135 lines
6.1 KiB
OpenSCAD
135 lines
6.1 KiB
OpenSCAD
//
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// NopSCADlib Copyright Chris Palmer 2020
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// nop.head@gmail.com
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// hydraraptor.blogspot.com
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//
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// This file is part of NopSCADlib.
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//
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// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
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// GNU General Public License as published by the Free Software Foundation, either version 3 of
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// the License, or (at your option) any later version.
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//
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// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along with NopSCADlib.
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// If not, see <https://www.gnu.org/licenses/>.
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//
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include <../core.scad>
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include <../vitamins/pulleys.scad>
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include <../vitamins/screws.scad>
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include <../vitamins/stepper_motors.scad>
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include <../vitamins/washers.scad>
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include <../utils/core_xy.scad>
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module coreXY_belts_test() {
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coreXY_type = coreXY_GT2_20_16;
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plain_idler = coreXY_plain_idler(coreXY_type);
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toothed_idler = coreXY_toothed_idler(coreXY_type);
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coreXYPosBL = [0, 0, 0];
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coreXYPosTR = [200, 150, 0];
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separation = [0, coreXY_coincident_separation(coreXY_type).y, pulley_height(plain_idler) + washer_thickness(M3_washer)];
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pos = [100, 50];
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upper_drive_pulley_offset = [40, 10];
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lower_drive_pulley_offset = [0, 0];
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coreXY_belts(coreXY_type,
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carriagePosition = pos,
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coreXYPosBL = coreXYPosBL,
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coreXYPosTR = coreXYPosTR,
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separation = separation,
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x_gap = 10,
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upper_drive_pulley_offset = upper_drive_pulley_offset,
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lower_drive_pulley_offset = lower_drive_pulley_offset,
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show_pulleys = true);
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translate([coreXYPosBL.x + separation.x/2, coreXYPosTR.y + upper_drive_pulley_offset.y, separation.z/2]) {
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// add the upper drive pulley stepper motor
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translate([coreXY_drive_pulley_x_alignment(coreXY_type) + upper_drive_pulley_offset.x, 0, -pulley_height(coreXY_drive_pulley(coreXY_type))])
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NEMA(NEMA17M);
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// add the screws for the upper drive offset idler pulleys if required
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if (upper_drive_pulley_offset.x > 0) {
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translate(coreXY_drive_plain_idler_offset(coreXY_type))
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translate_z(-pulley_offset(plain_idler))
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screw(M3_cap_screw, 20);
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translate(coreXY_drive_toothed_idler_offset(coreXY_type))
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translate_z(-pulley_offset(toothed_idler))
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screw(M3_cap_screw, 20);
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} else if (upper_drive_pulley_offset.x < 0) {
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translate([-pulley_od(plain_idler), coreXY_drive_plain_idler_offset(coreXY_type).y])
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translate_z(-pulley_offset(plain_idler))
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screw(M3_cap_screw, 20);
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translate([2*coreXY_drive_pulley_x_alignment(coreXY_type), coreXY_drive_toothed_idler_offset(coreXY_type).y])
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translate_z(-pulley_offset(toothed_idler))
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screw(M3_cap_screw, 20);
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}
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}
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translate([coreXYPosTR.x - separation.x/2, coreXYPosTR.y + lower_drive_pulley_offset.y, -separation.z/2]) {
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// add the lower drive pulley stepper motor
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translate([-coreXY_drive_pulley_x_alignment(coreXY_type) + lower_drive_pulley_offset.x, 0, -pulley_height(coreXY_drive_pulley(coreXY_type))])
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NEMA(NEMA17M);
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// add the screws for the lower drive offset idler pulleys if required
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if (lower_drive_pulley_offset.x < 0) {
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translate([-coreXY_drive_plain_idler_offset(coreXY_type).x, coreXY_drive_plain_idler_offset(coreXY_type).y])
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translate_z(-pulley_offset(plain_idler))
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screw(M3_cap_screw, 20);
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translate(coreXY_drive_toothed_idler_offset(coreXY_type))
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translate_z(-pulley_offset(toothed_idler))
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screw(M3_cap_screw, 20);
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} else if (lower_drive_pulley_offset.x > 0) {
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translate([pulley_od(plain_idler), coreXY_drive_plain_idler_offset(coreXY_type).y])
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translate_z(-pulley_offset(plain_idler))
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screw(M3_cap_screw, 20);
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translate([-2*coreXY_drive_pulley_x_alignment(coreXY_type), coreXY_drive_toothed_idler_offset(coreXY_type).y])
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translate_z(-pulley_offset(toothed_idler))
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screw(M3_cap_screw, 20);
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}
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}
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// add the screw for the left upper idler pulley
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translate([coreXYPosBL.x + separation.x/2, coreXYPosBL.y, separation.z])
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screw(M3_cap_screw, 20);
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// add the screw for the right upper idler pulley
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translate([coreXYPosTR.x + separation.x/2, coreXYPosBL.y, separation.z])
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screw(M3_cap_screw, 20);
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if (separation.x != 0) {
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// add the screw for the left lower idler pulley
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translate([coreXYPosBL.x - separation.x/2, coreXYPosBL.y, 0])
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screw(M3_cap_screw, 20);
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// add the screw for the right lower idler pulley
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translate([coreXYPosTR.x - separation.x/2, coreXYPosBL.y, 0])
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screw(M3_cap_screw, 20);
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}
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translate([-separation.x/2, pos.y + coreXYPosBL.y -separation.y/2, -separation.z/2 + pulley_height(plain_idler)/2]) {
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// add the screw for the left Y carriage toothed idler
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translate([coreXYPosBL.x, coreXY_toothed_idler_offset(coreXY_type).y, 0])
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screw(M3_cap_screw, 20);
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// add the screw for the left Y carriage plain idler
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translate([coreXYPosBL.x + separation.x + coreXY_plain_idler_offset(coreXY_type).x, separation.y + coreXY_plain_idler_offset(coreXY_type).y, separation.z])
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screw(M3_cap_screw, 20);
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// add the screw for the right Y carriage toothed idler
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translate([coreXYPosTR.x + separation.x, coreXY_toothed_idler_offset(coreXY_type).y, separation.z])
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screw(M3_cap_screw, 20);
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// add the screw for the right Y carriage plain idler
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translate([coreXYPosTR.x - coreXY_plain_idler_offset(coreXY_type).x, separation.y + coreXY_plain_idler_offset(coreXY_type).y, 0])
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screw(M3_cap_screw, 20);
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}
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}
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if ($preview)
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coreXY_belts_test();
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