// todo
-// - fix motor holder wall removal so it is sensible and actually
-// removes the right thing
// - fix changing board_thickness, add way to specify # of bolts in
// side of frame (assume even spacing for now)
include <configuration.scad>
module zmotorholder(thickness=(frame_type == frame_single ? 38 : 23), bottom_thickness=5){
- position_y = board_to_xz_distance + zaxis_delta_y + zmotor_delta_y;
+ // fixme: position_y magic number (x-end leadscrew placement has
+ // same issue -- should share some base value + offset for part
+ // being generated)
+ position_y = 26 + zaxis_delta_y + zmotor_delta_y;
position_x = board_to_xz_distance + zaxis_delta_x + zmotor_delta_x;
difference(){
union(){
// Motor holding part
difference(){
union(){
- zrodholder(thickness=thickness, xlen=45 + zmotor_delta_x + zaxis_delta_x, ylen=48 + 5 + zmotor_delta_y + zaxis_delta_y, zdelta=((i_want_to_use_single_plate_dxf_and_make_my_z_weaker == 0) ? 0 : 5), bottom_x = 50 + zaxis_delta_x + zmotor_delta_x, bottom_y = 15 + zmotor_delta_y + zaxis_delta_y, am_top=0, bottom_thickness=bottom_thickness);
+ zrodholder(thickness=thickness, xlen=board_to_xz_distance+21 + zmotor_delta_x + zaxis_delta_x, ylen=48 + 5 + zmotor_delta_y + zaxis_delta_y, zdelta=((i_want_to_use_single_plate_dxf_and_make_my_z_weaker == 0) ? 0 : 5), bottom_x = board_to_xz_distance-12 + zaxis_delta_x + zmotor_delta_x, bottom_y = 15 + zmotor_delta_y + zaxis_delta_y, am_top=0, bottom_thickness=bottom_thickness);
translate([position_x, position_y, 0]) {
- nema17(places=[1, 1, 1, 1], h=bottom_thickness + layer_height, $fn=23, shadow=layer_height + 2);
+ nema17(places=[0, 1, 1, 1], h=bottom_thickness + layer_height, $fn=23, shadow=false/*layer_height + 2*/);
}
}
// remove any interfering walls
- translate([position_x, position_y, layer_height + 2 + 21 +3]) {
- cube([43 + zmotor_delta_x + zaxis_delta_x,43,42], center = true);
+ translate([5 + zaxis_delta_x + zmotor_delta_x, 5 + zaxis_delta_y + zmotor_delta_y, -42.001]) {
+ cube([43,43,42]);
}
// motor rotor clearance
translate([position_x, position_y, 0]) {
- cylinder(r=11,h=20, center = true);
+ #cylinder(r=11,h=20, center = true);
}
// motor screw holes
// not use this to offset the leadscrew hole either.
translate([position_x, position_y, thickness]) {
mirror([0, 0, 1]) translate([0, 0, thickness-8])
- #nema17(places=[1, 1, 1, 1], holes=true, h=bottom_thickness + 1, $fn=small_hole_segments);
+ nema17(places=[1, 1, 1, 1], holes=true, h=bottom_thickness + 1, $fn=small_hole_segments);
//shadow=-6 + layer_height);
}
}
module zrodholder(thickness=(frame_type == frame_single ? 14 : 15), bottom_thickness=5, ylen=44, xlen=34, zdelta=0, bottom_y=14, bottom_x=14, am_top=1){
holder_inner_r = 9;
holder_inner_r2 = 2;
- smooth_rod_insert_radius = bushing_z[0] + 5 * single_wall_width;
+ smooth_rod_insert_radius = bushing_z[0] + 6 * single_wall_width;
difference(){
union(){
difference(){
union() {
//piece along the flat side of a board
- cube_fillet([bottom_x, ylen, bottom_thickness], vertical=[8, 3, 0, 0]);
+ cube_fillet([bottom_x, ylen, bottom_thickness], vertical=[8, 3, 0, 0]);
if (frame_type == frame_alu) {
top_radius = am_top ? thickness : thickness / 3;
- cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], top = [top_radius, 0, 0, 0]);
+ translate ([0, 0, -thickness + bottom_thickness]) cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], bottom = [top_radius, 0, 0, 0]);
