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made the test cases work with the motor in the back

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Alex Verschoot
2025-02-16 12:23:20 +01:00
parent 38890400ac
commit 0b8ad93dc5
1 changed files with 38 additions and 29 deletions
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67
utils/core_xy.scad
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@@ -71,13 +71,15 @@ function coreXY_drive_plain_idler_offset(type) = //! Offset of plain drive idler
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 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
// y-carriage toothed pulley // y-carriage toothed pulley
p0_type = coreXY_toothed_idler(type); p0t_type = coreXY_toothed_idler(type);
p0p_type = coreXY_plain_idler(type); p0p_type = coreXY_plain_idler(type);
p0 = [ size.x / 2, -size.y / 2 - pulley_od(p0_type) / 2 + pos.y - separation_y / 2 ]; p0t = [ size.x / 2, -size.y / 2 - pulley_od(p0t_type) / 2 + pos.y - separation_y / 2 ];
p0p = [ size.x / 2, -size.y / 2 - pulley_od(p0p_type) / 2 + pos.y - separation_y / 2 ];
// bottom right toothed idler pulley // bottom right toothed idler pulley
p1_type = p0_type; p1t_type = p0t_type;
p1p_type = coreXY_plain_idler(type); p1p_type = p0p_type;
p1 = [ size.x / 2, -size.y / 2 ]; p1 = [ size.x / 2, -size.y / 2 ];
// bottom left anchor toothed idler pulley // bottom left anchor toothed idler pulley
@@ -86,13 +88,14 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
//drive type if the motor is in the back //drive type if the motor is in the back
p2d_type = coreXY_drive_pulley(type); p2d_type = coreXY_drive_pulley(type);
p2d = [ p2.x + drive_pulley_offset.x, p2d = [ lower_belt ? p2.x - drive_pulley_offset.x:p2.x + drive_pulley_offset.x,
p2.y + drive_pulley_offset.y p2.y + drive_pulley_offset.y
]; ];
// plain idler for offset stepper motor if the motor is in the back // plain idler for offset stepper motor if the motor is in the back
p2p_type = coreXY_plain_idler(type); p2p_type = coreXY_plain_idler(type);
p2p = [ p2.x + plain_idler_offset.x + drive_pulley_offset.x, p2p = [ lower_belt ? p2.x + plain_idler_offset.x - drive_pulley_offset.x : p2.x + plain_idler_offset.x + drive_pulley_offset.x,
p2.y + plain_idler_offset.y p2.y + plain_idler_offset.y
]; ];
@@ -104,7 +107,7 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
// toothed idler for offset stepper motor drive pulley if motor not in back // toothed idler for offset stepper motor drive pulley if motor not in back
p3t_type = coreXY_toothed_idler(type); p3t_type = coreXY_toothed_idler(type);
p3t = [ -size.x / 2 + (drive_pulley_offset.x > 0 ? 0 : plain_idler_offset.x + 2 * coreXY_drive_pulley_x_alignment(type)), p3t = [ -size.x / 2 + ((drive_pulley_offset.x > 0 || motor_back ) ? 0 : plain_idler_offset.x + 2 * coreXY_drive_pulley_x_alignment(type)),
size.y / 2 + coreXY_drive_pulley_x_alignment(type) size.y / 2 + coreXY_drive_pulley_x_alignment(type)
]; ];
@@ -119,7 +122,7 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
// plain idler for offset stepper motor drive pulley if motor not in back // plain idler for offset stepper motor drive pulley if motor not in back
p3p_type = p4_type; p3p_type = p4_type;
p3p = [ drive_pulley_offset.x > 0 ? p4.x : -p0.x - pulley_od(p0_type), p3p = [ drive_pulley_offset.x > 0 ? p4.x : -p0p.x - pulley_od(p0p_type),
size.y / 2 - pulley_od(p3p_type) / 2 - pulley_od(p3d_type) / 2 + plain_idler_offset.y size.y / 2 - pulley_od(p3p_type) / 2 - pulley_od(p3d_type) / 2 + plain_idler_offset.y
