diff options
| -rw-r--r-- | back.scad | 4 | ||||
| -rw-r--r-- | front.scad | 157 | ||||
| -rw-r--r-- | parameters.scad | 55 | ||||
| -rw-r--r-- | side.scad | 31 | ||||
| -rw-r--r-- | tray.scad | 161 |
5 files changed, 210 insertions, 198 deletions
diff --git a/back.scad b/back.scad new file mode 100644 index 0000000..f27b79f --- /dev/null +++ b/back.scad @@ -0,0 +1,4 @@ +use <tray.scad> + +rotate([-90, 0, 0]) +back(); @@ -1,155 +1,4 @@ -include <parameters.scad> +use <tray.scad> -use <rail.scad> -use <hdd.scad> - -// bend radius on hdd inlet -R = 2; - -// size of the core box -W = hdd_width + vrail_width/2; -H = hdd_height + hrail_height; -D = 15; - -// strap dimensions -SW=5; -SH=1.5; - -// dimensions of the SATA power connector -spc_width=25; -spc_height=8.2; - -support_bar_width = 10; - -module back() { - translate([0, 0, 0]) - tray(D, bt=[1], power_hole=true, straps=true); - - for (i = [1:num_hdd_y-1]) - translate([0, 0, i*H]) - tray(D, bt=[-1,1], power_hole=true, straps=true); - - translate([0, 0, (num_hdd_y-1)*H]) - tray(D, bt=[-1], power_hole=true, straps=true); -} - -module front() { - intersection() { - union() { - translate([0, 0, 0*H]) - tray(D, inlet=[1]); - - for (i = [1:num_hdd_y-1]) - translate([0, 0, i*H]) - tray(D); - - translate([0, 0, num_hdd_y*H]) - tray(D, inlet=[-1], rail=false); - } - - translate([0, 0, num_hdd_y*H/2]) - ccube([2*W, D, num_hdd_y*H + hrail_height]); - } -} - -module ccube(x) cube(x, center=true); - -module tray(D, power_hole=true, straps=true, inlet=[-1,1], rail=true, support_bar=true) -//translate([0, D/2, H/2]) -union() { - difference() { - union() { - // horizontal rail - ccube([hdd_width, D, hrail_height]); - - // vertical rails - for (i = [-1,1]) - translate([i*(W/2 - vrail_width/8), 0, 0]) - ccube([vrail_width/4, D, H]); - } - - // round corners for easy hdd insertion - for (i = inlet) - translate([0, 0, i*(hdd_height + hrail_height)/2]) - hdd_inlet(); - - // notches to attach cable strap - if (straps) { - // horizontal strap holes - for (i = [-0.65, -0.12, 0.25, 0.65]) - for (k = [-1, 1]) - translate([i*hdd_width/2, 0, k*(hrail_height/2 - SH/2)]) - strap_hole(); - - // vertical strap holes - for (i = [-1, 1]) - translate([i * (hdd_width/2 + SH/2 - epsilon), 0, -hrail_height]) - rotate([0, 90, 0]) - strap_hole(); - } - - // hole for support bar - if (support_bar) - translate([0, D/4, 0]) - ccube([W, D, support_bar_width]); - - // hole for SATA power connector and cable - if (power_hole) - translate([-hdd_width/2 + 30, 0]) - ccube([spc_width, D, spc_height]); - - // space for rail - if (rail) - for (i = [0:1]) - mirror([i, 0, 0]) - translate([-hdd_width/2 - rail_thickness, -D, hrail_height/2 - rail_thickness]) - rail(); - - // female side connectors - for (i = [-1,1]) - connector_pos(i, -1); - } - - // male side connectors - for (i = [-1,1]) - connector_pos(i, 1); -} - -module connector_pos(lr, gender) -translate([lr*(W/2 + vrail_width/4), -D/2, H*lr*gender*0.3]) -connector(); - -module connector() { - intersection() { - translate([0, 2.5, 0]) ccube([vrail_width-4, 5, 10]); - rotate([45, 0, 0]) ccube([vrail_width-4, 5, 5]); - } -} - -module strap_hole() { - ccube([SW, D, SH]); -} - -module hdd_inlet() - render() - for (i = [0,1]) mirror([i, 0, 0]) - for (j = [0,1]) mirror([0, j, 0]) - for (k = [0,1]) mirror([0, 0, k]) - difference() { - union() { - translate([0, D/2-R, 0]) - cube([hdd_width/2 + R, D, hdd_height/2 + R]); - - cube([hdd_width/2, D/2-R, hdd_height/2]); - }; - - translate([hdd_width/2 + R, D/2-R, 0]) - rotate([0, 0, 0]) - cylinder(r=R, h=H, center=true); - - translate([0, D/2-R, hdd_height/2 + R]) - rotate([0, 90, 0]) - cylinder(r=R, h=W, center=true); - } - -front();