// FIXME: make rear/top bit optional, but don't remove entirely
// (printer seems to make less noise with the rear bit)
%if (am_top) {
// rear bracket
- translate ([-board_thickness - 5, 0, 0])
- cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], top = [top_radius, 0, 0, 0]);
- translate ([-board_thickness, 5, 0])
+ translate ([-board_thickness - 5, 0, -thickness + bottom_thickness])
+ cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], bottom = [top_radius, 0, 0, 0]);
+ translate ([-board_thickness, 5, bottom_thickness/2])
cube ([board_thickness, ylen - 6, bottom_thickness/2]);
}
}
}
// leadscrew bearing hole is cut from this
if (am_top) {
- lead_bearing_y = board_to_xz_distance + zaxis_delta_y + zmotor_delta_y;
+ // fixme: position_y magic number (x-end leadscrew placement has
+ // same issue -- should share some base value + offset for part
+ // being generated)
+ // FIXME: share these values with the subtracted part
+ lead_bearing_y = 26 + zaxis_delta_y + zmotor_delta_y;
lead_bearing_x = board_to_xz_distance + zaxis_delta_x + zmotor_delta_x;
- translate ([lead_bearing_x, lead_bearing_y, 0]) cylinder (d = bearing_608[0] + 1 + 2, h = bearing_608[2] + layer_height*4);
+ translate ([lead_bearing_x, lead_bearing_y, -(bearing_608[2] + layer_height * 6 - bottom_thickness)]) cylinder (d = bearing_608[0] + single_wall_width * 6, h = bearing_608[2] + layer_height*6);
}
//piece along cut side of the board
if (frame_type == frame_box) {
translate ([0, 0 /* zaxis_delta_y */, 0]) {
// back
- translate([-board_thickness, 0, 0]) {
+ translate([-board_thickness, 0, -thickness + bottom_thickness]) {
cube_fillet([board_thickness, side_thickness, thickness], vertical = [0, 0, 0, 0], top = [0, 0, 0, 0]);
}
// front
- //cube_fillet([am_top ? board_to_xz_distance + zaxis_delta_x - smooth_rod_insert_radius : xlen + zaxis_delta_x , side_thickness, thickness], vertical = [2, 0, 0, 0], top = [0, 0, 0, thickness]);
- cube_fillet([am_top ? board_to_xz_distance + zaxis_delta_x - smooth_rod_insert_radius : xlen , side_thickness, thickness / (am_top ? 1 : 1.5)], vertical = [2, 0, 0, 0], top = [0, 0, 0, thickness]);
-
- // extra support for motor
- if (!am_top) {
- translate ([0, ylen - side_thickness, 0]) cube_fillet([xlen/* board_to_xz_distance + zaxis_delta_x - smooth_rod_insert_radius */ , side_thickness, thickness/1.5], vertical = [2, 0, 0, 0], top = [0, 0, 0, thickness]);
- }
+ front_support_thickness = thickness / (am_top ? 1 : 1.5);
+ translate ([0, 0, -front_support_thickness + bottom_thickness]) cube_fillet([am_top ? board_to_xz_distance + zaxis_delta_x - smooth_rod_insert_radius : xlen , side_thickness, front_support_thickness], vertical = [0, 0, 0, 0], bottom = [0, 0, 0, thickness]);
}
- // extra support along edge of smooth rod hole
- radius_diff = smooth_rod_insert_radius - bushing_z[0];
- hull () {
- translate([-board_thickness/3, -zaxis_delta_y/3, 0]) {
- cube_fillet([board_thickness/3 + board_to_xz_distance + zaxis_delta_x - bushing_z[0] , -zaxis_delta_y/3 , thickness/2], vertical = [2, 0, 4, 0], top = [0, 0, 4, thickness/2]);
- }
- translate([board_to_xz_distance/2, -zaxis_delta_x + radius_diff/6, 0]) {
- cube_fillet([board_to_xz_distance/2 + zaxis_delta_x + smooth_rod_insert_radius*0.75, radius_diff/3 , bottom_thickness*2], vertical = [2, 0, 4, bushing_z[0] * smooth_rod_insert_radius/bushing_z[0]], top = [0, 0, 2, thickness/4]);
+ if (zaxis_delta_x > 0 || zaxis_delta_y < 0) {