]; ];
@@ -127,7 +130,7 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
start_p = [ pos.x - size.x / 2 + x_gap / 2, -size.y / 2 + pos.y - separation_y / 2, 0 ]; start_p = [ pos.x - size.x / 2 + x_gap / 2, -size.y / 2 + pos.y - separation_y / 2, 0 ];
end_p = [ pos.x - size.x / 2 - x_gap / 2, -size.y / 2 + pos.y + separation_y / 2, 0 ]; end_p = [ pos.x - size.x / 2 - x_gap / 2, -size.y / 2 + pos.y + separation_y / 2, 0 ];
//p6_type = p0_type; //p6_type = p0p_type;
module show_pulleys(show_pulleys) {// Allows the pulley colour to be set for debugging module show_pulleys(show_pulleys) {// Allows the pulley colour to be set for debugging
if (is_list(show_pulleys)) if (is_list(show_pulleys))
@@ -139,10 +142,10 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
show_pulleys(show_pulleys) { show_pulleys(show_pulleys) {
if ( !motor_back ) { if ( !motor_back ) {
translate(p0) translate(p0t)
pulley_assembly(p0_type); // y-carriage toothed pulley pulley_assembly(p0t_type); // y-carriage toothed pulley
translate(p1) translate(p1)
pulley_assembly(p1_type); // bottom right toothed idler pulley pulley_assembly(p1t_type); // bottom right toothed idler pulley
translate(p2) translate(p2)
pulley_assembly(p2_type); // bottom left anchor toothed idler pulley pulley_assembly(p2_type); // bottom left anchor toothed idler pulley
@@ -162,7 +165,7 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
} }
else { //motor in the back else { //motor in the back
if (drive_pulley_offset.x ) { // idler pulleys for offset stepper motor drive pulley if (drive_pulley_offset.x ) { // idler pulleys for offset stepper motor drive pulley
translate(p0) translate(p0p)
pulley_assembly(p0p_type); // y-carriage plain pulley pulley_assembly(p0p_type); // y-carriage plain pulley
translate(p1) translate(p1)
pulley_assembly(p1p_type); // bottom right plain idler pulley pulley_assembly(p1p_type); // bottom right plain idler pulley
@@ -183,15 +186,21 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
translate(p4mb) translate(p4mb)
pulley_assembly(p4t_type); // y-carriage toothed pulley pulley_assembly(p4t_type); // y-carriage toothed pulley
} else { } else {
translate(p0) translate(p0t)
pulley_assembly(p0_type); // y-carriage toothed pulley pulley_assembly(p0t_type); // y-carriage toothed pulley
translate(p1) translate(p1)
pulley_assembly(p1_type); // bottom right toothed idler pulley pulley_assembly(p1t_type); // bottom right toothed idler pulley
//left bottom corner //left bottom corner
// bottom left stepper motor drive pulley
translate(p2) translate(p2)
hflip(hflip) if(lower_belt)
pulley_assembly(p2d_type); // bottom left stepper motor drive pulley hflip(hflip)
pulley_assembly(p2d_type);
else
hflip(!hflip)
pulley_assembly(p2d_type);
translate(p3t) translate(p3t)
pulley_assembly(p3t_type); // top left toothed idler pulley_assembly(p3t_type); // top left toothed idler
@@ -205,8 +214,8 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
} }
path0a = [ path0a = [
[ p0.x, p0.y, pulley_od(p0_type) / 2 ], [ p0p.x, p0p.y, pulley_od(p0p_type) / 2 ],
[ p1.x, p1.y, pulley_od(p1_type) / 2 ], [ p1.x, p1.y, pulley_od(p1p_type) / 2 ],
[ p2.x, p2.y, pulley_od(p2_type) / 2 ] [ p2.x, p2.y, pulley_od(p2_type) / 2 ]
]; ];
path0b = [ path0b = [
@@ -231,20 +240,20 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
