t = screw_offx_t; +b = screw_offx_b; +s1_pos = [w/2-l, h/2-b]; +s2_pos = [-w/2+r, -h/2+t]; +s3_pos = [w/2-l, -h/2+t]; +s4_pos = [-w/2+r, h/2-b]; +module screw_bases() { + intersection() { + union() { + translate(s1_pos) single_screw_base(); + translate(s2_pos) mirror([1,1,0]) single_screw_base(); + translate(s3_pos) mirror([0,1,0]) single_screw_base(); + translate(s4_pos) mirror([1,0,0]) single_screw_base(); + } + cube([w+e+eps, h+e+eps, alot], center=true); + } +} + +module single_screw_hole() { + translate([0, 0, bottom_thickness+screw_base_h+eps]) + mirror([0,0,1]) + union() { + cylinder(h=screw_nut_h+eps, d=screw_nut_dia); + cylinder(h=screw_hole_h+eps, d=screw_hole_dia); + } +} + +module screw_holes() { + translate(s1_pos) single_screw_hole(); + translate(s2_pos) mirror([1,1,0]) single_screw_hole(); + translate(s3_pos) mirror([0,1,0]) single_screw_hole(); + translate(s4_pos) mirror([1,0,0]) single_screw_hole(); +} + +conn_1_y = 12.0; +conn_1_l = 20.0; +conn_1_h = 7; +conn_2_y = conn_1_y+conn_1_l+6.0; +conn_2_l = conn_1_l; +conn_2_h = conn_1_h; +conn_pwr_y = 12.5; +conn_pwr_l = 10.0; +conn_pwr_h = 10; +conn_extra = 1; +module conn_holes() { + e = conn_extra; + translate([0, -e/2, -e/2]) + translate([0, 0, bottom_thickness+screw_base_h+board_thickness]) + translate([-pcb_width/2, -pcb_height/2]) { + translate([-alot, conn_1_y]) cube([alot, conn_1_l+e, conn_1_h+e]); + translate([-alot, conn_2_y]) cube([alot, conn_2_l+e, conn_2_h+e]); + translate([0, conn_pwr_y]) cube([alot, conn_pwr_l+e, conn_pwr_h+e]); + } +} + +module base() { + difference() { + union() { + screw_bases(); + shell(bottom_thickness, + screw_base_h + board_thickness + height_above_board, + pcb_extra, + radius_horiz=0); + } + screw_holes(); + conn_holes(); + } +} + +module single_clamp_stud_part(liph, clamp_tube_h, extra) { + translate([0, 0, lid_thickness-eps]) union() { + cylinder(h=clamp_tube_h, d=clamp_tube_dia+extra); + linear_extrude(height=liph+eps) { + translate([-clamp_tube_dia/2-extra/2, 0]) square([alot, alot]); + translate([0, -clamp_tube_dia/2-extra/2]) square([alot, alot]); + } + } +} + +module single_clamp_stud(liph) { + e = clamp_tube_base_extra; + single_clamp_stud_part(liph, liph+eps, e); + single_clamp_stud_part(liph, clamp_tube_h, 0); +} + +module lid_screw_hole() { + cylinder(h=alot, d=screw_hole_dia); + cylinder(h=screw_head_hole_depth+eps, d=screw_head_hole_dia); +} + +module lid() { + e = lid_lip_extra; + iw = pcb_width+pcb_extra-e+eps; + ih = pcb_height+pcb_extra-e+eps; + liph = lid_lip_depth+height_lid_inner; + difference() { + union() { + shell(lid_thickness, + height_lid_inner, + inner_extra=-eps, + radius_horiz=corner_radius_lid); + difference() { + translate([-iw/2, -ih/2, lid_thickness-eps]) cube([iw, ih, liph+eps]); + // FIXME translate([-iw/2+e/2, -ih/2+e/2, lid_thickness-eps]) cube([iw-e, ih-e, liph+2*eps]); + } + intersection() { + translate([-iw/2, -ih/2, lid_thickness-eps]) cube([iw, ih, alot]); + union() { + translate(s1_pos) single_clamp_stud(liph); + translate(s2_pos) mirror([1,1,0]) single_clamp_stud(liph); + translate(s3_pos) mirror([0,1,0]) single_clamp_stud(liph); + translate(s4_pos) mirror([1,0,0]) single_clamp_stud(liph); + } + } + } + translate([0, 0, -eps]) { + translate(s1_pos) lid_screw_hole(); + translate(s2_pos) lid_screw_hole(); + translate(s3_pos) lid_screw_hole(); + translate(s4_pos) lid_screw_hole(); + } + } +} + +module enclosure() { + + + intersection() { + //translate([-pcb_width, -40, 0]) cube (35, 20, 20); + translate([-pcb_width-15, 0, 0]) base(); + }; + +/* + intersection() { + //translate([-alot/2, -10, -alot/2]) cube ([alot, 20, alot]); + union () { + render() lid(); + render() translate([0,0,eps]) mirror([0,0,1]) intersection() { + translate([-alot/2, -alot/2, 0]) cube([alot, alot, alot]); + translate([0,0,-0.2]) scale([0.3, 0.3, 0.04]) surface("depthmap_03.png", center=true); + }; + }; + }; +*/ +} + +enclosure($fn=25);
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