209 lines
4.5 KiB
OpenSCAD
209 lines
4.5 KiB
OpenSCAD
// Copyright (C) 2013 Michael McMaster <michael@codesrc.com>
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//
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// This file is part of SCSI2SD.
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//
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// SCSI2SD is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// SCSI2SD is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with SCSI2SD. If not, see <http://www.gnu.org/licenses/>.
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$fa = 3; // 4-times as many angles per circle.
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$fs = 0.1; // 0.1mm accuracy
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// A* taken from SFF-8301 Specification for Form Factor of 3.5" Disk Drives
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A3 = 101.6; // width
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A5 = 3.19; // Distance from side to bottom hole.
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A6 = 44.45; // Distance from A7 to second bottom hole.
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A7 = 41.28; // Distance from front to bottom holes.
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A8 = 28.5; // Distance from front to side holes
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A9 = 101.60; // Distance between side holes.
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A10 = 6.35; // Height from base to site holes.
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A13 = 76.2; // Distance from A7 to third bottom hole.
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m3HoleRadius=2.667/2; // M3x0.50 minimum hole size (aluminium or softer material)
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holeBulk=4; // Extra around holes
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tmp = 10;
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wallWidth = 1.3;
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screwWidth = 3;
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foo = 6;
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bar = 4; // PSOC MOUNT
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PCB_DIFF=90.42; // Clearance line of "fat" via is 10mil from edge.
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PCB_off = (A3 - PCB_DIFF) / 2;
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// from front = A7 + foo = 47.28
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// second = 47.28 + A6 = 91.73. Perfect!
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// Height between board and screw:
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// screwWidth + 1.6mm pcb only = 3 + 1.6 =4.6. Not a problem!
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// Width of PCB vs side hole bulk: 101.6 - 97.5360 = 4.064
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// only 2mm to spare on either side.
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// TODO Made a NOTCH in the PCB to handle this!
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// notch: A8 +- holeBulk = 28.5 - 4, 28.5 + 4 = 24 -> 33mm. 3mm in.
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module hdd_side()
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{
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difference()
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{
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union()
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{
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cube([A8 + A9 + tmp, wallWidth, A10 + holeBulk]);
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// Bottom mount 1
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translate([A7 - (foo / 2), 0, 0])
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{
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cube([foo, foo, screwWidth]);
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}
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// Bottom mount 2
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translate([A6 + A7 - (foo / 2), 0, 0])
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{
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cube([foo, foo, screwWidth]);
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}
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// Bottom mount 3
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translate([A13 + A7 - (foo / 2), 0, 0])
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{
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cube([foo, foo, screwWidth]);
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}
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// psoc mount 1
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translate([A7 - (foo / 2) + foo, 0, 0])
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{
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cube([foo, foo + bar, screwWidth]);
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}
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// psoc mount 2
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translate([A6 + A7 - (foo / 2) + foo, 0, 0])
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{
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cube([foo, foo + bar, screwWidth]);
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}
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// Extra bulk behind side holes
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translate([A8, 0, A10])
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{
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rotate([270, 0, 0])
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{
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cylinder(h=screwWidth, r=holeBulk);
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}
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}
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translate([A8 + A9, 0, A10])
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{
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rotate([270, 0, 0])
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{
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cylinder(h=screwWidth, r=holeBulk);
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}
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}
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}
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// Remove excess material from the side
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translate([-0.5, -0.5,screwWidth + wallWidth])
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{
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cube([A8 - tmp + 0.5, wallWidth + 1, A10 + holeBulk]);
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}
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translate([A8 + tmp, -0.5, screwWidth + wallWidth])
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{
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cube([A9 - (tmp * 2), wallWidth + 1, A10 + holeBulk]);
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}
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// SIDE HOLES
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translate([A8, -0.5, A10])
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{
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rotate([270, 0, 0])
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{
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cylinder(h=screwWidth + 1, r=m3HoleRadius);
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}
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}
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translate([A8 + A9, -0.5, A10])
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{
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rotate([270, 0, 0])
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{
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cylinder(h=screwWidth + 1, r=m3HoleRadius);
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}
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}
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// BOTTOM HOLES
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// Bottom hole 1
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translate([A7, A5, -0.5])
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{
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cylinder(h=screwWidth + 1, r = m3HoleRadius);
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}
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// Bottom hole 2
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translate([A6 + A7, A5, -0.5])
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{
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cylinder(h=screwWidth + 1, r = m3HoleRadius);
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}
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// Bottom hole 3
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translate([A13 + A7, A5, -0.5])
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{
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cylinder(h=screwWidth + 1, r = m3HoleRadius);
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}
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// PSOC hole1
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translate([A7 + foo, PCB_off, -0.5])
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{
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cylinder(h=screwWidth + 1, r = m3HoleRadius);
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}
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// PSOC hole2
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translate([A6 + A7 + foo, PCB_off, -0.5])
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{
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cylinder(h=screwWidth + 1, r = m3HoleRadius);
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}
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}
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}
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union()
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{
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hdd_side();
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translate([0, A3, 0])
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{
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mirror([0, 1, 0])
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{
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hdd_side();
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}
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}
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cube([wallWidth * 2, A3, wallWidth]);
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translate([A8 + A9 + tmp - wallWidth * 2, 0, 0])
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{
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cube([wallWidth * 2, A3, wallWidth]);
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}
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// Bottom hole 1
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translate([A7 + foo, foo + bar, 0])
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{
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cube([wallWidth * 2, A3 - ((foo + bar) * 2), wallWidth]);
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}
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// Bottom hole 2
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translate([A6 + A7 + foo, foo + bar, 0])
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{
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cube([wallWidth * 2, A3 - ((foo + bar) * 2), wallWidth]);
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}
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for (i = [0:3])
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{
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translate([0, (i * (A3 - wallWidth) / 3), 0])
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{
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cube([A8 + A9 + tmp, wallWidth, wallWidth]);
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}
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}
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}
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