mirror of
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123 lines
4.0 KiB
OpenSCAD
123 lines
4.0 KiB
OpenSCAD
//
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// Mendel90
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//
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// GNU GPL v2
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// nop.head@gmail.com
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// hydraraptor.blogspot.com
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//
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// Fastens the Y motor to the base
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//
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include <conf/config.scad>
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use <pulley.scad>
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thickness = 4;
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tab = 2 + washer_diameter(base_washer);
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foot = part_base_thickness + (base_nut_traps ? nut_trap_depth(base_nut) : 0);
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holes = tab / 2 + 1;
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function y_motor_bracket_height() = round(NEMA_width(Y_motor)) + 2;
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function y_motor_height() = y_motor_bracket_height() / 2;
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function y_motor_bracket_width() = y_motor_bracket_height() + 2 * (tab + thickness);
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function y_motor_bracket_top_width() = y_motor_bracket_width() - 2 * tab;
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depth = y_motor_bracket_height() + thickness - part_base_thickness;
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nut_offset = base_nut_traps ? -tab / 2 + nut_radius(base_nut) + 0.5 : 0;
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module y_motor_bracket_holes()
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for(side = [-1, 1])
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for(z = [thickness - depth + holes, thickness - holes])
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translate([side * (y_motor_bracket_width() / 2 - tab / 2 + nut_offset), -y_motor_bracket_height() / 2 + part_base_thickness, z])
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rotate([-90, 0, 0])
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child();
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module y_motor_bracket() {
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height = y_motor_bracket_height();
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width = y_motor_bracket_width();
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stl("y_motor_bracket");
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color(y_motor_bracket_color) {
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difference() {
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translate([0, 0, thickness - depth / 2]) // main body
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cube([width, height, depth], center = true);
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cylinder(r = NEMA_big_hole(Y_motor), h = thickness * 2 + 1, center = true); // hole for stepper locating boss
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translate([0, 0, - depth / 2])
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cube([depth, height + 1, depth], center = true); // space for motor
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translate([-width / 2, foot, 0])
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cube([tab * 2, height, depth * 2], center = true); // cut outs for lugs
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translate([width / 2, foot, 0])
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cube([tab * 2, height, depth * 2], center = true);
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translate([0, - height / 2 + foot, - depth + thickness]) // sloping sides
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rotate([45,0,0])
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translate([0,0, - depth / 2])
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cube([width, 3 * height, depth], center = true);
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for(x = NEMA_holes(Y_motor)) // motor screw holes
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for(y = NEMA_holes(Y_motor))
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translate([x,y,0])
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poly_cylinder(r = M3_clearance_radius, h = 2 * thickness + 1, center = true);
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for(side = [-1,1])
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translate([side * (width / 2 - tab), height / 2, 0])
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rotate([0, 0, -135 - side *45])
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fillet(r = 3, h = 100);
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//
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// mounting screw holes
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//
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y_motor_bracket_holes()
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if(base_nut_traps)
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translate([0, 0, foot - part_base_thickness])
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nut_trap(screw_clearance_radius(base_screw), nut_radius(base_nut), foot - part_base_thickness, true);
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else
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teardrop_plus(r = screw_clearance_radius(base_screw), h = foot * 2 + 1, center = true);
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}
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}
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}
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module y_motor_assembly() {
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assembly("y_motor_assembly");
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color(y_motor_bracket_color) render() y_motor_bracket();
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//
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// Mounting screws and washers
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//
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y_motor_bracket_holes()
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base_screw(part_base_thickness);
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//
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// Motor and screws
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//
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rotate([0, 0, base_nuts ? 180 : 90])
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NEMA(Y_motor);
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translate([0,0, thickness])
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NEMA_screws(Y_motor);
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//
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// Pulley
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//
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translate([0, 0, 4])
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pulley_assembly();
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end("y_motor_assembly");
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}
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module y_motor_bracket_stl() translate([0, 0, thickness]) rotate([0,180,0]) y_motor_bracket();
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module y_motor_bracket_x2_stl()
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for(i = [0:1])
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translate([0, -(y_motor_bracket_height() + 2) * i, 0])
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rotate([0, 0, i * 180])
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y_motor_bracket_stl();
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if(1)
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y_motor_assembly();
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else
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y_motor_bracket_stl();
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