+ // extra support along edge of smooth rod hole, if it has been moved away from the frame
+ radius_diff = smooth_rod_insert_radius - bushing_z[0];
+ hull () {
+ translate([-board_thickness/3, zaxis_delta_x/3, -(thickness/2 - bottom_thickness)]) {
+ cube_fillet([board_thickness/3 + board_to_xz_distance + zaxis_delta_x - bushing_z[0] , -zaxis_delta_y/3 , thickness/2], vertical = [2, 0, 4, 0], bottom = [0, 0, 4, thickness/2]);
+ }
+ translate([board_to_xz_distance/2, zaxis_delta_y + radius_diff/6, - bottom_thickness]) {
+ cube_fillet([board_to_xz_distance/2 + zaxis_delta_x + smooth_rod_insert_radius*0.75, radius_diff/3 , bottom_thickness*2], vertical = [2, 0, 4, bushing_z[0] * smooth_rod_insert_radius/bushing_z[0]], bottom = [0, 0, 2, thickness/4]);
+ }
}
}
} else {
cube_fillet([board_thickness/2 + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness], $fn=99);
}
//smooth rod insert
- translate([board_to_xz_distance - z_delta + zaxis_delta_x, 9 + zaxis_delta_y, 0])
- cylinder(h=bottom_thickness * (am_top ? 1.75 : 1.75), r=smooth_rod_insert_radius);
+ rod_insert_h = bottom_thickness * (am_top ? 1.75 : 1.75);
+ translate([board_to_xz_distance - z_delta + zaxis_delta_x, 9 + zaxis_delta_y, -rod_insert_h + bottom_thickness])
+ cylinder(h=rod_insert_h, r=smooth_rod_insert_radius);
}
// === difference ===
//smooth rod hole
- #translate([board_to_xz_distance - z_delta + zaxis_delta_x, 9 + zaxis_delta_y, -1]) cylinder(h=am_top ? thickness+20 : bottom_thickness, r=bushing_z[0] + single_wall_width / 4);
+ rod_insert_hole_h = am_top ? thickness+20 : bottom_thickness;
+ translate([board_to_xz_distance - z_delta + zaxis_delta_x, 9 + zaxis_delta_y, bottom_thickness - rod_insert_hole_h]) cylinder(h=rod_insert_hole_h + 1, r=bushing_z[0] + single_wall_width / 4);
//inside rouned corner
if (frame_type != frame_alu) {
translate([0, 5, -1]) cylinder(r=0.8, h=100, $fn=8);
// leadscrew hole
if (am_top) {
- lead_bearing_y = board_to_xz_distance + zaxis_delta_y + zmotor_delta_y;
+ // fixme: position_y magic number (x-end leadscrew placement has
+ // same issue -- should share some base value + offset for part
+ // being generated)
+ // FIXME: share these values with the solid part
+ lead_bearing_y = 26 + zaxis_delta_y + zmotor_delta_y;
lead_bearing_x = board_to_xz_distance + zaxis_delta_x + zmotor_delta_x;
- translate ([lead_bearing_x, lead_bearing_y, 0]) {
- difference () {
- union () {
- translate ([0, 0, 1]) cylinder (d = 10.8, h = bearing_608[2]*2);
- translate ([0, 0, -1]) cylinder (d = 23, h = bearing_608[2]+1);
- }
+ translate ([lead_bearing_x, lead_bearing_y, bottom_thickness - bearing_608[2]]) {
+ union () {
+ translate ([0, 0, -bearing_608[2]*2 + 1]) cylinder (d = 10.8, h = bearing_608[2]*2);
+ translate ([0, 0, 0]) cylinder (d = bearing_608[0], h = bearing_608[2]+1);
}
}
}
}
} else if (frame_type == frame_alu) {
// three screws on front
- translate([18, ylen - board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, -90, 0]) plate_screw();
- translate([18, 5 + board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, -90, 0]) plate_screw();
- translate([18, 5 + board_thickness/2, thickness - board_thickness/2]) rotate([0, -90, 0])
+ translate([18, ylen - board_thickness/2, bottom_thickness/2 - board_thickness/2 + zdelta]) rotate([0, -90, 0]) plate_screw();
+ translate([18, 5 + board_thickness/2, bottom_thickness/2 - board_thickness/2 + zdelta]) rotate([0, -90, 0]) plate_screw();
