include <configuration.scad>
-module zmotorholder(thickness=13){
+module zmotorholder(thickness=(i_am_box == 0 ? 38 : 23), bottom_thickness=5){
difference(){
union(){
// Motor holding part
difference(){
union(){
- zrodholder(thickness=thickness, xlen=45, ylen=45);
+ zrodholder(thickness=thickness, xlen=45, ylen=44, zdelta=((i_want_to_use_single_plate_dxf_and_make_my_z_weaker == 0) ? 0 : 5));
translate([board_to_xz_distance, board_to_xz_distance, 0]) {
- nema17(places=[0,1,1,1], h=thickness);
+ nema17(places=[0, 1, 1, 1], h=bottom_thickness + layer_height, $fn=23, shadow=layer_height + 2);
}
}
// motor screw holes
translate([board_to_xz_distance, board_to_xz_distance, thickness]) {
- mirror([0,0,1]) translate([0,0,thickness-8])
- nema17(places=[0,1,1,1], holes=true, h=thickness, shadow=5);
+ mirror([0, 0, 1]) translate([0, 0, thickness-8])
+ nema17(places=[0, 1, 1, 1], holes=true, h=bottom_thickness + 1, $fn=small_hole_segments);
+ //shadow=-6 + layer_height);
}
}
}
}
-module zrodholder(thickness=13, ylen=40, xlen=34){
+module zrodholder(thickness=(i_am_box == 0 ? 14 : 15), bottom_thickness=5, ylen=44, xlen=34, zdelta=0){
+ holder_inner_r = 9;
+ holder_inner_r2 = 2;
difference(){
union(){
difference(){
union(){
//piece along the flat side of a board
- cube_fillet([14, ylen, thickness], vertical=[3,3,0,0]);
+ cube_fillet([14, ylen, bottom_thickness], vertical=[8, 3, 0, 0]);
+ cube_fillet([5, ylen, thickness], vertical=[3, 3, 0, 0], top = [thickness / 1.7, 0, 0, 5]);
//hole for Z axis is thru this
- cube_fillet([xlen, 14, thickness], vertical=[0,0,0,3] );
+ cube_fillet([xlen, 14, bottom_thickness], vertical=[3, 0, 0, 3]);
+ translate([14, 14, 0]) {
+ //large fillet that makes it stiffer by lot. Thanks to Marcus Wolschon
+ difference(){
+ cube([holder_inner_r, holder_inner_r, bottom_thickness]);
+ translate([holder_inner_r, holder_inner_r, -0.5])
+ cylinder(r=holder_inner_r, h=bottom_thickness + 1);
+ }
+ }
+ translate([5, 5, 0]) {
+ difference(){
+ cube([holder_inner_r2, holder_inner_r2, thickness - 5.5]);
+ translate([holder_inner_r2, holder_inner_r2, -0.5])
+ cylinder(r=holder_inner_r2, h=thickness + 1, $fn=20);
+ }
+ }
//piece along cut side of the board
- translate([-board_thickness,0,0]) cube_fillet([board_thickness*2, 5, thickness], radius=2);
+ if (i_am_box == 1) {
+ translate([-board_thickness, 0, 0])
+ cube_fillet([board_thickness + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness], $fn=99);
+ } else {
+ translate([-board_thickness/2, 0, 0])
+ 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, 9, 0])
+ cylinder(h=bottom_thickness / 2, r=(bushing_z[0] + 5 * single_wall_width));
}
//smooth rod hole
- translate([board_to_xz_distance,5+(smooth_bar_diameter/2),-1]) cylinder(h=board_thickness+2, r=(smooth_bar_diameter/2));
+ translate([board_to_xz_distance - z_delta, 9, -1]) cylinder(h=board_thickness+20, r=bushing_z[0] + single_wall_width / 4);
//inside rouned corner
- translate([0,5,-1]) cylinder(r=1.2, h=thickness+2, $fn=8);
+ translate([0, 5, -1]) cylinder(r=0.8, h=100, $fn=8);
//side screw
- translate([-board_thickness/2, 0, thickness/2-1.5]) rotate([-90, 0, 0]) screw(h=30, r_head=4);
- //front screw
- translate([14+7, board_to_xz_distance +2.4, thickness/2+2.1]) rotate([0, -90, 0]) {
- #screw(head_drop=12, h=122, r_head=4);
- translate([0,0,-20]) cylinder(r=3, h=20, center=true);
+ //translate([-board_thickness/2, 0, thickness/2-1.5]) rotate([-90, 0, 0]) screw(h=30, r_head=4);
+ //front screws
+ if (i_am_box != 1) {
+ //single plate has both screws on front
+ translate([16, 35, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) {
+ plate_screw();
+ }
+ translate([16, 15, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) {
+ plate_screw();
+ }
+ //motor mount has third screw
+ translate([16, 25, bottom_thickness + 4.5 + zdelta + 20]) rotate([0, -90, 0]) {
+ plate_screw();
+ }
+ } else {
+ translate([16, 30, bottom_thickness+4]) rotate([0, -90, 0]) {
+ plate_screw();
+ }
+ //side screw
+ translate([-board_thickness/2, -11, thickness/2]) rotate([-90, 0, 0]) plate_screw();
}
}
}
}
}
-
-module bearing_insert(r1=4, r2=2.4, h=7, $fn=3){
- difference(){
- cylinder(r=r1, h=h, $fn=$fn);
- translate([0,0,-0.1]) cylinder(r=r2, h=h+0.2, $fn=$fn);
- }
-}
-
-translate([0, -2, 0]) mirror([0,1,0]) zmotorholder();
-translate([0,2,0]) zmotorholder();
-
-translate([21,-59,0]) zrodholder(bearing_constraint=z_rod_constraint);
-translate([20,59,0]) mirror([0,1,0]) zrodholder(bearing_constraint=z_rod_constraint);
-
+translate([10, -50, 0]) zmotorholder();
+translate([0, 50, 0]) mirror([0, 1, 0]) zmotorholder();
+translate([67, 14, 0]) rotate([0,0,90]) zrodholder();
+translate([77, -14, 0]) rotate([0, 0, -90]) mirror([0, 1, 0]) zrodholder();
HCoop / clinton / prusa3.git / blobdiff