// /* * Extruder Idler Block * by Timothy Schmidt. * Modified 19-May-2010 by vik"diamondage.co.nz * Parameterised it to use Mendel includes. * Made it thicker. * * 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 2 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 * */ difference () { // Body cube(size=[ei_block_wid,ei_block_len,13]); // Axle and bearing cavity. Yes, these are not concentric. It gives the bearing room to rotate. translate(v=[ei_block_wid/2,ei_block_len/2,13]) rotate([0,90,0]) cylinder(r=m8_tight_rad, h=25,center=true); translate(v=[ei_block_wid/2,ei_block_len/2,12]) rotate([0,90,0]) cylinder(r=bearing_608_rad_v+1, h=8.4,center=true); // Bolt holes translate(v=[ei_indent,ei_indent,-1]) m4_hole_vert(30); translate(v=[ei_block_wid-ei_indent,ei_indent,-1]) m4_hole_vert(30); translate(v=[ei_indent,ei_block_len-ei_indent,-1]) m4_hole_vert(30); translate(v=[ei_block_wid-ei_indent,ei_block_len-ei_indent,-1]) m4_hole_vert(30); }