10x10mm internal 8mm Openscad $fn=48; trubah_ext=10; trubah_int=8; connector_lenght=5; holediam=4; difference(){ union(){ translate([0,0,(trubah_ext-trubah_int)/4]){ cube([trubah_ext,trubah_ext,trubah_int+(trubah_ext-trubah_int)/2],center=true);} //x-axis /*translate([connector_lenght,0,0]){ cube([connector_lenght*2+trubah_ext,trubah_int,trubah_int],center=true);}*/ //dual x cube([connector_lenght*4+trubah_ext,trubah_int,trubah_int],center=true); //y-axis /*translate([0,connector_lenght,0]){cube([trubah_int,connector_lenght*2+trubah_ext,trubah_int],center=true);}*/ //dual y cube([trubah_int,connector_lenght*4+trubah_ext,trubah_int],center=true); //z-axis translate([0,0,connector_lenght+(trubah_ext-trubah_int)/2]){cube([trubah_int,trubah_int,connector_lenght*2+trubah_ext],center=true);} } //z translate([0,0,connector_lenght/4+trubah_ext]){ cylinder(h=connector_lenght+trubah_ext,d=holediam,center=true);} //small center hole cylinder(h=connector_lenght+trubah_ext,d=holediam/2,center=true); //y rotate([-90,0,0]){ translate([0,0,connector_lenght/4+trubah_ext]){ cylinder(h=connector_lenght*2,d=holediam,center=true);} } //y dual rotate([90,0,0]){ translate([0,0,connector_lenght/4+trubah_ext]){ cylinder(h=connector_lenght*2,d=holediam,center=true);} } //x rotate([0,90,0]){ translate([0,0,connector_lenght/4+trubah_ext]){ cylinder(h=connector_lenght*2,d=holediam,center=true);} } //dual x rotate([0,-90,0]){ translate([0,0,connector_lenght/4+trubah_ext]){ cylinder(h=connector_lenght*2,d=holediam,center=true);} } } //cap difference(){ translate([trubah_ext/2,trubah_ext/2,-trubah_int+(trubah_ext-trubah_int)*2]){ cube([trubah_ext,trubah_ext,(trubah_ext-trubah_int)/2]);} translate([trubah_ext,trubah_ext,-trubah_int+(trubah_ext-trubah_int)*2-0.5]){cylinder(h=trubah_ext-trubah_int,d1=holediam/2-0.5,d2=holediam+0.5);} }