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include <parameters.scad>
use <nipple.scad>
use <rail.scad>
module half() difference() {
union() {
// upper horizontal bar
translate([0, 0, tray_height - bar_thickness])
cube([tray_width / 2, bar_thickness, bar_thickness]);
// vertical bar
cube([bar_thickness/2, bar_thickness, tray_height]);
// lower horizontal bar
cube([bar_thickness/2 + rail_width + pla_epsilon, bar_thickness, bar_thickness]);
// vertical thread bold receiver
translate([0, bar_thickness, tray_height-bar_thickness]) cube([bar_thickness/2, bar_thickness, bar_thickness]);
translate([tray_width/2 - bar_thickness, bar_thickness, tray_height-bar_thickness]) cube([bar_thickness, bar_thickness, bar_thickness]);
// male downward positioning nippel
translate([rail_width, bar_thickness / 2, 0]) nipple();
}
// receiver for rail
translate([bar_thickness/2 - rail_thickness, 0, bar_thickness - rail_thickness])
rail();
// holes for thread rods (horizontal, vertical)
translate([0, bar_thickness / 2, 0])
cylinder(h = tray_height, r = (rod_diameter + pla_epsilon) / 2, $fs=0.1);
translate([0, bar_thickness * 1.5, tray_height - bar_thickness / 2]) rotate([0, 90, 0])
cylinder(h = tray_width / 2, r = (rod_diameter + pla_epsilon) / 2, $fs=0.1);
// hole for nut on the bottom of the vertical rod
translate([0, bar_thickness / 2, 0])
cylinder(h=nut_height, r=nut_diameter/2 + pla_epsilon, $fs=0.1);
// female downward positioning nippel
translate([rail_width, bar_thickness / 2, tray_height]) nipple(pla_epsilon);
}
module front_connector(
border_left = false,
border_right = false,
border_top = false,
border_bottom = false
) {
difference() {
union() {
half(border_right);
mirror() half(border_left);
}
// female leftward positioning nippel
if (!border_left)
translate([-tray_width/2, bar_thickness / 2, tray_height - bar_thickness / 2]) rotate([0, 270, 0]) nipple(pla_epsilon);
}
// male rightward positioning nippel
if (!border_right)
translate([tray_width / 2, bar_thickness / 2, tray_height - bar_thickness / 2]) rotate([0, 270, 0]) nipple();
}
front_connector(border_right=true);
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