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visor.scad
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visor.scad
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// secondsight Visor project
// Copyright 2013 by secondsight.io, Some Rights Reserved.
//
// Main definition of the secondsight visor
// Use dimensions for Galaxy S4
// Dimensions are portrait mode.
phone_width=69.8;
phone_height=136.6;
phone_thickness=7.9;
view_width=65;
view_height=110;
IPD_min=52;
IPD_max=78;
IPD_avg_male=64.7;
IPD_avg_female=62.3;
IPD_avg=63;
// Potentially user-specific data
include <user_params.scad>;
// Choose a variant, only uncomment one.
variant="C";
//variant="D";
// Choose a plate, only uncomment one.
//plate="body";
//plate="optics_support";
//plate="lens_holders";
//plate="full_optics";
plate="assembled";
//plate="test";
overlap=0.1;
strap_width=40;
front_width=126;
height=67;
thick=3;
lens_name="b&l 35 5x";
//lens_name="edmund 25x50";
include <lenses.scad>;
lens=lens_descriptor( lens_name );
include <visor_optics_mount.scad>;
eyes=nominal_eye_phone_distance( lens );
depth=eyes-eye_forehead_offset+forehead_depth;
include <visor_body.scad>;
include <visor_elastic_mount.scad>;
function calc_temple_distance( lens ) = lens_diam(lens)+IPD_max+2*thick+12; // 12 is for optics mount hardware.
function temple_distance( lens ) = max(user_temple_distance,calc_temple_distance( lens ));
function side_slope( width, lens ) = atan2( (width-temple_distance(lens))/2, depth );
// Dispatch to appropriate plate-building code.
//
if( plate == "lens_holders" )
{
optics_lens_holders( lens );
}
else if( plate == "optics_support" )
{
optics_support_plate( height, lens );
}
else if( plate == "full_optics" )
{
full_optics_plate( phone_height, phone_width, lens );
}
else if( plate == "body" )
{
if( variant == "C" )
{
body_plate( phone_height, phone_width, thick )
smooth_body( phone_height, phone_width, depth, thick, temple_distance(lens), forehead_depth, lens_phone_offset(lens)-plate_thick );
}
else if( variant == "D" )
{
body_plate( phone_height, phone_width, thick )
grooved_body( phone_height, phone_width, depth, thick, temple_distance(lens), forehead_depth, lens_phone_offset(lens)-plate_thick );
}
}
else if( plate == "assembled" )
{
if( variant == "C" )
{
assembled_plate( width, height, thick, lens )
smooth_body( phone_height, phone_width, depth, thick, temple_distance(lens), forehead_depth, lens_phone_offset(lens)-plate_thick );
}
else if( variant == "D" )
{
assembled_plate( width, height, thick, lens )
grooved_body( phone_height, phone_width, depth, thick, temple_distance(lens), forehead_depth, lens_phone_offset(lens)-plate_thick );
}
}
else if( plate == "test" )
{
// optics_plate_test();
difference()
{
translate( [0,0,-depth/2-10] ) smooth_body( phone_height, phone_width, depth, thick, temple_distance(lens), forehead_depth, lens_phone_offset(lens)-plate_thick );
translate( [0,0,-depth/2] ) cube( [phone_height, phone_height, depth], center=true );
}
}
// end of plate dispatch
// Test plate for the optics support
module optics_plate_test()
{
difference()
{
translate( [ 0, 0, -32 ] ) {
smooth_body( phone_height, phone_width, depth, thick, temple_distance(lens), forehead_depth, lens_phone_offset(lens)-plate_thick );
if( plate == "assembled" )
{
color( "tan" ) translate( [ 0, 0, lens_phone_offset( lens )-plate_thick] ) front_lens_plate( lens, height, temple_distance( lens ) );
}
}
translate( [ 0, 0,-0.75*phone_height ] ) cube( 1.5*phone_height, center=true );
translate( [ 0, 0, 0.75*phone_height+18 ] ) cube( 1.5*phone_height, center=true );
