84 lines
2.5 KiB
OpenSCAD
84 lines
2.5 KiB
OpenSCAD
use <picatinny-rail.scad>
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use <Chamfer.scad>
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include <BOSL2/std.scad>
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include <BOSL2/screws.scad>
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// To jest model celownika do karabinu CZ Varmint
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// Koncepcyjnie składa się z 3 części - na górze jest szyna
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// Picattiny (rail), na środku jest obejma lufy (clamp), i na dole
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// wystaje pałąk do przykręcenia (post)
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// parameters
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length = 4; // ustaw poniżej 5 do testów wymiarów
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clamp_inner = 22.15;
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clamp_inner_acurracy = 50;
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clamp_thickness = 4;
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c_s = length>5 ? 1 : 0.4; // chamfer_size używane tylko do testów
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rail_height = -9.4 + clamp_inner/2 + 6.8; // -9.4 is to center the picatinny
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post_thickness=15;
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post_length=10;
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post_slit=2;
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post_chamfer = 1.665;
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nut_wall_t = 0.4;
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screw = "M2.5";
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info = screw_info(name=screw, head="socket");
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hh = struct_val(info, "head_height");
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screw_head_h = post_thickness - hh - nut_wall_t;
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difference() {
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// celownik
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union() {
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// obejma wokół lufy
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cyl_size = clamp_inner/2 + clamp_thickness;
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chamferCylinder(h=length, r=cyl_size, ch=1*c_s, q=1);
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// na górze picatinny
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if (length > 5) {
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rotate([90,0,-90]) translate([0,0,rail_height])
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picatinny_rail(l=length, d=rail_height, c=1.5, n=1, a=length/2);
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}
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// na dole wystający trzpień do przykręcenia
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translate([clamp_inner/2, post_thickness*-0.5, 0])
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chamferCube([post_length, post_thickness, length], ch=c_s);
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}
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// lufa, śruby oraz przecięcie
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union() {
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// lufa karabinu
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translate([0,0,-0.1])
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chamferCylinder(h=length+0.2, r=clamp_inner/2, $fn=clamp_inner_acurracy, ch=-c_s);
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// przecięcie
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translate([clamp_inner/2-0.1,(post_slit * -0.5),-0.1])
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cube([(post_length + 0.2),post_slit,length+0.2]);
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// miejsce na śrubę
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if (length > 5){
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for (i = [length*1/4, length*3/4]) {
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translate([(clamp_inner + post_length)/2,0,i])
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rotate([90,90,0])
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screw_hole(spec=screw, length=screw_head_h, head="socket", thread=0, $fn=100);
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translate([(clamp_inner + post_length)/2,post_thickness/2 - nut_wall_t,i])
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rotate([90,90,0])
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nut_trap_inline(spec=screw, h=hh);
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}
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}
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// chamfer for slit
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translate([clamp_inner/2 - post_slit/4,0,length/2-0.5]) rotate([0,0,45])
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cube([post_slit*post_chamfer,post_slit*post_chamfer,length+2], center=true);
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// debug - wyświetl rozmiar
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if(length < 5) {
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translate([clamp_inner/2 + 2 ,post_thickness/6,length-0.5])
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linear_extrude(5) text(str(clamp_inner), 3);
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}
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}
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}
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