mirror of
https://github.com/nophead/NopSCADlib.git
synced 2025-08-12 10:23:58 +02:00
added an option to emplace the motor in the back
This commit is contained in:
Alex Verschoot
131
utils/core_xy.scad
Normal file → Executable file
131
utils/core_xy.scad
Normal file → Executable file
@@ -68,27 +68,41 @@ function coreXY_drive_plain_idler_offset(type) = //! Offset of plain drive idler
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[ coreXY_plain_idler_offset(type).x, -(pulley_od(coreXY_plain_idler(type)) + pulley_od(coreXY_drive_pulley(type))) / 2, 0 ];
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module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_offset = [0, 0], drive_pulley_offset = [0, 0], show_pulleys = false, lower_belt = false, hflip = false) { //! Draw one belt of a coreXY setup
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module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_offset = [0, 0], drive_pulley_offset = [0, 0], show_pulleys = false, lower_belt = false, hflip = false, motor_back = false) { //! Draw one belt of a coreXY setup
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// y-carriage toothed pulley
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p0_type = coreXY_toothed_idler(type);
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p0p_type = coreXY_plain_idler(type);
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p0 = [ size.x / 2, -size.y / 2 - pulley_od(p0_type) / 2 + pos.y - separation_y / 2 ];
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// bottom right toothed idler pulley
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p1_type = p0_type;
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p1p_type = coreXY_plain_idler(type);
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p1 = [ size.x / 2, -size.y / 2 ];
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// bottom left anchor toothed idler pulley
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p2_type = p0_type;
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p2_type = coreXY_toothed_idler(type);
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p2 = [ -size.x / 2, -size.y / 2 ];
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//drive type if the motor is in the back
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p2d_type = coreXY_drive_pulley(type);
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p2d = [ p2.x + drive_pulley_offset.x,
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p2.y + drive_pulley_offset.y
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];
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// plain idler for offset stepper motor if the motor is in the back
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p2p_type = coreXY_plain_idler(type);
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p2p = [ p2.x + plain_idler_offset.x + drive_pulley_offset.x,
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p2.y + plain_idler_offset.y
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];
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// stepper motor drive pulley
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// stepper motor drive pulley if motor not in back
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p3d_type = coreXY_drive_pulley(type);
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p3d = [ -size.x / 2 + coreXY_drive_pulley_x_alignment(type) + drive_pulley_offset.x,
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size.y / 2 + drive_pulley_offset.y
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];
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// toothed idler for offset stepper motor drive pulley
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// toothed idler for offset stepper motor drive pulley if motor not in back
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p3t_type = coreXY_toothed_idler(type);
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p3t = [ -size.x / 2 + (drive_pulley_offset.x > 0 ? 0 : plain_idler_offset.x + 2 * coreXY_drive_pulley_x_alignment(type)),
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size.y / 2 + coreXY_drive_pulley_x_alignment(type)
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@@ -96,11 +110,14 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
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// y-carriage plain pulley
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p4_type = coreXY_plain_idler(type);
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p4t_type = coreXY_toothed_idler(type);
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p4 = [ -size.x / 2 + pulley_od(p4_type) / 2 + pulley_od(p3d_type) / 2 + coreXY_drive_pulley_x_alignment(type) + (drive_pulley_offset.x == 0 ? 0 : plain_idler_offset.x),
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-size.y / 2 + pulley_od(p4_type) / 2 + pos.y + separation_y / 2
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];
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p4mb = [-size.x / 2 + pulley_od(p4_type) / 2 + pulley_od(p3t_type) / 2 + coreXY_drive_pulley_x_alignment(type),
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-size.y / 2 + pulley_od(p4_type) / 2 + pos.y + separation_y / 2];
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// plain idler for offset stepper motor drive pulley
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// plain idler for offset stepper motor drive pulley if motor not in back
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p3p_type = p4_type;
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p3p = [ drive_pulley_offset.x > 0 ? p4.x : -p0.x - pulley_od(p0_type),
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size.y / 2 - pulley_od(p3p_type) / 2 - pulley_od(p3d_type) / 2 + plain_idler_offset.y
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@@ -121,28 +138,70 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
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}
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show_pulleys(show_pulleys) {
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translate(p0)
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pulley_assembly(p0_type); // y-carriage toothed pulley
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if ( !motor_back ) {
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translate(p0)
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pulley_assembly(p0_type); // y-carriage toothed pulley
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translate(p1)
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pulley_assembly(p1_type); // bottom right toothed idler pulley
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translate(p2)
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pulley_assembly(p2_type); // bottom left anchor toothed idler pulley
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translate(p3d)
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hflip(hflip)
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pulley_assembly(p3d_type); // top left stepper motor drive pulley
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translate(p1)
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pulley_assembly(p1_type); // bottom right toothed idler pulley
