74 lines
2.5 KiB
OpenSCAD
74 lines
2.5 KiB
OpenSCAD
/**
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* Models and variables according to SFF-8300 specification.
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*
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* @author Joaquín Fernández
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* @url https://gitlab.com/joaquinfq/openscad/blob/master/Modules/Models/SFF/8300.scad
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* @license CC-BY-NC-4.0
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*
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* @see SFF-8300 3.5" Form Factor Drives
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*/
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//----------------------------------------------------------
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use <./box.scad>
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//----------------------------------------------------------
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/**
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* Returns the specifications of the measurements according to SFF-8300.
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*
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* @param {Float} tolerance Tolerance to be used to adjust the measurements.
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* @param {Integer} type Type of unit (0: small, 1: medium, 2: large).
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*
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* @return {Float[]}
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*/
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function sff8300(tolerance = 0, type = 1) = [
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3.00, // Screw diameter
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type == 0 ? 42.00 : (type == 1 ? 26.10 : 17.80) + tolerance,
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147.00 + tolerance,
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101.60 + tolerance,
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95.25 + tolerance,
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3.18,
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44.45 + tolerance / 2,
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41.28 + tolerance / 2,
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28.50 + tolerance / 2,
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101.60 + tolerance / 2,
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6.35 + tolerance / 2,
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0.25,
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0.50,
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76.20 + tolerance / 2
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];
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//----------------------------------------------------------
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/**
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* Draw a model of a 3.5" drive according to the SFF-8300 specification.
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*
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* This model allows the volume to be removed later to create a slot
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* like those used in PC cases.
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*
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* @param {Float} length Length of the drive to be generated.
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* @param {Float} thickness Thickness of the block where the model will be inserted.
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* @param {Float} screw Diameter of the screw to be used.
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* @param {Float} slot Length of the slot where the screws will be inserted.
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* @param {Float} tolerance Value to be used to adjust the standard dimensions.
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* @param {Integer} type Type of unit (0: small, 1: medium, 2: large).
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*/
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module sff8300Model(length = 0, thickness = 5, screw = 0, slot = 15, tolerance = 0.3, type = 0)
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{
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_A = sff8300(tolerance, type);
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modelBox(
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_A[3],
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_A[1],
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length ? length : _A[2],
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thickness,
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screw ? screw : _A[0],
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slot,
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[
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[ _A[10], _A[2] - _A[8] ],
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[ _A[10], _A[2] - _A[8] - _A[9] ]
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],
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[
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[ _A[5], _A[2] - _A[7] ],
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[ _A[5], _A[2] - _A[7] - _A[6] ],
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[ _A[5], _A[2] - _A[7] - _A[13] ],
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[ _A[3] - _A[5], _A[2] - _A[7] ],
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[ _A[3] - _A[5], _A[2] - _A[7] - _A[6] ],
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[ _A[3] - _A[5], _A[2] - _A[7] - _A[13] ]
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]
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);
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} |