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/*
*Z Tensioner for Mendel
* by Vik Olliver. (C) 4-Apr-2010
* modified by Timothy Schmidt
*
* 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>
leadscrew_base_length=40;
leadscrew_base_width=60;
z_slider_grip_length=11;
z_slider_grip_width=34;
z_slider_grip_height=20;
z_guide_bar_rad=4.3;
z_bearing_inset=33;
module z_leadscrew_body() {
hollow_len=leadscrew_base_length-5-z_slider_grip_length;
union () {
// Main boxy bit
translate ([leadscrew_base_length/2,0,leadscrew_base_height/2])
box (leadscrew_base_length,leadscrew_base_width,leadscrew_base_height);
// Panel at the back.
translate ([leadscrew_base_length-2.5,0,11]) box(5,leadscrew_base_width,22);
// Two blocks over the rear M8 bolt hole
translate ([leadscrew_base_length-9,(leadscrew_base_width-16)/2,(leadscrew_base_height+8)/2])
box(18,16,leadscrew_base_height+8);
translate ([leadscrew_base_length-9,-(leadscrew_base_width-16)/2,(leadscrew_base_height+8)/2])
box(18,16,leadscrew_base_height+8);
// Lip for tensioner mount
translate ([11,0,20])
box(14,leadscrew_base_width-16,7);
}
}
module z_leadscrew_cutouts () {
// Long M8 bolt holes
translate ([leadscrew_base_length/2,leadscrew_base_width/2-8,leadscrew_base_height/2]) rotate ([0,-90,0])
m8_hole_horiz(leadscrew_base_length*2);
translate ([leadscrew_base_length/2,-leadscrew_base_width/2+8,leadscrew_base_height/2]) rotate ([0,-90,0])
m8_hole_horiz(leadscrew_base_length*2);
// Recesses for nuts
translate ([-2,leadscrew_base_width/2-8,leadscrew_base_height/2]) rotate ([0,90,0])
cylinder(h=12,r=11,center=true);
translate ([-2,leadscrew_base_width/2,leadscrew_base_height/2])
box(12,12,leadscrew_base_height+1);
translate ([-2,leadscrew_base_width/-2+8,leadscrew_base_height/2]) rotate ([0,90,0])
cylinder(h=12,r=11,center=true);
translate ([-2,-leadscrew_base_width/2,leadscrew_base_height/2])
box(12,12,leadscrew_base_height+1);
// Rear M8 bolt hole
translate ([leadscrew_base_length-10,0,leadscrew_base_height-0.5]) rotate([0,-90,90])
m8_hole_horiz(leadscrew_base_width+10);
// Mounting hole for bearing
translate ([11,0,12])
box(4, leadscrew_base_width-16-z_guide_bar_rad*2, leadscrew_base_height+10);
}
module z_leadscrew_base () {
difference() {
z_leadscrew_body();
z_leadscrew_cutouts ();
}
}
z_leadscrew_base();
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