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if (drive_pulley_offset.x ) { // idler pulleys for offset stepper motor drive pulley
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translate(p3t)
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pulley_assembly(p3t_type); // toothed idler
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translate(p2)
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pulley_assembly(p2_type); // bottom left anchor toothed idler pulley
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translate(p3d)
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hflip(hflip)
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pulley_assembly(p3d_type); // top left stepper motor drive pulley
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if (drive_pulley_offset.x) { // idler pulleys for offset stepper motor drive pulley
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translate(p3t)
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pulley_assembly(p3t_type); // toothed idler
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translate(p3p)
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pulley_assembly(p3p_type); // plain idler
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translate(p3p)
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pulley_assembly(p3p_type); // plain idler
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}
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translate(p4)
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pulley_assembly(p4_type); // y-carriage plain pulley
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}
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translate(p4)
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pulley_assembly(p4_type); // y-carriage plain pulley
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else { //motor in the back
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if (drive_pulley_offset.x ) { // idler pulleys for offset stepper motor drive pulley
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translate(p0)
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pulley_assembly(p0p_type); // y-carriage toothed pulley
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translate(p1)
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pulley_assembly(p1p_type); // bottom right toothed idler pulley
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//left bottom corner
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translate(p2)
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pulley_assembly(p2p_type); // toothed idler
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translate(p2p)
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pulley_assembly(p2p_type); // plain idler
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translate(p2d)
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hflip(hflip)
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pulley_assembly(p2d_type); // bottom left stepper motor drive pulley
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translate(p3t)
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pulley_assembly(p3p_type); // top left toothed idler
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translate(p4mb)
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pulley_assembly(p4t_type); // y-carriage plain pulley
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} else {
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translate(p0)
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pulley_assembly(p0_type); // y-carriage toothed pulley
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translate(p1)
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pulley_assembly(p1_type); // bottom right toothed idler pulley
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//left bottom corner
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translate(p2)
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hflip(hflip)
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pulley_assembly(p2d_type); // bottom left stepper motor drive pulley
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translate(p3t)
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pulley_assembly(p3t_type); // top left toothed idler
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translate(p4mb)
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pulley_assembly(p4_type); // y-carriage plain pulley
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}
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}
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}
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path0a = [
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@@ -169,8 +228,28 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
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belt = coreXY_belt(type);
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path0 = drive_pulley_offset.x == 0 ? concat(path0a, path0b) : drive_pulley_offset.x > 0 ? concat(path0a, path0c) : concat(path0a, path0d);
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path = concat([start_p], path0, [end_p]);
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path0 = drive_pulley_offset.x == 0 ? concat(path0a, path0b) : drive_pulley_offset.x > 0 ? concat(path0a, path0c) : concat(path0a, path0d);
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path_mb_0a = [
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[ p0.x, p0.y, pulley_od(p0_type) / 2 ],
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[ p1.x, p1.y, pulley_od(p1_type) / 2 ],
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[ p2.x, p2.y, pulley_od(p2d_type) / 2 ],
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[ p3t.x, p3t.y, pulley_od(p3t_type) / 2 ],
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[ p4mb.x, p4mb.y, -pulley_od(p4_type) / 2 ]
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];
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path_mb_0b = [
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[ p0.x, p0.y, pulley_od(p0_type) / 2 ],
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[ p1.x, p1.y, pulley_od(p1_type) / 2 ],
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[ p2p.x, p2p.y, pulley_od(p2p_type) / 2 ],
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[ p2d.x, p2d.y, -pulley_od(p2d_type) / 2 ],
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[ p2.x, p2.y, pulley_od(p2_type) / 2 ],
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[ p3t.x, p3t.y, pulley_od(p3t_type) / 2 ],
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[ p4mb.x, p4mb.y, -pulley_od(p4_type) / 2 ]
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];
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path_mb0 = drive_pulley_offset.x == 0 ? path_mb_0a : path_mb_0b;
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path = motor_back? concat([start_p], path_mb0, [end_p]):concat([start_p], path0, [end_p]);
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belt(type = belt,
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points = path,
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