Cad Exercises - Bracket

Revisiting Cad Exercises

$fn=40;
main();

module main(){
translate ([17.5,-25,29])rotate([-90,0,0])insert();
translate ([-17.5,-25,29])rotate([-90,0,0])insert();
difference(){
union(){
rotate([90,0,0])linear_extrude(30,center=true,convexity=20)

bottomprofile1();
rotate([90,0,0])linear_extrude(40,center=true,convexity=20)

bottomprofile2();
translate ([0,0,10]) rotate([90,0,0])

linear_extrude(40,center=true,convexity=20)topprofile2();
translate ([0,0,10]) rotate([90,0,0])

linear_extrude(30,center=true,convexity=20)topprofile1();
}
 translate([-30, 7.5,30])cylinder(100,2.25,2.25,center=true);
 translate([ 30, 7.5,30])cylinder(100,2.25,2.25,center=true);
 translate([ 30,-7.5,30])cylinder(100,2.25,2.25,center=true);
 translate([-30,-7.5,30])cylinder(100,2.25,2.25,center=true); 
 translate([  0, 15, 30])cylinder(100,2.25,2.25,center=true);
 translate([  0,-15, 30])cylinder(100,2.25,2.25,center=true);

}}

module insert(){ difference()
{color("blue"){
cylinder(5,10,10);
cylinder(45,7.5,7.5);}
translate([0,0,-0.01])cylinder(45.04,5.5,5.5);
 }}
module bottomprofile1()
{ 
difference(){
union(){

polygon([[0,5],[25,5],[20,0],[42.5,0],

[42.5,12.5],[35,15],[35,25],[0,25]]);
mirror()

polygon([[0,5],[25,5],[20,0],[42.5,0],

[42.5,12.5],[35,15],[35,25],[0,25]]);
}
translate ([17.5,25])circle(7.5);
translate ([-17.5,25])circle(7.5);
}}


module bottomprofile2(){
difference(){
union(){intersection(){
 square([70,50],center=true);
union(){ hull(){
translate ([17.5,25])circle(12.5);
translate ([-17.5,25])circle(12.5);
}
translate ([0,12.5])square(15,center=true);
}
}
}
translate ([17.5,25])circle(7.5);
translate ([-17.5,25])circle(7.5);
}}
module topprofile1()
{ difference(){translate ([0,25])
hull(){

translate ([0,5.75]) square([70,11.5],center=true);
translate ([0,6.25])  square([68,12.5],center=true);
}
translate ([17.5,25])circle(7.5);
translate ([-17.5,25])circle(7.5);
}
}
 
module topprofile2(){
difference(){
union(){intersection(){
 translate ([0,50]) square([70,50],center=true);
union(){ hull(){
translate ([17.5,25])circle(12.5);
translate ([-17.5,25])circle(12.5);
}
translate ([0,12.5])square(15,center=true);
}
}
}
translate ([17.5,25])circle(7.5);
translate ([-17.5,25])circle(7.5);
}}


 

Cad Exercises - Bracket

Revisiting Cad Exercises

$fn=16;

main();
module main(){
 
    {
        head();
        arm();
        foot();
    }
}


module head()
{
difference(){ 
union(){ 
    translate([150,-6,38+17])mirror([1,0,1])ocorner(3);//trim
    translate([150, 6,38+17])mirror([1,0,1])ocorner(3);//trim
    translate([147,-12,38+14+3])cube([7,18+6,27]);//trim
    translate([147,-6,38+11])cube([7,18-6,33]);//trim    
        difference(){ 
            translate([150,-16,38])cube([60,32,44]); 
            translate([150,0,38+44])mirror([0,0,0])

        mirror([0,-1,-1])
        otrim(34);//trim
        }

}

    translate([147,-12,38+11])cylinder(44,3,3);//trim
    translate([147,12,38+11])cylinder(44,3,3);//trim
    translate([147, 0,38+11]) rotate([90,0,0]) 
        cylinder(44,3,3,center=true);//trim 
    translate([147,-12,38+44])mirror([0,0,1]) 
        ocorner(3);//trim
    translate([147, 12,38+44])mirror([0,0,1]) 
        ocorner(3);//trim 
    translate([175, 0,38+22])rotate([90,0,0])
         cylinder(44,15,15,center=true,$fn=64);//trim
    translate([200, 0,38+22])rotate([0,0,0]) 
        cylinder(45,4.5,4.5,center=true,$fn=16);//trim
    translate([200, 0,38+22])rotate([0,0,0]) 
        cylinder(2,30,30,center=true,$fn=16);//trim

   }  
}
module arm()
{   
difference(){ 
        translate([70,-9,38+14])cube([80,18,30]);
//trim
 translate([110,-9,52])mirror([0,0,1])mirror([1,0,1])otrim(81);      
 translate([110,9,52])mirror([0,1,-1])mirror([1,0,1])otrim(81);  
 translate([110,-9,82])mirror([0,0,1])mirror([1,0,-1])otrim(81);      
 translate([110,9,82])mirror([0,1,1])mirror([1,0,-1])otrim(81);  
 

