support_phone_webcam_scanner.scad

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    */
//    
//    
// 3D printed Scanner support that ease book scanning
//
// www.barrel-organ-discovery.org
//
// maintainer: frett27@gmail.com

use <libs/threads-library-by-cuiso-v1.scad>

/*
    toggle the _show_skrew to "true" if you wish to use 3D printed
    skrews 
*/
_show_skrews = false;

// uncomment this to have the best round and circles definitions
//$fe=0.1;

tube_diameter = 12.2;
tube_in_height = 30;

support_tube_thick = 5;

support_base_tube_angle = 20;
support_base_z_offset = 10;


top_inter_tube_axis = 110;
top_tube_height = 30;
linear_top_tube_height = 190;

central_hole = 50;

horizontal_fixture_center_offset = top_inter_tube_axis/2;

play = 1;

skrew_diameter = 10;
skrew_length = 40;
skrew_hole_cut_length = 60;

////////////////////////////////////////////////////////////////////


module skrew() {
    if (_show_skrews) {
    thread_for_screw(diameter=skrew_diameter, length=skrew_length); 
    cylinder(d=4*skrew_diameter/3, h=5, $fn=6);
    }
}

module skrews() {
    for (i=[1:6]) {
        translate([2 * skrew_diameter * i, 0, 0])
        skrew();
    }
}

module tube(din, thick = support_tube_thick, h, only_hole = false, skew_angle=0) {

    if (only_hole) {
        
        translate([0,0,-1])   
            tube_in(din = din, thick = thick, h=h + 2);
        
        translate([0,0,h/2])
        rotate([0,90,skew_angle])
        if (_show_skrews) {
            thread_for_nut(diameter=skrew_diameter, length=skrew_hole_cut_length); 
        } else {
            cylinder(d=skrew_diameter, h=skrew_hole_cut_length);
        }
        
    } else {
        
        difference() {
            cylinder(h = h, d = din + thick * 2);
            union() {
                translate([0,0,-1])   
                tube_in(din = din, thick = thick, h=h + 2);
                
                translate([0,0,h/2])
                rotate([0,90,skew_angle])
                if (_show_skrews) {
                    thread_for_nut(diameter=skrew_diameter, 
                                    length=skrew_hole_cut_length); 
                } else {
                    cylinder(d=skrew_diameter, h=skrew_hole_cut_length);
                }
        
                
        
            }
        }
        
    }
}

// test
//tube(din =tube_diameter, h= tube_in_height);


module tube_in(din, thick = 3, h) {
    cylinder(h= h + 2, d=din);
}


module corner() {

    difference() {
            hull() 
                {
                // base tubes
                union() {
                    // 1
                    rotate([0,-90 + support_base_tube_angle])
                    translate([0,0,support_base_z_offset])
                    tube(din = tube_diameter, h = tube_in_height
                        ,skew_angle = 90);

                    // 2
                    rotate([0,-90 - support_base_tube_angle])
                    translate([0,0,support_base_z_offset])
                    tube(din = tube_diameter, h = tube_in_height,
                            skew_angle = 90);
                }
                   
                    
                

                // top tubes

                translate([0,0,horizontal_fixture_center_offset])
                translate([0,top_tube_height /2,0])
                rotate([90,0,0])
                tube(din = tube_diameter, h = top_tube_height);



                translate([0,0,-horizontal_fixture_center_offset])
                translate([0,top_tube_height /2,0])
                rotate([90,0,0])
                tube(din = tube_diameter, h = top_tube_height);


            }
            
             union() {
                 
                 // 1
                 // back holes
                 rotate([0,-90 + support_base_tube_angle])
                 translate([0,0,support_base_z_offset])
                tube(din = tube_diameter, h = tube_in_height, only_hole = true, skew_angle = 90);
                
                 // 2
                rotate([0,-90 - support_base_tube_angle])
                 translate([0,0,support_base_z_offset])
                tube(din = tube_diameter, h = tube_in_height, 
                        only_hole = true, skew_angle = 90);
                 
                 
                 // front holes

                translate([0,0,horizontal_fixture_center_offset])
                translate([0,tube_in_height /2,0])
                rotate([90,0,0])
                tube(din = tube_diameter, h = tube_in_height, only_hole = true);



                translate([0,0,-horizontal_fixture_center_offset])
                translate([0,tube_in_height /2,0])
                rotate([90,0,0])
                tube(din = tube_diameter, h = tube_in_height, only_hole = true);
                        
