* @name Z Axis Motor Holder
* @category Printed
*/
-
+
/**
* @id zRodHolder
* @name Z Axis Rod Holder
* @category Printed
*/
-
+
+// 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){
cube([43 + zmotor_delta_x + zaxis_delta_x,43,42], center = true);
}
+ // motor rotor clearance
+ translate([position_x, position_y, 0]) {
+ 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=[0, 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);
}
}
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=[3, 3, 0, 0], top = [top_radius, 0, 0, 5]);
+ cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], top = [top_radius, 0, 0, 0]);
- if (am_top) {
+ // 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=[3, 3, 0, 0], top = [top_radius, 5, 0, 0]);
+ cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], top = [top_radius, 0, 0, 0]);
translate ([-board_thickness, 5, 0])
cube ([board_thickness, ylen - 6, bottom_thickness/2]);
}
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 if (frame_type == frame_alu) {
- // split piece in front of and behind into separate pieces
- translate([-board_thickness, 0, 0]) {
- cube_fillet([board_thickness, 5.0, thickness], vertical = [0, 0, 0, 0], top = [0, 0, 0, 0]);
- }
+ side_thickness = 5.0;// - zaxis_delta_y;
- cube_fillet([am_top ? board_to_xz_distance + zaxis_delta_y - smooth_rod_insert_radius : xlen + zaxis_delta_y , 5.0, thickness], vertical = [2, 0, 0, 0], top = [0, 0, 0, thickness]);
+ translate ([0, 0 /* zaxis_delta_y */, 0]) {
+ // back
+ translate([-board_thickness, 0, 0]) {
+ 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]);
+ }
+ }
// extra support along edge of smooth rod hole
radius_diff = smooth_rod_insert_radius - bushing_z[0];
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 ([0, 0, bearing_608[2]-layer_height]) cylinder (d = 23, h = layer_height);
+ translate ([0, 0, bearing_608[2]-layer_height*2]) cylinder (d = 23 - single_wall_width/2, h = layer_height);
}
}
}