path0 = drive_pulley_offset.x == 0 ? concat(path0a, path0b) : drive_pulley_offset.x > 0 ? concat(path0a, path0c) : concat(path0a, path0d); path0 = drive_pulley_offset.x == 0 ? concat(path0a, path0b) : drive_pulley_offset.x > 0 ? concat(path0a, path0c) : concat(path0a, path0d);
path_mb_0a = [ path_mb_0a = [
[ p0.x, p0.y, pulley_od(p0_type) / 2 ], [ p0p.x, p0p.y, pulley_od(p0p_type) / 2 ],
[ p1.x, p1.y, pulley_od(p1_type) / 2 ], [ p1.x, p1.y, pulley_od(p1p_type) / 2 ],
[ p2.x, p2.y, pulley_od(p2d_type) / 2 ], [ p2.x, p2.y, pulley_od(p2d_type) / 2 ],
[ p3t.x, p3t.y, pulley_od(p3t_type) / 2 ], [ p3t.x, p3t.y, pulley_od(p3t_type) / 2 ],
[ p4mb.x, p4mb.y, -pulley_od(p4_type) / 2 ] [ p4mb.x, p4mb.y, -pulley_od(p4_type) / 2 ]
]; ];
path_mb_0b = [ path_mb_0b = [
[ p0.x, p0.y, pulley_od(p0_type) / 2 ], [ p0t.x, p0t.y, pulley_od(p0t_type) / 2 ],
[ p1.x, p1.y, pulley_od(p1_type) / 2 ], [ p1.x, p1.y, pulley_od(p1p_type) / 2 ],
[ p2p.x, p2p.y, pulley_od(p2p_type) / 2 ], [ p2p.x, p2p.y, pulley_od(p2p_type) / 2 ],
[ p2d.x, p2d.y, -pulley_od(p2d_type) / 2 ], [ p2d.x, p2d.y, -pulley_od(p2d_type) / 2 ],
[ p2.x, p2.y, pulley_od(p2_type) / 2 ], [ p2.x, p2.y, pulley_od(p2p_type) / 2 ],
[ p3t.x, p3t.y, pulley_od(p3t_type) / 2 ], [ p3t.x, p3t.y, pulley_od(p3p_type) / 2 ],
[ p4mb.x, p4mb.y, -pulley_od(p4_type) / 2 ] [ p4mb.x, p4mb.y, -pulley_od(p4_type) / 2 ]
]; ];
@@ -258,18 +267,18 @@ module coreXY_half(type, size, pos, separation_y = 0, x_gap = 0, plain_idler_off
tooth_colour = lower_belt ? coreXY_lower_tooth_colour(type) : coreXY_upper_tooth_colour(type)); tooth_colour = lower_belt ? coreXY_lower_tooth_colour(type) : coreXY_upper_tooth_colour(type));
} }
module coreXY(type, size, pos, separation, x_gap = 0, plain_idler_offset = [0, 0], upper_drive_pulley_offset = [0, 0], lower_drive_pulley_offset = [0, 0], show_pulleys = false, left_lower = false) { //! Wrapper module to draw both belts of a coreXY setup module coreXY(type, size, pos, separation, x_gap = 0, plain_idler_offset = [0, 0], upper_drive_pulley_offset = [0, 0], lower_drive_pulley_offset = [0, 0], show_pulleys = false, left_lower = false, motor_back = false) { //! Wrapper module to draw both belts of a coreXY setup
translate([size.x / 2 - separation.x / 2, size.y / 2, -separation.z / 2]) { translate([size.x / 2 - separation.x / 2, size.y / 2, -separation.z / 2]) {
// lower belt // lower belt
hflip(!left_lower) hflip(!left_lower)
explode(25) explode(25)
coreXY_half(type, size, [size.x - pos.x - separation.x/2 - (left_lower ? x_gap : 0), pos.y], separation.y, x_gap, plain_idler_offset, [-lower_drive_pulley_offset.x, lower_drive_pulley_offset.y], show_pulleys, lower_belt = true, hflip = true); coreXY_half(type, size, [size.x - pos.x - separation.x/2 - (left_lower ? x_gap : 0), pos.y], separation.y, x_gap, plain_idler_offset, [-lower_drive_pulley_offset.x, lower_drive_pulley_offset.y], show_pulleys, lower_belt = true, hflip = true, motor_back);
// upper belt // upper belt
translate([separation.x, 0, separation.z]) translate([separation.x, 0, separation.z])
hflip(left_lower) hflip(left_lower)
explode(25) explode(25)
coreXY_half(type, size, [pos.x + separation.x/2 + (left_lower ? x_gap : 0), pos.y], separation.y, x_gap, plain_idler_offset, upper_drive_pulley_offset, show_pulleys, lower_belt = false, hflip = false); coreXY_half(type, size, [pos.x + separation.x/2 + (left_lower ? x_gap : 0), pos.y], separation.y, x_gap, plain_idler_offset, upper_drive_pulley_offset, show_pulleys, lower_belt = false, hflip = false, motor_back);
} }
} }