swimtracker-firmware/hardware/case/BOLTS_OpenSCAD_0.3_gpl3/base/hex_socket.scad

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2021-05-15 12:19:44 +02:00
/*
* BOLTS - Open Library of Technical Specifications
* Copyright (C) 2013 Johannes Reinhardt <jreinhardt@ist-dein-freund.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
module hex_socket1(d1,d2,b1,b2,b3,k_max,s,t,L,h_max,l){
b = (l <= L) ? l - k_max - h_max :
l < 125 ? b1 :
l < 200 ? b2 :
b3;
h = l - k_max - b;
//TODO: These checks are not very careful
check_dimension_defined(b,"threaded shaft length b");
check_dimension_defined(t,"socket depth t");
check_dimension_defined(h_max,"unthreaded shaft length h_max");
difference(){
union(){
//Head
cylinder(r1=d2/2,r2=d1/2,h = k_max);
//unthreaded shaft
cylinder(r=d1/2,h=k_max+h);
//threaded shaft
translate([0,0,k_max+h]) thread_external(d1,b);
}
hex_socket_neg(t,s);
}
}
module hex_socket2(d1,d2,b,k,s,t_min,L,l){
h = (l<= L) ? 0 : l - b;
check_dimension_positive(h,"l too short");
difference(){
union(){
//Head
translate([0,0,-k]) cylinder(r=d2/2,h = k);
//unthreaded shaft
cylinder(r=d1/2,h=h);
//threaded shaft
translate([0,0,h]) thread_external(d1,b);
}
translate([0,0,-k]) hex_socket_neg(t_min,s);
}
}