\ No newline at end of file +rotate([90, 0, 0]) +front(); diff --git a/parameters.scad b/parameters.scad index c0291cd..d8b36e3 100644 --- a/parameters.scad +++ b/parameters.scad @@ -2,37 +2,26 @@ // size of the array num_hdd_x = 4; -num_hdd_y = 5; +num_hdd_y = 4; /// PRIMARY DIMENSIONS -// space above hdd available for air flow -cooling_height = 10; +// width of vertical and horizontal bars +vrail_width = 15; +hrail_height = 15; -// thickness of the support bar -bar_thickness = 10; +// depth of front and back +front_depth = 15; +back_depth = 6; // length hdd is standing out to be grabbed -hdd_standout = 25; - -// back connector pole depth and shunt space (only used when multipe -// parts are required to build one pole) -pole_depth = 20; -pole_overlap_shunt = 2; -pole_cable_funnel_width = 3; - -/// METAL PARTS: SCREWS AND RAILS - -// outer diameter of thread rod and nut used for support -rod_diameter = 4; -nut_diameter = 6; -nut_height = 3; +hdd_standout = 15; // dimensions of the L-shaped rail between front and back -rail_width = 15; +rail_width = 20; rail_height = rail_width; -rail_thickness = 1; +rail_thickness = 2; /// HDD SIZE (from spec) @@ -55,29 +44,7 @@ pla_epsilon = 0.1; // dimension of a single hdd tray (hdd + space around) tray_height = hdd_height + max(cooling_height, 2 * bar_thickness + 10 * pla_epsilon); tray_width = hdd_width + bar_thickness; - - -/// PCB DIMENSIONS - -// free space around backplanes -backplane_margin = 1; - -// dimensions of the backplane PCB -backplane_width = tray_width / 2 + 2 * bar_thickness; -backplane_height = tray_height - 2 * backplane_margin; -backplane_thickness = 1.6; - -// offsets of the backplane relative to the hdd -backplane_hoffset = -backplane_margin - bar_thickness/2; -backplane_voffset = backplane_margin; - -// display only: dimensions and offsets of the SATA connector relative -// to the backplane -backplane_con_width = 45; -backplane_con_height = 5; -backplane_con_depth = 10; -backplane_con_hoffset = 5 - backplane_hoffset; -backplane_con_voffset = 15; +tray_length = hdd_length - hdd_standout; /// OPENSCAD HACKS diff --git a/side.scad b/side.scad new file mode 100644 index 0000000..e093b70 --- /dev/null +++ b/side.scad @@ -0,0 +1,31 @@ +include <parameters.scad> + +module side() { + // frame + difference() { + cube([tray_length, num_hdd_y * tray_height, 10], center=true); + side_inner(); + } + + // support + intersection() { + side_inner(); + union() { + for (i = [-1:1]) + for (j = [-2:2]) + translate([0, j*50, 0]) + rotate(i*30) + line(); + } + } + + // TODO: joins +} + +module line() +cube([300, 0.8, 10], center=true); + +module side_inner() +cube([tray_length - 10, num_hdd_y * tray_height - 10, 10], center=true); + +side();
