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- // 3d printer specific
- screw_gap = 0.3;
- nut_gap = -0.1;
-
- dispenser_top_dia = 200;
- dispenser_top_height = 108;
- dispenser_mid_dia = 35.5;
- dispenser_nozzle_top_height = 45;
- dispenser_nozzle_top_dia = 35.3;
- dispenser_nozzle_mid_height = 20;
- dispenser_nozzle_mid_dia = 40;
- dispenser_nozzle_cap_height = 17;
- dispenser_nozzle_cap_dia_1 = 5.8;
- dispenser_nozzle_cap_dia_2 = dispenser_nozzle_mid_dia;
- dispenser_nozzle_end_length = 10;
- dispenser_nozzle_end_dia_1 = 3.4;
- dispenser_nozzle_end_dia_2 = dispenser_nozzle_cap_dia_1;
- dispenser_wall = 3;
- dispenser_handle_dia = 21;
- dispenser_handle_length = 100;
- dispenser_handle_angle = 38;
-
- dispenser_arm_dia = 7.0;
- dispenser_arm_len = 250;
- dispenser_arm_height = 75;
- dispenser_arm_tab_off = 21;
- dispenser_arm_tab_hole_off = 14;
- dispenser_arm_handle_overlap = 20;
- dispenser_arm_handle_width = 20;
- dispenser_arm_handle_len = 30;
- dispenser_arm_handle_height = 2;
- dispenser_arm_handle_y = 10;
- dispenser_arm_handle_z = 15;
-
- rail_wheel_height = 11;
- rail_wheel_center_height = 5;
- rail_wheel_outer = 24;
- rail_wheel_mid = 18;
- rail_wheel_inner = 5;
-
- nema17_len = 40;
- nema17_size = 42.3;
- nema17_hole_off = 31.0 / 2;
- nema17_hole_size = 3.0;
- nema17_shaft_size = 5.0;
- nema17_shaft_length = 24.0;
- nema17_center_size = 22.0;
- nema17_center_height = 2.0;
-
- motor_mount_height = 8;
- motor_mount_length = 35;
- motor_mount_l = nema17_size + motor_mount_length;
- motor_mount_hole_size_nominal = 5;
- motor_mount_hole_size = motor_mount_hole_size_nominal + screw_gap;
- motor_mount_hole_off = motor_mount_length - 15;
-
- belt_width = 6;
- belt_pitch = 2;
- belt_thickness = 1.35;
-
- /**********************************
- ************ Extruder ************
- **********************************/
-
- function dia_from_teeth(teeth) = teeth * belt_pitch / 3.14159;
-
- pulley_teeth_height = belt_width + 4;
- pulley_mount_height = 5;
- pulley_mount_dia = 8;
- pulley_height = pulley_teeth_height + pulley_mount_height;
-
- large_teeth = 60;
- small_teeth = 20;
-
- large_dia = dia_from_teeth(large_teeth);
- small_dia = dia_from_teeth(small_teeth);
- perimeter_large_wheel = large_dia * 3.14159;
- perimeter_small_wheel = small_dia * 3.14159;
-
- axis_diameter = 5.0;
- axis_hole_diameter = axis_diameter + screw_gap;
-
- // MR115 2RS
- bearing_inner = axis_diameter;
- bearing_outer = 11.0 + screw_gap;
- bearing_height = 4.0;
-
- belt_length = 200;
- belt_length_wheels = perimeter_large_wheel / 2 + perimeter_small_wheel / 2;
- belt_length_center = belt_length - belt_length_wheels;
- gears_dist = belt_length_center / 2;
-
- gear_stages = 1;
- gear_stage_height = pulley_height + 2;
-
- gear_stages_dist = (bearing_height + 1) * 2;
- gearbox_wall = gear_stages_dist; //bearing_height + 1;
-
- gearbox_gap = 2;
- gearbox_height = gears_dist + large_dia + (gearbox_wall + gearbox_gap) * 2;
- gearbox_width = large_dia + (gearbox_wall + gearbox_gap) * 2;
- gearbox_depth = 2 * gearbox_wall + gear_stages * gear_stage_height + (gear_stages - 1) * gear_stages_dist;
-
- extruder_travel = 60;
-
- piston_dia = 30;
- piston_height = 30;
- piston_gap = 0.1;
- piston_wall = 3;
- piston_radius = 3;
- piston_bottom_gap = piston_wall + 10;
- cylinder_dia = piston_dia + 2 * (piston_wall + piston_gap);
- cylinder_height = piston_height + extruder_travel;
-
- actuator_length = 100;
-
- extruder_lever_width = 10;
- extruder_lever_depth = 5;
- extruder_lever_holes = 4.2; // TODO
- extruder_lever_hole_dist = extruder_travel / 2;
- extruder_lever_length = extruder_lever_hole_dist + 10;
-
- extruder_wall_screw = 3.0;
- extruder_wall_hole_screw = extruder_wall_screw + screw_gap;
- extruder_wall_hole_nut = extruder_wall_screw + nut_gap;
- extruder_wall_hole_depth = 8.0;
-
- additional_piston_offset = 8;
-
- /***********************************
- ************** Table **************
- ***********************************/
-
- // size of woking area
- plate_x = 250;
- plate_y = 350;
- plate_z = 5;
-
- plate_mount_screws_nominal = 5.0;
- plate_mount_screws_distance_x = 60;
- plate_mount_screws_distance_y = 80;
- plate_mount_screw_hole = plate_mount_screws_nominal + screw_gap;
-
- belt_slot_width = belt_width + 4;
- belt_slot_depth = belt_thickness + 2;
- belt_mount_width = belt_slot_width + 2;
- belt_mount_depth = belt_slot_depth + 4;
- belt_mount_full_width = belt_mount_width * 3;
-
- y_carriage_add_material_around_holes = 10;
- y_carriage_h = 10;
- y_carriage_rail_dist = 6.5;
-
- y_carriage_post_dia = 2 * 13 / sqrt(3);
- y_carriage_post_screw = 5.0;
- y_carriage_post_hole_off = 2;
- y_carriage_post_center = 1;
- y_carriage_post_screw_hole = y_carriage_post_screw + nut_gap;
- y_carriage_post_len = y_carriage_rail_dist - rail_wheel_height / 2 + 10;
- echo("y_carriage_post_len", y_carriage_post_len);
-
- eccentric_height_main = 8.5;
- eccentric_height_inset = 2.4;
- eccentric_dia_inset = 7.3;
- eccentric_dia_main = 11.5;
- eccentric_hole_off = 0.75;
- eccentric_screw_hole = y_carriage_post_screw_hole + 2 * eccentric_hole_off;
- eccentric_height_add = y_carriage_post_len - eccentric_height_main;
- eccentric_inset_wall = 15.0;
- eccentric_inset_hole = eccentric_height_inset + 0.6;
- eccentric_screw_hole_h = 6.5;
- eccentric_screw_hole_dia = 15.0 + 2 * eccentric_hole_off;
-
- use_custom_eccentric = true;
-
- y_carriage_wheel_off_x = 20.4;
- y_carriage_wheel_off_y = 28;
-
- y_carriage_pulley_off = y_carriage_rail_dist - rail_wheel_height / 2 + 10;
-
- y_carriage_x = plate_mount_screws_distance_x + 2 * y_carriage_add_material_around_holes;
- y_carriage_y = plate_mount_screws_distance_y + 2 * y_carriage_add_material_around_holes;
-
- y_carriage_wheel_x_dist = y_carriage_x - 2 * y_carriage_wheel_off_x;
- y_carriage_wheel_y_dist = y_carriage_y - 2 * y_carriage_wheel_off_y;
-
- x_carriage_holder_w = y_carriage_x;
- x_carriage_holder_l = (y_carriage_y - 20) / 2;
- x_carriage_holder_h = 4;
- x_carriage_holder_rail_hole_dist = x_carriage_holder_w - 20;
- x_carriage_holder_hole_off = x_carriage_holder_h + 10;
-
- ideal_belt_pulley_dia = 20 - belt_thickness * 2 + y_carriage_rail_dist + belt_thickness / 4;
- belt_pulley_off = y_carriage_rail_dist / 2 - belt_thickness / 4;
-
- teethcount = round((ideal_belt_pulley_dia + belt_thickness) * 3.14159 / belt_pitch);
- echo("belt pulley teeth count", teethcount);
- real_belt_pulley_dia = teethcount * belt_pitch / 3.14159;
- belt_pulley_width = belt_width + 4;
- belt_pulley_tooth_width = belt_width + 2;
-
- belt_pulley_rim = 1;