   }   
difference(){   
        translate([20,-9,10])cube([55,18,22]);  
//trim 
 translate([20,-9,15])mirror([0,0,0])otrim(36);      
 translate([20,9,15])mirror([0,1,0])otrim(36);  
 translate([75,-9,15])mirror([1,0,0])otrim(36);  
 translate([75,9,15])mirror([1,1,0])otrim(36);  

 }   

    intersection()
    {
        translate([20,-9,32])cube([75,18,50]);
        difference(){   translate([70,0,32]) rotate([90,0,0])
            cylinder(18,50,50,center=true,$fn=64);
                        translate([95,0,32]) rotate([90,0,0])
            cylinder(19,20,20,center=true,$fn=64);
//trim
mirror([0,0,0])translate([95,9,32]) rotate([90,0,0])

ocorner32(20);
mirror([0,1,0])translate([95,9,32]) rotate([90,0,0])

ocorner32(20);
mirror([0,1,0])translate([70,9,32]) rotate([90,0,0])

ocorner32(-55+5);
mirror([0,0,0])translate([70,9,32]) rotate([90,0,0])

ocorner32(-55+5);


 }
    }
}

module foot(){
    difference(){
        hull(){ for(i=[0:1/4:1]){
        y=cos(i*90)*3; x=-3+sin(i*90)*3;
        translate([0,0,0]) linear_extrude(7+y) offset( x)footP();
        } }
        translate([0,0,-0.005])linear_extrude(10.01){
        circle(4); 
        translate([75,-30])circle(4); 
        translate([75,30]) circle(4);} 
    }
//trim
 translate([20+3,-9+3,10])ocorner(3);
 translate([20+3,9-3,10])ocorner(3);
 translate([75-3,-9+3,10])ocorner(3);
 translate([75-3,9-3,10])ocorner(3);
 translate([20,0,10])mirror([1,0,0])mirror([0,-1,1])

otrim(12);
 translate([75,0,10])               mirror([0,-1,1])

otrim(12);
 translate([20+55/2,9,10])mirror([0,0,1])mirror([1,0,1])

otrim(55-6);
 translate([20+55/2,-9,10])mirror([0,-1,1])mirror([1,0,1])

otrim(55-6);}

 module footP(){
    hull()
    {
        circle(10);
        translate([75,-30])circle(10);
        translate([75,30])circle(10);
    }
}


module quarterround(){ 
difference()
{
    translate([-1,-1]) square([4,4]);
    translate([3,3])circle(3,$fn=16);
}}

module ocorner(r)
{
rotate_extrude ($fn=16,convexity=20)translate([r,0])

quarterround();
}
module ocorner32(r)
{
rotate_extrude ($fn=64,convexity=20)translate([r,0])

quarterround();
}
module otrim(l)
{
linear_extrude (l,center=true,convexity=20)translate([0,0])

quarterround();
}
 

Cad Exercies - Bracket

Revisiting Cad Exercises

 

source: https://goo.gl/xLKvB8

$fn=50;
main();
module main(){
    difference(){
        union(c ){
        translate([ 0, 0, 80+36])cylinder( 30+6+6,8,8);
        linear_extrude(6,convexity=20)plate1();
        linear_extrude( 80+36+6,convexity=20)difference(){
        square(60,center=true);translate([21.01,0,0])square(42,center=true);}   
        translate([ 0, 0, 36+6])rotate ([90,0,0])cylinder (60,19,19,center=true);
        translate([ 0, 0, 80+36+6])rotate ([90,0,0])cylinder (60,30,30,center=true);
        }
        translate([ 0, 0, 80+36])cylinder(  30+6+7,4,4);
        translate([ 0, 0, 36+6])
        linear_extrude( 80+ 30+7,convexity=20)translate([16,0,0])square([32,61],center=true); 
        translate([ 0, 0, 36+6])rotate ([90,0,0])cylinder (61,7,7,center=true);
        translate([ 0, -40, 36+6])rotate ([90,0,0])cylinder (60,12,12,center=true);
        translate([ 0, 45, 36+6])rotate ([90,0,0])cylinder (60,12,12,center=true);
        translate([ 0, 0, 80+36+6])rotate ([90,0,0])cylinder (61,9,9,center=true);
        translate([ 0, -20, 80+36+6])rotate ([90,0,0])cylinder (60,15,15,center=true);
        translate([ 0, -40, 80+36+6])rotate ([90,0,0])cylinder (60,20,20,center=true);
        }
}

 
module plate1()

{
center=true;
R=13;r=8;
difference(){
        union(){
            translate([ 40, 40])circle( R );
            translate([-40, 40])circle( R );
            translate([-40,-40])circle( R);
            translate([ 40,-40])circle( R );
            square(80,center);
        }
    translate([ 40, 40])circle( r );
    translate([-40, 40])circle( r );
    translate([-40,-40])circle( r );
    translate([ 40,-40])circle( r );
    
    }
}