/* * Miscellaneous constants used in Mendel * by Vik Olliver 29-03-2010. Uses components of the * OpenSCAD Shapes Library (www.openscad.at) * Copyright (C) 2009 Catarina Mota * * 5-Apr-2010 vik@diamondage.co.nz * Different clearances are being implemented for vertical and * horizontal holes, as rudimentary extruders cannot relaibly * control extrusions around corners. * * 5-Apr-2010 vik@diamondage.co.nz * Added vertex separation and adapted for Y motor bracket. * * 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 * */ // Useful constants etc. nema17_side=45; m3_clearance_rad=1.9; m4_clearance_rad_v=2.8; // Vertical clearance m4_clearance_rad_h=2.2; // Horizontal clearance m6_clearance_rad=3.7; m8_tight_rad=4.6; m8_clearance_rad=4.9; bearing_608_rad_v=11.8; bearing_608_rad_h=11.4; bearing_608_len=8; // Stuff relevant to the construction of various interconnecting bits of Mendel. // // Vertex and Y motor mount stuff. vertex_m8_sep=58; y_bar_hole_spacing=12; y_bar_cube_width=24; // X carriage design - uncomment your number of extruders x_car_top_axle_offset=32; x_car_top_knob_width=13; // Width of knobbly bit at each end of the X carriage top section. x_belt_spacing=20; // single extruder x_car_bottom_axle_offset=22.5; x_car_length=98; // Length of the X carriage x_car_wing_offset=7.8; // Offset of X Carriage wings from centre line // dual extruder //x_car_bottom_axle_offset=50; //x_car_length=153; // Length of the X carriage //x_car_wing_offset=35.3; // Offset of X Carriage wings from centre line // Extruder size etc. extruder_mount_hole_spacing=50; // Basic stepper-driven extruder extruder_thick=20; extruder_height=44; // Wade's original idler ei_trans_spacing=26; ei_block_len=35; ei_indent=4.5; ei_block_wid=22; ei_cis_spacing=ei_block_wid-2*ei_indent; // Axis leadscrew holder leadscrew_base_height=17; z_guide_bar_rad=4.3; // Radius of the Z guide bars z_motor_rail_sep=63; z_motor_rail_height=12;