snappy-reprap/rails_90deg_joint_part.scad

include <config.scad>
use <GDMUtils.scad>
use <joiners.scad>
use <tslot.scad>


module rails_90deg_joint()
{
	joiner_length=10;
	base_height = rail_height+roller_thick;
	endstop_delta = platform_length - base_height;

	difference() {
		union() {
			difference() {
				union() {
					// Bottom.
					translate([0,platform_length/2,rail_thick/2]) yrot(90)
						sparse_strut(h=rail_width, l=platform_length, thick=rail_thick, maxang=45, strut=10, max_bridge=500);

					// Lower Back.
					translate([0,rail_thick/2,rail_height/2]) zrot(90) {
						thinning_wall(h=rail_height, l=rail_width-joiner_width, thick=rail_thick, strut=rail_thick);
					}

					// Upper Back.
					translate([0, rail_thick/2, rail_height+(platform_length-rail_height-rail_thick)/2]) zrot(90) {
						thinning_wall(h=platform_length-rail_height+rail_thick, l=rail_width-joiner_width, thick=rail_thick, strut=rail_thick);
					}

					// Side Walls
					grid_of(xa=[-(rail_spacing/2+joiner_width/2), (rail_spacing/2+joiner_width/2)]) {
						// Upper Walls.
						grid_of(
							ya=[rail_height/2],
							za=[(platform_length-rail_height-joiner_length)/2+rail_height]
						) {
							thinning_wall(h=platform_length-joiner_length-rail_height+2*rail_thick, l=rail_height, thick=joiner_width, strut=rail_thick, bracing=false);
						}

						// Lower Walls.
						grid_of(
							ya=[(platform_length-rail_height-joiner_length)/2+rail_height],
							za=[rail_height/2]
						) {
							thinning_wall(l=platform_length-joiner_length-rail_height+2*rail_thick, h=rail_height, thick=joiner_width, strut=rail_thick, bracing=false);
						}

						// Corner Walls.
						grid_of(
							ya=[rail_height/2],
							za=[rail_height/2]
						) {
							thinning_wall(l=rail_height, h=rail_height, thick=joiner_width, strut=rail_thick, bracing=false);
						}

						// Rail tops.
						translate([0, rail_height, rail_height]) {
							translate([0, (platform_length-rail_height)/2, roller_thick/2])
								cube(size=[joiner_width, platform_length-rail_height, roller_thick], center=true);
							translate([0, roller_thick/2, (platform_length-rail_height)/2])
								cube(size=[joiner_width, roller_thick, platform_length-rail_height], center=true);
						}
					}
				}

				// Clear space out near front clips.
				grid_of(
					xa=[-(rail_spacing+joiner_width)/2, (rail_spacing+joiner_width)/2],
					ya=[platform_length],
					za=[(rail_height)/4, (rail_height)*3/4]
				) {
					scale([1, tan(joiner_angle), 1]) xrot(45)
						cube(size=rail_height/2/sqrt(2), center=true);
				}

				// Clear space out near top clips.
				grid_of(
					xa=[-(rail_spacing+joiner_width)/2, (rail_spacing+joiner_width)/2],
					ya=[rail_height/4, rail_height*3/4],
					za=[platform_length]
				) {
					scale([1, 1, tan(joiner_angle)]) xrot(45)
						cube(size=rail_height/2/sqrt(2), center=true);
				}
			}

			// Front Joiner clips.
			translate([0, 0, rail_height/2]) {
				yrot_copies([0, 180]) {
					translate([rail_spacing/2+joiner_width/2, platform_length, 0]) {
						joiner(h=rail_height, w=joiner_width, l=joiner_length, a=joiner_angle);
					}
				}
			}

			// Top Joiner clips.
			translate([0, (rail_height)/2, platform_length]) {
				zrot_copies([0,180]) {
					translate([rail_spacing/2+joiner_width/2, 0, 0]) {
						xrot(90) joiner(h=rail_height, w=joiner_width, l=joiner_length, a=joiner_angle);
					}
				}
			}

			// Motor clip mounts.
			translate([0, rail_height+roller_thick/2-1, 0]) {
				zrot_copies([90, 270]) {
					translate([(43+joiner_width+10)/2, 0, 30]) {
						xrot(90) {
							joiner(h=rail_height, w=joiner_width, l=30, a=joiner_angle);
							translate([0, -30+rail_thick/2, 0])
								cube(size=[joiner_width, rail_thick, rail_width-joiner_width], center=true);
						}
					}
				}
			}

			// Side mount slots.
			translate([0, platform_width/3, 0]) {
				grid_of(ya=[-platform_width/3/2, platform_width/3/2]) {
					zrot_copies([0,180]) {
						translate([rail_width/2-joiner_width/2, 0, 0]) {
							zrot(-90) lock_slot(h=25, wall=3, backing=joiner_width/2-2);
						}
					}
				}
			}

			// Y-axis endstop switch mount
			translate([-(rail_width-4)/2, endstop_delta/2+base_height-0.05, endstop_delta/2+base_height-0.05]) {
				difference() {
					cube(size=[4, endstop_delta+0.05, endstop_delta+0.05], center=true);
					translate([0, endstop_delta/2, endstop_delta/2]) xrot(45)
						cube(size=15, center=true);
					translate([0, endstop_delta/2-5, -endstop_delta/2+15]) {
						grid_of(za=[-5, 5]) {
							yrot(90) {
								cylinder(h=10, r=2.5/2, center=true, $fn=12);
							}
						}
					}
					translate([0, -(endstop_delta/2-15), (endstop_delta/2-5)]) {
						grid_of(ya=[-5, 5]) {
							yrot(90) {
								cylinder(h=10, r=2.5/2, center=true, $fn=12);
							}
						}
					}
				}
			}
		}
	}
}
rails_90deg_joint();



module rails_90deg_joint_point() { // make me
	rails_90deg_joint();
}



rails_90deg_joint_point();



// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap