openscad/Mendel90
1
0
Fork 0
mirror of https://github.com/nophead/Mendel90.git synced 2025-09-02 09:32:46 +02:00
Code Issues Releases Wiki Activity

first commit

Browse Source
This commit is contained in:
Chris Palmer
2012-03-12 01:13:07 +00:00
commit d22174869f
68 changed files with 90115 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

355
scad/wade.scad Normal file
View File

@@ -0,0 +1,355 @@
//
// Mendel90
//
// Originally based on Josef Prusa's version but much hacked
//
// GNU GPL v2
// nop.head@gmail.com
// hydraraptor.blogspot.com
//
include <conf/config.scad>
use <d-motor_bracket.scad>
Stoffle15_10mm = [10, 13, 5, false];
Stoffle15_16mm = [16.5, 10, 6, false];
Mendel90_12mm = [12, 10, 6 + 3/2 - 1, false];
function insulator_diameter(type) = type[0];
function insulator_depth(type) = type[1];
function insulator_screw_pitch(type) = type[2];
function insulator_clamped(type) = type[3];
hot_end = Mendel90_12mm;
clamp_width = 2 * (insulator_screw_pitch(hot_end) + screw_clearance_radius(M3_cap_screw) + min_wall);
module b608(h=7){
difference(){
union(){
translate([0,0,3.5])
cylinder(r=11.01,h=h,center=true);
*translate([0,0,3.5])
cylinder(r=6,h=7,center=true);
}
//translate([0,0,3.5]) cylinder(r=4,h=8,center=true);
}
}
screw_depth = 5;
motor_y = 31.5;
motor_min = 26 + 5;
motor_max = 36;
motor_x = (motor_min + motor_max) / 2;
motor_leeway = motor_max - motor_min;
thickness = 5;
base_thickness = 6;
filament_x = 75;
filament_z = 15;
width = 28;
mount_pitch = 25;
pscrew_x = 60;
pscrew_y = [17.5, 45.5];
pscrew_z = [8.5, 21.5];
driven_x = 70;
driven_y = 31.5;
function extruder_connector_offset() = [-filament_x + motor_x, filament_z - thickness, motor_y] + d_motor_connector_offset(NEMA17);
module wades_block_stl() {
stl("wades_block");
insulator = insulator_diameter(hot_end);
screw_pitch = insulator_screw_pitch(hot_end);
insulator_depth = insulator_depth(hot_end);
difference(){
union(){
cube([81, 52, thickness]); // motor plate
cube([filament_x + 25 - 3.5, base_thickness, 28]); // base
translate([filament_x + 25 - 3.5, base_thickness / 2, filament_z])
for(a = [-90, 90])
rotate([a, 0, 0])
teardrop(r = 10.6, h = base_thickness, truncate = false, center = true);
translate([57, 0, 0])
cube([26, 52, width]); // bearing housing
translate([80,1,0]) // fillet
cube([11,11, width]);
}
translate([91,base_thickness,-1])
rotate([0,0,45])
cube([9,9,30]); // chamfer on fillet
translate([-11,-1,30]) rotate([0,60,0]) cube([30, base_thickness + 2, 60]); // base chamfers
translate([80, -1, width + eta]) cube([40, base_thickness + 2, 10]);
translate([filament_x, 20, filament_z])
rotate([90,0,0])
teardrop(h = 70, r=4/2, center=true); // filament
// mounting holes
for(side = [-1, 1])
translate([filament_x + mount_pitch * side, base_thickness, filament_z])
rotate([90,0,0])
nut_trap(M4_clearance_radius, M4_nut_radius, 3, true);
for(y = pscrew_y)
for(z = pscrew_z) {
translate([70, y, z]) rotate([90,0,90])teardrop(h=40,r=4.5/2, center=true); // pressure screws
translate([pscrew_x - 5, y, z]) rotate([90,0,90])cylinder(h=10,r=M4_nut_radius, $fn=6, center=true); // nut traps
}
//
// holes for motor
//
translate([motor_x, motor_y, -1]) {
slot(r = NEMA_big_hole(NEMA17), l = motor_leeway, h = 10, center = false); // motor hub slot
for(x = NEMA_holes(NEMA17)) // motor screw slots
for(y = NEMA_holes(NEMA17))
translate([x,y,0])
slot(r = M3_clearance_radius, l = motor_leeway, h = 10, center = false);
}
//
// remove fourth motor slot
//
translate([motor_x - 40 + motor_leeway / 2, motor_y - NEMA_big_hole(NEMA17), -1])
cube([40,32,7]);
translate([motor_x - 40 + motor_leeway / 2 + 6, motor_y, -1])
cube([40,32,7]);
translate([-5,-1,-1]) cube([16,60,30]); // truncates tail
translate([driven_x, driven_y, 7.5]) poly_cylinder(r = M8_clearance_radius + 0.25,h=30); // hole for hobbed bolt
translate([driven_x, driven_y, 21.01]) b608(); // top bearing socket
translate([83, driven_y, 11.5]) b608(8); // clearance for idler
translate([driven_x, driven_y, -0.01]) b608(); // bottom bearing socket
//
// Hole for hot end
//
translate([filament_x, -15 + insulator_depth, filament_z])
rotate([90,0,0]) {
teardrop(h = 30, r = insulator / 2, center=true); // insulator
translate([0,0, -14.5])