\ No newline at end of file diff --git a/tray.scad b/tray.scad new file mode 100644 index 0000000..9ea7f60 --- /dev/null +++ b/tray.scad @@ -0,0 +1,161 @@ +include <parameters.scad> + +use <rail.scad> +use <hdd.scad> + +// bend radius on hdd inlet +R = 2; + +// size of the core box +W = hdd_width + vrail_width/2; +H = hdd_height + hrail_height; + +// strap dimensions +SW=5; +SH=1.5; + +// dimensions of the SATA power connector +spc_width=25; +spc_height=8.2; + +support_bar_width = 10; + +module front() { + intersection() { + union() { + translate([0, 0, 0*H]) + tray(front_depth, inlet=[1]); + + for (i = [1:num_hdd_y-1]) + translate([0, 0, i*H]) + tray(front_depth); + + translate([0, 0, num_hdd_y*H]) + tray(front_depth, inlet=[-1], rail=false); + } + + translate([0, 0, num_hdd_y*H/2]) + ccube([2*W, front_depth, num_hdd_y*H + hrail_height]); + } +} + +module back() { + intersection() { + union() { + translate([0, 0, 0*H]) + tray(back_depth, inlet=[1], power_hole=false); + + for (i = [1:num_hdd_y-1]) + translate([0, 0, i*H]) + tray(back_depth, power_hole=false); + + translate([0, 0, num_hdd_y*H]) + tray(back_depth, inlet=[-1], rail=false, power_hole=false); + } + + translate([0, 0, num_hdd_y*H/2]) + ccube([2*W, front_depth, num_hdd_y*H + hrail_height]); + } +} + +module ccube(x) cube(x, center=true); + +module tray(D, power_hole=true, straps=true, inlet=[-1,1], rail=true, support_bar=true) +//translate([0, D/2, H/2]) +union() { + difference() { + union() { + // horizontal rail + ccube([hdd_width, D, hrail_height]); + + // vertical rails + for (i = [-1,1]) + translate([i*(W/2 - vrail_width/8), 0, 0]) + ccube([vrail_width/4, D, H]); + } + + // round corners for easy hdd insertion + for (i = inlet) + translate([0, 0, i*(hdd_height + hrail_height)/2]) + hdd_inlet(D); + + // notches to attach cable strap + if (straps) { + // horizontal strap holes + for (i = [-0.65, -0.12, 0.25, 0.65]) + for (k = [-1, 1]) + translate([i*hdd_width/2, 0, k*(hrail_height/2 - SH/2)]) + strap_hole(); + + // vertical strap holes + for (i = [-1, 1]) + translate([i * (hdd_width/2 + SH/2 - epsilon), 0, -hrail_height]) + rotate([0, 90, 0]) + strap_hole(D); + } + + // hole for support bar + if (support_bar) + translate([0, D/4, 0]) + ccube([W, D, support_bar_width]); + + // hole for SATA power connector and cable + if (power_hole) + translate([-hdd_width/2 + 30, 0]) + ccube([spc_width, D, spc_height]); + + // space for rail + if (rail) + for (i = [0:1]) + mirror([i, 0, 0]) + translate([-hdd_width/2 - rail_thickness, -D, hrail_height/2 - rail_thickness]) + rail(); + + // female side connectors + for (i = [-1,1]) + connector_pos(D, i, -1); + } + + // male side connectors + for (i = [-1,1]) + connector_pos(D, i, 1); +} + +module connector_pos(D, lr, gender) +translate([lr*(W/2 + vrail_width/4), -D/2, H*lr*gender*0.3]) +connector(); + +module connector() { + intersection() { + translate([0, 2.5, 0]) ccube([vrail_width-4, 5, 10]); + rotate([45, 0, 0]) ccube([vrail_width-4, 5, 5]); + } +} + +module strap_hole(D) { + ccube([SW, D, SH]); +} + +module hdd_inlet(D) + render() + for (i = [0,1]) mirror([i, 0, 0]) + for (j = [0,1]) mirror([0, j, 0]) + for (k = [0,1]) mirror([0, 0, k]) + difference() { + union() { + translate([0, D/2-R, 0]) + cube([hdd_width/2 + R, D, hdd_height/2 + R]); + + cube([hdd_width/2, D/2-R, hdd_height/2]); + }; + + translate([hdd_width/2 + R, D/2-R, 0]) + rotate([0, 0, 0]) + cylinder(r=R, h=H, center=true); + + translate([0, D/2-R, hdd_height/2 + R]) + rotate([0, 90, 0]) + cylinder(r=R, h=W, center=true); + } + +front();
\ No newline at end of file |