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139 lines
3.8 KiB
139 lines
3.8 KiB
angle = 10; |
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raise = 10; |
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tunnel_w = 160; |
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tunnel_h = 160; |
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tunnel_t = 10; // tunnel thickness |
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tunnel_s = 40; // tunnel spacing: overlap for screws |
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door_t = 50; // door thickness |
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plexy_t = 6; // thickness of plexy glass sheet |
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gap = 1; // gap between parts moving relative to each other |
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seal = 5; // thickness of seal. May be set to gap |
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guide_h = 40; |
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bearing_inner_dia = 10; |
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bearing_outer_dia = 20; |
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bearing_h = 5; |
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stopper_h = 40; |
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stopper_w = 30; |
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space = bearing_outer_dia; // space between plexy glass sheets |
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// calculations |
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rad = (space+2*plexy_t)/2; |
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sheet_h = tunnel_h-2*seal-rad; |
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// colors |
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plexy = [0.4,0.6,1,0.6]; |
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red = [1,0,0]; |
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green = [0,0.6,0]; |
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silver = [0.7,0.7,0.7]; |
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snow = [1,1,1,0.5]; |
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wood = [0.8,0.3,0]; |
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// constants |
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$fn = 32; |
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rx = [90,0,0]; // rotate 90 deg around x |
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ry = [0,90,0]; // rotate 90 deg around y |
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x = [1,0,0]; |
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y = [0,1,0]; |
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z = [0,0,1]; |
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module door(){ |
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color(wood) difference(){ |
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cube([1000,door_t,2000],true); |
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tunnel_core(); |
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} |
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} |
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module tunnel_core(){ |
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cube([tunnel_w+2*tunnel_t,door_t+2*tunnel_t,tunnel_h+2*tunnel_t],true); // eigentlicher tunnel |
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} |
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module tunnel(){ |
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color(snow)difference(){ |
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union(){ |
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tunnel_core(); |
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translate(-y*(door_t+tunnel_t)/2) cube([tunnel_w+2*tunnel_s,tunnel_t,tunnel_h+2*tunnel_s],true); // krempe |
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translate( y*(door_t+tunnel_t)/2) cube([tunnel_w+2*tunnel_s,tunnel_t,tunnel_h+2*tunnel_s],true); // krempe |
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} |
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cube([tunnel_w,door_t+2*tunnel_t+2,tunnel_h],true); // loch |
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} |
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} |
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module screw(){ |
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rotate(x*90)cylinder(d=4,h=space+3*plexy_t,center=true); |
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} |
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module sheets(){ |
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difference(){ |
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union(){ |
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translate([0,(space+plexy_t)/2,-sheet_h/2])cube([tunnel_w-2*seal,plexy_t,sheet_h],true); |
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translate([0, (plexy_t+space)/-2,-sheet_h/2])cube([tunnel_w-2*seal,plexy_t,sheet_h],true); |
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} |
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hull(){ |
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translate(-z*(sheet_h+10)) rotate(ry) cylinder(d=bearing_outer_dia+2*gap,h=bearing_h+2*gap,center=true); |
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translate(z*(bearing_outer_dia/2-sheet_h)) rotate(ry) cylinder(d=bearing_outer_dia+2*gap,h=bearing_h+2*gap,center=true); |
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} |
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} |
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} |
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module guide(){ |
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a = guide_h-gap-10; |
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b = 10+gap+stopper_w/2; |
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translate([b, 0,a/2-sheet_h])cube([20,space,a],true); |
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translate([-b, 0,a/2-sheet_h])cube([20,space,a],true); |
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} |
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module bearing_case(){ |
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a = bearing_h/2+gap; |
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rotate(ry) cylinder(d=bearing_inner_dia-gap,h=a); |
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translate([a/2+stopper_w/4,0,stopper_h/2]) cube([stopper_w/2-a,space-2*gap,stopper_h],true); |
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translate([(stopper_w/2+5)/2,0,stopper_h-5]) cube([stopper_w/2+5,space-2*gap,10],true); |
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} |
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module bearing(){ |
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color(silver) |
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rotate(ry) |
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difference(){ |
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cylinder(d=bearing_outer_dia,h=bearing_h,center=true); |
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cylinder(d=bearing_inner_dia,h=bearing_h+2,center=true); |
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} |
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} |
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module stopper(){ |
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color(green) { |
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bearing_case(); |
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rotate(z*180)bearing_case(); |
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} |
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bearing(); |
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} |
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module flap(){ |
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b = 10+gap+stopper_w/2; |
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translate(z*(sheet_h-rad)/2) rotate(x*angle) { |
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difference(){ |
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rotate(y*90) cylinder(d=2*rad,h=tunnel_w-2*seal,center=true); |
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sheets(); |
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translate([tunnel_w/ 4,0,rad/-2])screw(); |
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translate([tunnel_w/-4,0,rad/-2])screw(); |
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} |
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color(plexy) difference(){ |
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union(){ |
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sheets(); |
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guide(); |
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} |
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translate([b,0,5-sheet_h])screw(); |
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translate([b,0,guide_h-15-gap-sheet_h])screw(); |
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translate([-b,0,5-sheet_h])screw(); |
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translate([-b,0,guide_h-15-gap-sheet_h])screw(); |
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translate([tunnel_w/ 4,0,rad/-2])screw(); |
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translate([tunnel_w/-4,0,rad/-2])screw(); |
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} |
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translate(z*(raise-sheet_h))stopper(); |
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} |
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} |
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door(); |
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tunnel(); |
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flap(); |
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