teardrop(h = 1 , r = insulator / 2 + 1, center=true); // relief to avoid radius so end is flat
}
if(insulator_clamped(hot_end))
translate([filament_x - clamp_width / 2, -eta, filament_z])
cube([clamp_width, insulator_depth, 100]);
for(side = [-1, 1])
translate([filament_x + screw_pitch * side, screw_depth, -1])
cylinder(h = 30, r = (3.3 / 2), $fn = 9); // retaining screws
}
}
module wades_gear_spacer_stl() {
stl("wades_gear_spacer");
washer = M8_washer;
h = 5 * washer_thickness(washer);
difference() {
cylinder(r = washer_diameter(washer) / 2, h = h, center = false);
translate([0,0, -0.5])
poly_cylinder(r = M8_clearance_radius, h = h + 1, center = false);
}
}
bfbext=false;
*difference() {
wadeblock(bfbext);
*translate([-1,-1, filament_z])
cube([200,100,100]);
}
function extruder_connector_height() = motor_y - d_motor_bracket_offset(NEMA17);
module wades_big_gear_stl() {
stl("wades_big_gear");
color([0,1,0]) import("../imported_stls/39t17p.stl");
}
module wades_small_gear_stl() {
stl("wades_small_gear");
color([1,0,0])
translate([-10, -10, 0])
import("../imported_stls/wades_gear.stl");
}
module small_gear_assembly() {
wades_small_gear_stl();
rotate([90, 0, -24]) {
translate([0, 4, -5/2 - 6])
screw(M3_grub_screw, 6);
translate([0, 4, -6])
rotate([0,0,30])
nut(M3_nut);
}
}
idler_height = 12;
module wades_idler_block_stl() {
stl("wades_idler_block");
long_side = 37;
short_side = 25;
corners_diameter = 3;
608_dia = 12;
608_height = 9;
mounting_dia = 4.5;
difference(){
// Main block
rounded_rectangle([long_side, short_side, idler_height], corners_diameter, center = false);
// bearing cutout
translate([0, 0, idler_height - 2]){
rotate([90,0,0])
cylinder(h = 608_height, r=608_dia, center=true);
rotate(a=[90,0,0])
cylinder(h = short_side-2, r=8.6/2, center=true);
}
//mounting holes
for(x = pscrew_y)
for(y = pscrew_z)
translate([x - motor_y, y - filament_z, 0])
poly_cylinder(h = idler_height * 2.1, r = mounting_dia / 2, center=true);
}
}
module wade_idler_assembly() {
color([0,1,0]) render() wades_idler_block_stl();
translate([0, 0, idler_height - 2])
rotate([90, 0, 0]) {
rod(d = 8, l = 22);
ball_bearing(BB608);
}
}
module wades_assembly() {
assembly("wades_assembly");
render() wades_block_stl();
// idler screws, washers and springs
for(i = [0,1])
translate([pscrew_x, pscrew_y[i], pscrew_z[i]])
rotate([-90,0,90]) {
screw(M4_hex_screw, 50);
translate([0,0, -38]) {
translate([0,0, -6]) {
comp_spring(extruder_spring, 6);
translate([0,0, -washer_thickness(M4_washer)]) {
washer(M4_washer);
translate([0,0, -nut_thickness(M4_nut)])
nut(M4_nut);
}
}
}
}
// mounting screws
for(side = [-1, 1])
translate([filament_x + mount_pitch * side, base_thickness - 3, filament_z])
rotate([-90,0,0])
screw(M4_hex_screw, 20);
//idler
translate([98, motor_y, filament_z])
rotate([90, 0, -90])
wade_idler_assembly();
// motor and gear
translate([motor_x, motor_y, thickness + eta])
rotate([0,180,0]) {
NEMA(NEMA17);
translate([0,0, 3.5])
small_gear_assembly();
translate([0, 0, thickness])
rotate([0, 0, 90])
NEMA_screws(NEMA17, 3);
assembly("D_connector_assembly");
d_motor_bracket_assembly(NEMA17);
d_shell_assembly(NEMA17);
end("D_connector_assembly");
}
// hobbed bolt and gear
translate([driven_x, motor_y, 0]) {
translate([0, 0, width - BB608[2] / 2])
ball_bearing(BB608);
translate([0, 0, BB608[2] / 2])
ball_bearing(BB608);
rotate([180, 0, 0])
color([1,0,0]) render() wades_gear_spacer_stl();
translate([0, 0, -7.5])
rotate([180, 0, 0])
wades_big_gear_stl();
translate([0,0, -14])
rotate([180, 0, 0])
screw(M8_hex_screw, 60);
translate([0,0, width])
washer(M8_washer);
translate([0,0, width + washer_thickness(M8_washer)]) {
comp_spring(hob_spring, 8);
translate([0, 0, 8])
nut(M8_nut);
}
}
translate([75, 5 - nozzle_length / 4, 15])
rotate([-90, 0, 0]) {
color([0.6, 0.5, 0.2]) cylinder(h = nozzle_length / 2 + 10, r = insulator_diameter(hot_end) / 2, center = true);
translate([0, 0, -nozzle_length /2 - 5])
color([1, 1, 0]) cylinder(h = nozzle_length / 2, r = 3, center = true);
}
for(side = [-1, 1])
translate([filament_x + insulator_screw_pitch(hot_end) * side, screw_depth, width])
screw(M3_cap_screw, 30);
end("wades_assembly");
}
if(1)
rotate([90, 0, 0])
wades_assembly();
else {
wades_block_stl();
*wades_idler_block_stl();
*wades_gear_spacer_stl();
}