                    }

    }
}



module linear_support() {
 
    difference() {
        hull() {

                    translate([0,0,horizontal_fixture_center_offset])
                    translate([0,linear_top_tube_height /2,0])
                    rotate([90,0,0])
                    tube(din = tube_diameter, h = linear_top_tube_height);



                    translate([0,0,-horizontal_fixture_center_offset])
                    translate([0,linear_top_tube_height /2,0])
                    rotate([90,0,0])
                    tube(din = tube_diameter, h = linear_top_tube_height);
        }
        
        union() {
        
        
                translate([0,0,horizontal_fixture_center_offset])
                translate([0,linear_top_tube_height /2,0])
                rotate([90,0,0])
                tube(din = tube_diameter, h = linear_top_tube_height, only_hole=true);
            
                translate([0,0,-horizontal_fixture_center_offset])
                translate([0,linear_top_tube_height /2,play])
                rotate([90,0,0])
                union() {
                    tube(din = tube_diameter, h = linear_top_tube_height, only_hole = true);
                    translate([-tube_diameter/2,-tube_diameter,0])
                    cube(size = [tube_diameter,tube_diameter,  linear_top_tube_height]);
                }
        }
    }
}

usable_distance = top_inter_tube_axis - tube_diameter - 4 * support_tube_thick;
echo("usable distance ");
echo(usable_distance);

module managed_linear_support() {
    
    difference() 
    {
        linear_support();
        union() {
            translate([support_tube_thick,0,0])
            cube([tube_diameter + 2*support_tube_thick , 2*linear_top_tube_height, usable_distance], center=true);
            
            // central hole
            rotate([0,-90,0])
            cylinder(d=central_hole,h=tube_diameter);
            
            
            translate([support_tube_thick,-linear_top_tube_height * 1 /5,0])
            cube([tube_diameter + 2*support_tube_thick , 
                    linear_top_tube_height * 1 /5, 
                    usable_distance * 2], center=true);
            
            
            translate([support_tube_thick,+linear_top_tube_height * 1 /5,0])
            cube([tube_diameter + 2*support_tube_thick , 
                    linear_top_tube_height * 1 /5, 
                    usable_distance * 2], center=true);
            
            
            
        }

    }
    
    
}

////////////////////////////////////////////////////////////////
// Printed parts - Section
//
//    This section create the unique parts of the assembly
//
//
//

// corner();

// managed_linear_support();

// skrews();


////////////////////////////////////////////////////////////////
// Assembly - Section - used for previewing elements

top_mid_distance_assembly = top_inter_tube_axis*2;

// length of the base tubes
base_tube_length = 380 / cos(support_base_tube_angle) ;

module assembly() {

    translate([0,-top_mid_distance_assembly,0])
    corner();

    mirror([0,1,0]) {

    translate([0,-top_mid_distance_assembly,0])
    corner();
    }

    managed_linear_support();
}


module assembly_half_configuration() {
    
    translate([0,-top_mid_distance_assembly,0])
    corner();

    managed_linear_support();
}

module horizontal_tubes() {
    rotate([90,0,0]) {
        translate([0,-horizontal_fixture_center_offset,-top_mid_distance_assembly])
        cylinder(d=tube_diameter,h = 2*top_mid_distance_assembly);

        translate([0,horizontal_fixture_center_offset,-top_mid_distance_assembly])
        cylinder(d=tube_diameter,h = 2*top_mid_distance_assembly);

    }
}


module vertical_tubes() {
    rotate([0,-90 + support_base_tube_angle])
                    translate([0,0,support_base_z_offset])
    cylinder(d=tube_diameter,h = base_tube_length);
     rotate([0,-90 - support_base_tube_angle])
                    translate([0,0,support_base_z_offset])
    cylinder(d=tube_diameter,h = base_tube_length);
}


module assembly_vertical_tubes() {
    translate([0,top_mid_distance_assembly,0])
   vertical_tubes(); 
    translate([0,-top_mid_distance_assembly,0])
   vertical_tubes();    
}


module assembly_half_vertical_tubes() {
    translate([0,-top_mid_distance_assembly,0])
   vertical_tubes();    
}



// uncomment this block below to see the assembly and simulating tubes

rotate([0,-90,0]) {
    assembly();
    horizontal_tubes();
    assembly_vertical_tubes();
}


// half configuration
/*
rotate([0,-90,0]) {
    assembly_half_configuration();
    translate([0,-100,0])
    horizontal_tubes();
    assembly_half_vertical_tubes();
}
*/