+ translate([18, 5 + board_thickness/2, -thickness + bottom_thickness + board_thickness/2]) rotate([0, -90, 0])
plate_screw();
// motor mount screw for opposite extrusion
- translate([18, ylen - board_thickness/2, thickness - board_thickness/2]) rotate([0, -90, 0])
+ translate([18, ylen - board_thickness/2, -thickness + bottom_thickness + board_thickness/2]) rotate([0, -90, 0])
plate_screw();
// back plate
- translate([-board_thickness-18, ylen - board_thickness/2, thickness - board_thickness/2]) rotate([0, 90, 0])
+ translate([-board_thickness-18, ylen - board_thickness/2, -thickness + bottom_thickness + board_thickness/2]) rotate([0, 90, 0])
plate_screw();
- translate([-board_thickness-18, 5 + board_thickness/2, thickness - board_thickness/2]) rotate([0, 90, 0])
+ translate([-board_thickness-18, 5 + board_thickness/2, -thickness + bottom_thickness + board_thickness/2]) rotate([0, 90, 0])
plate_screw();
- translate([-board_thickness-18, ylen - board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, 90, 0]) plate_screw();
- #translate([-board_thickness-18, 5 + board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, 90, 0]) plate_screw();
+ translate([-board_thickness-18, ylen - board_thickness/2, bottom_thickness/2 - board_thickness/2 + zdelta]) rotate([0, 90, 0]) plate_screw();
+ translate([-board_thickness-18, 5 + board_thickness/2, bottom_thickness/2 - board_thickness/2 + zdelta]) rotate([0, 90, 0]) plate_screw();
//side screws
- #translate([-board_thickness/2, -13, thickness-board_thickness/2]) rotate([-90, 0, 0]) plate_screw();
- translate([-board_thickness/2, -13, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([-90, 0, 0]) plate_screw();
+ translate([-board_thickness/2, -13, bottom_thickness + board_thickness/2 - thickness]) rotate([-90, 0, 0]) plate_screw();
+ translate([-board_thickness/2, -13, bottom_thickness/2 - board_thickness/2 + zdelta]) rotate([-90, 0, 0]) plate_screw();
} else if (frame_type == frame_box) {
translate([16, 30, bottom_thickness+4]) rotate([0, -90, 0]) {
plate_screw();
}
if (frame_type == frame_alu) {
+ //zmotorholder(thickness=55, bottom_thickness=6);
// 2020 aluminum frame parts are larger
- translate([0, -60, 0]) zmotorholder(thickness=55, bottom_thickness=6);
- translate([0, 60, 0]) mirror([0, 1, 0]) zmotorholder(thickness=55, bottom_thickness=6);
-
- translate([110 + board_thickness, board_thickness+10, 0]) rotate([0,0,90]) zrodholder(thickness=board_thickness * 2 + 5, ylen = board_thickness * 2 + 10, bottom_x=48, bottom_thickness=6);
- translate([110 + board_thickness, -(board_thickness+10), 0]) rotate([0, 0, -90]) mirror([0, 1, 0]) zrodholder(thickness=board_thickness * 2 + 5, ylen = board_thickness * 2 + 10, bottom_x=48, bottom_thickness=6);
+ rotate ([0, 180, 0]) {
+ translate([0, -60, 0]) zmotorholder(thickness=55, bottom_thickness=6);
+ translate([0, 60, 0]) mirror([0, 1, 0]) zmotorholder(thickness=55, bottom_thickness=6);
+ translate([110 + board_thickness, board_thickness+10, 0]) rotate([0,0,90]) zrodholder(thickness=board_thickness * 2 + 5, ylen = board_thickness * 2 + 10, bottom_x=board_to_xz_distance+17 + zaxis_delta_x, bottom_thickness=6);
+ translate([110 + board_thickness, -(board_thickness+10), 0]) rotate([0, 0, -90]) mirror([0, 1, 0]) zrodholder(thickness=board_thickness * 2 + 5, ylen = board_thickness * 2 + 10, bottom_x=board_to_xz_distance+17 + zaxis_delta_x, bottom_thickness=6);
+ }
}
else {
translate([10, -50, 0]) zmotorholder();
HCoop / clinton / prusa3.git / blobdiff