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/*
*Z Axis motor holder for Mendel
* by Vik Olliver. (C) 4-Apr-2010
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
<mendel.inc>
<mendel.conf>
z_motor_bracket_length=80;
z_motor_base_width=nema17_side+12;
z_motor_base_height=13;
z_brace_height=23;
module z_motor_bracket_body() {
union () {
// Main boxy bit
translate ([z_motor_bracket_length/2,0,z_motor_base_height/2])
box(z_motor_bracket_length,z_motor_base_width,z_motor_base_height);
// Brace
translate ([z_motor_bracket_length-21,0,z_brace_height/2]) box(17,z_motor_base_width,z_brace_height);
// Panel at the back.
translate ([z_motor_bracket_length-2.5,0,z_brace_height/2]) box(5,z_motor_base_width,z_brace_height);
// Two blocks over the rear M8 bolt hole
translate ([z_motor_bracket_length-9,(z_motor_base_width-16)/2,z_brace_height/2])
difference () {
box(18,16,z_brace_height);
translate ([-9,-17,0]) rotate([0,0,45]) box(20,20,3*z_motor_base_height);
}
translate ([z_motor_bracket_length-12,-(z_motor_base_width-16)/2,z_brace_height/2])
difference () {
box(18,16,z_brace_height);
translate ([-9,17,0]) rotate([0,0,45]) box(20,20,3*z_motor_base_height);
}
// Box to hold rail guide.
translate ([7,(z_motor_base_width-15)/-2,(z_motor_rail_height+z_motor_base_height+5)/2])
box(14,15,z_motor_rail_height+z_motor_base_height+5);
}
}
module z_motor_cutouts () {
translate ([nema17_side/2+12,0,7]) nema_17();
// Clip off the two boxes to allow chain/belt to pass.
translate ([z_motor_bracket_length-33,0,z_motor_base_height*2.4]) rotate ([0,45,0])
box(z_motor_base_height*2,z_motor_base_width+1,z_motor_base_height*2);
// Hole for rail guide
translate ([z_motor_bracket_length-10-z_motor_rail_sep,0,z_motor_base_height-0.5+z_motor_rail_height]) rotate([0,-90,90])
m4_hole_horiz(z_motor_base_width+10);
}
module z_motor_bracket () {
difference (){
union () {
difference() {
z_motor_bracket_body();
z_motor_cutouts ();
}
translate ([z_motor_bracket_length-12,(z_motor_base_width-20)/-2,z_brace_height/2])
box(24,20,z_brace_height);
}
// Rear M8 bolt hole
translate ([z_motor_bracket_length-10,0,z_motor_base_height-0.5]) rotate([0,-90,90])
m8_hole_horiz(z_motor_base_width+10);
// Cutout for nut & washers
translate([z_motor_bracket_length-10,-z_motor_base_width/2,z_motor_base_height-0.5]) {
rotate ([90,0,0]) cylinder(h=22,r=10,center=true);
translate([7,0,0]) box(20,22,z_brace_height+4);
}
}
}
z_motor_bracket();
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