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// The thickness of the mount plate (in mm)
mountplate_thickness = 5 ; // [0:10]
// The thickness of the motor mount plate (in mm)
motormountplate_thickness = 2 ; // [2:7]
/* [Hidden] */
layer_height=.25; extrusion_width=.5;
epsilon=.01;
module smoothen(r) {
offset(r=+r,$fn=r*PI*6) offset(delta=-r) children();
}
module the_bracket(
mountplate_size=[62,40],
mountplate_r = 3,
mounthole_d = 3.5,
mountholes_span=[54,30],
motor_side=42.3,
motor_protrusion_hole_d = 23.5,
motormountholes_span = 31,
thickness = 2,
motormountplate_thickness = 2.5,
mountplate_thickness = 2,
motormounthole_d = 3.1,
motorconnector_width = 16.5,
motorconnector_hole_r = 2.5,
motorconnector_distance = 16.5,
mountscrew_l = 10, mountscrewhead_d = 6, mountscrewhead_h = 3,
mounthole_depth = 5,
motormounthole_depth = 4,
extra_spacer = 0
) {
titan_h = 25; titan_bowdenmount_h = 4;
echo("max longscrew",titan_h+motormountplate_thickness+extra_spacer+motormounthole_depth);
echo("max shortscrew",titan_bowdenmount_h+motormountplate_thickness+extra_spacer+motormounthole_depth);
difference() {
union() {
// mount plate
linear_extrude(height=mountplate_thickness)
smoothen(r=mountplate_r)
translate([-mountplate_size.x/2,0])
square(size=mountplate_size);
// motor mount plate
hull() for(sx=[-1,1])
translate([sx*(motor_side/2+thickness-motormountplate_thickness/2),motormountplate_thickness/2,0])
cylinder(d=motormountplate_thickness,h=motor_side+mountplate_thickness,$fn=motormountplate_thickness*PI*2);
// sides
for(sx=[-1,1]) translate([sx*(motor_side+thickness)/2,0,0])
hull() {
translate([-thickness/2,motormountplate_thickness/2,0])
cube(size=[thickness,mountplate_size.y-motormountplate_thickness/2,mountplate_thickness]);
translate([-thickness/2,motormountplate_thickness/2,0])
cube(size=[thickness,motormountplate_thickness/2,mountplate_thickness+motor_side]);
}
}
// mount holes
for(sx=[-1,1]) for(sy=[-1,0,1])
translate([sx*mountholes_span.x/2,sy*mountholes_span.y/2,0])
translate([0,mountplate_size.y/2,0]) {
translate([0,0,-1])
cylinder(d=mounthole_d,h=mountplate_thickness+2,$fn=mounthole_d*PI*2);
translate([0,0,mountscrew_l-mounthole_depth])
cylinder(d=mountscrewhead_d,h=mountplate_thickness+1,$fn=mountscrewhead_d*PI*2);
}
// motor protrusion cutout
translate([0,0,mountplate_thickness+motor_side/2])
rotate([-90,0,0]) translate([0,0,-1])
cylinder(d=motor_protrusion_hole_d,h=motormountplate_thickness+2,$fn=motor_protrusion_hole_d*PI*2);
// motor mount holes
for(sx=[-1,1]) for(sz=[-1,1])
translate([sx*motormountholes_span/2,0,sz*motormountholes_span/2])
translate([0,0,mountplate_thickness+motor_side/2])
rotate([-90,0,0]) translate([0,0,-1])
cylinder(d=motormounthole_d,h=motormountplate_thickness+2,$fn=motormounthole_d*PI*2);
// motor connector cutout
translate([mountplate_size.x/2,
motormountplate_thickness+extra_spacer+motorconnector_distance-motorconnector_hole_r,
mountplate_thickness+motor_side/2-motorconnector_width/2])
rotate([0,-90,0])
linear_extrude(height=mountplate_size.x)
smoothen(r=motorconnector_hole_r)
square([motor_side+mountplate_thickness+1,mountplate_size.y]);
}//difference
}//the_bracket module
// mountplate_thickness = 5.1
the_bracket(mountplate_thickness=mountplate_thickness,motormountplate_thickness=motormountplate_thickness);
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