}
if( plate != "assembled" )
{
translate( [ 0, height+5, 0] ) front_lens_plate( lens, height, temple_distance( lens ) );
}
}
// Put together the plate containing the visor body
// width - front width of the visor
// height - height of the visor
// wall - thickness of the body wall
// child(0) is the definition of the body
module body_plate( width, height, wall )
{
difference()
{
child(0);
translate( [0, height/2, 7] ) rotate( [ 90, 0, 180 ] ) logo();
}
phone_support_ridge( wall, 52, 32, 3 );
}
// Plate showing the assembled visor
// width - front width of the visor
// height - height of the visor
// wall - thickness of the body wall
// lens - lens descriptor
// child(0) is the definition of the body
module assembled_plate( width, height, wall, lens )
{
difference()
{
child(0);
// remove strap mount supports if assembled
both_strap_mounts( temple_distance(lens), depth, wall ) remove_strap_support( wall );
translate( [0, height/2, 7] ) rotate( [ 90, 0, 180 ] ) logo();
}
translate( [ 0, -height/2, 1.5*wall ] ) rotate( [ 180, 0, 0 ] )
color( "goldenrod" ) phone_support_ridge( wall, 52, 32, 3 );
optics_assembled( width, height, lens );
echo( "If this doesn't render correctly, go to advanced preferences and change 'Turn off rendering' to 3000 or greater." );
}
// Plate for printing the lens whole support system
// width - front width of visor
// height - front height of visor
// lens - descriptor for the lenses to use
module full_optics_plate( width, height, lens )
{
translate( [ 0, height, 0 ] ) front_lens_plate( lens, height, temple_distance( lens ) );
translate( [ 0,-height, 0 ] ) lens_plate( lens, height, temple_distance( lens ) );
translate( [ 58, 12, 0] ) holder( lens );
translate( [ 20, -12, 0] ) holder_cap( lens );
translate( [-20, 12, 0] ) holder( lens );
translate( [-58, -12, 0] ) holder_cap( lens );
}
// Plate for printing the lens support plates
// height - front height of visor
// lens - descriptor for the lenses to use
module optics_support_plate( height, lens )
{
translate( [ 0, height/2+5, 0 ] ) front_lens_plate( lens, height, temple_distance( lens ) );
translate( [ 0,-height/2-5, 0 ] ) lens_plate( lens, height, temple_distance( lens ) );
}
// Plate for printing the lens holders
// lens - descriptor for the lenses to use
module optics_lens_holders( lens )
{
translate( [ 35, 35, 0] ) holder( lens );
translate( [ 35,-35, 0] ) holder_cap( lens );
translate( [-35, 35, 0] ) holder( lens );
translate( [-35,-35, 0] ) holder_cap( lens );
}
// Display the optics in it's assembled form
// width - front width of visor
// lens - descriptor for the lenses to use
module optics_assembled( width, height, lens )
{
// tweakable
xoff=IPD_avg/2;
lens_z=lens_phone_offset( lens );
translate( [ 0, 0, lens_z-plate_thick] ) front_lens_plate( lens, height, temple_distance( lens ) );
translate( [ 0, 0, lens_z+rim_thick] ) color( "tan" ) lens_plate( lens, height, temple_distance(lens) );
translate( [xoff, 0, lens_z] ) union()
{
color( "orange" ) translate( [0,0,holder_len+cap_top+fit_gap] ) rotate( [180,0,0] ) holder( lens );
color( "yellowgreen" ) holder_cap( lens );
% translate( [ 0, 0, plate_thick ] ) lens_model( lens );
}
translate( [-xoff, 0, lens_z] ) union()
{
color( "orange" ) translate( [0,0,holder_len+cap_top+fit_gap] ) rotate( [180,0,0] ) holder( lens );
color( "yellowgreen" ) holder_cap( lens );
% translate( [ 0, 0, plate_thick ] ) lens_model( lens );
}
}
// Build the logo to be diffed.
module logo()
{
scale([0.6,0.6,1]) import("secondsight_logo.stl");
}