- belt_pulley_axis_hole = nema17_shaft_size + screw_gap;
- belt_pulley_fix_dia = 3.0 + nut_gap;
-
- belt_tensioner_screw = 3.0;
- belt_tensioner_screw_hole = belt_tensioner_screw + screw_gap;
- belt_tensioner_wall = 5;
- belt_tensioner_mount_depth = 20;
- belt_tensioner_travel = 15;
- belt_tensioner_moving_height = 10;
- belt_tensioner_moving_len = real_belt_pulley_dia / 2 + 20;
- belt_tensioner_moving_overlap = 10;
- belt_tensioner_moving_gap = 0.3;
- belt_tensioner_diff_len = real_belt_pulley_dia / 2 + belt_tensioner_moving_len - belt_tensioner_moving_overlap + belt_tensioner_travel + 5;
- belt_tensioner_diff_width = belt_pulley_width + 2 * belt_tensioner_moving_gap + 0.5;
- belt_tensioner_diff_height = belt_tensioner_moving_height + 0.5;
-
- y_axis_travel_len = plate_y + 15;
- y_axis_rail_len = y_axis_travel_len + y_carriage_y + motor_mount_length + belt_tensioner_mount_depth;
-
- x_axis_travel_len = plate_x + 15;
- x_axis_rail_len = x_axis_travel_len + y_carriage_y + motor_mount_length + belt_tensioner_mount_depth;
-
- // TODO!
- point_that_reaches_everywhere_x = -7.5;
- point_that_reaches_everywhere_y = -17.5;
-
- use_anim = false;
- x_axis_position = 1.0;
- y_axis_position = 0.5;
-
- anim_pos_x = use_anim ? sin($t * 360) * 0.5 + 0.5 : x_axis_position;
- anim_pos_y = use_anim ? sin($t * 360 + 90) * 0.5 + 0.5 : y_axis_position;
- echo("animation position x", anim_pos_x);
- echo("animation position y", anim_pos_y);
-
- x_axis_animation_position = anim_pos_x * x_axis_travel_len;
- y_axis_animation_position = anim_pos_y * y_axis_travel_len;
-
- extruder_axis_position = 1.0;
-
- anim_pos_extruder = use_anim ? sin($t * 360) * 0.5 + 0.5 : extruder_axis_position;
- extruder_axis_anim_position = anim_pos_extruder * extruder_travel;
-
- draw_pulleys = false;
-
- left_support_len = 200;
- left_support_off = 50;
- right_support_len = left_support_len;
- right_support_off = left_support_off;
-
- echo("distance between bottom support rails", x_axis_rail_len - left_support_off - right_support_off - 40, -left_support_off, -right_support_off);
-
- bottom_support_len = 500;
- bottom_support_off = 80;
-
- use_double_supports = false;
-
- endstop_pcb_width = 16.0;
- endstop_pcb_height = 40.0;
- endstop_pcb_depth = 1.6;
- endstop_pcb_hole = 3.2;
- endstop_pcb_hole_dist_x = 3.2;
- endstop_pcb_hole_dist_y = 3.2;
- endstop_pcb_hole_dist = 19.0;
- endstop_pcb_switchpoint = 4.5;
- endstop_mount_width = 12;
- endstop_mount_depth = 5;
- endstop_mount_slot_width = 6;
- endstop_mount_slot_depth = 4;
- endstop_mount_slot_length = 8;
- endstop_mount_add_height = 15;
- endstop_mount_nut_hole = 6.5;
- endstop_pcb_mount_off_h = y_carriage_rail_dist + endstop_pcb_switchpoint + 2; // TODO is now -3
- endstop_pcb_mount_off_d = 18; // TODO was 8
- endstop_pcb_mount_off_w = endstop_mount_slot_length;
-
- use_endstop_mount_v2 = false;
-
- foot_screw_dia = 5.3;
- foot_screw_head_dia = 10.0;
- foot_screw_head_height = 7.0;
- foot_nut_base_dia = foot_screw_head_dia;
- foot_dia_add = 10.0;
- foot_dia = max(foot_screw_dia, foot_screw_head_dia) + foot_dia_add;
-
- carriage_spacer_height = 5;
- carriage_spacer_cut = 4;
- carriage_spacer_cut_x = y_carriage_x / 2 - carriage_spacer_cut;
- carriage_spacer_cut_y = y_carriage_y / 2 - carriage_spacer_cut;
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