OpenSCAD files for 3D Printed Wheel Adapter
The V2 version is still just a trial model, while V4 was for actual printing. To view the individual components in the V4 model, just comment out the view_assembly() call and uncomment the adjacent component you want to render.
| base_height=5; | |
| hub_bolt_radius=51.039; | |
| riser_height=15; | |
| riser_outer_radius=25; | |
| riser_inner_radius=20; | |
| bearing_diameter=38; | |
| top_height=5; | |
| top_bolt_radius=35.638; | |
| fillet_radius=25; | |
| outer_leaf_radius=10; | |
| inner_leaf_radius=25; | |
| bolt_diameter=8; | |
| $fn=100; | |
| full_adapter(); | |
| module full_adapter(){ | |
| difference(){ | |
| union(){ | |
| base_plate(); | |
| translate([0, 0, base_height]) riser(); | |
| translate([0,0,base_height+riser_height]) top_plate(); | |
| translate([0,0,base_height]) top_plate_fillet(); | |
| } | |
| cylinder(h=base_height+riser_height+top_height, d=bearing_diameter); | |
| } | |
| } | |
| module base_plate(){ | |
| difference(){ | |
| rotary_leafs(5, base_height, hub_bolt_radius, outer_leaf_radius, inner_leaf_radius, 2); | |
| rotary_holes(5, hub_bolt_radius, bolt_diameter); | |
| } | |
| } | |
| module top_plate(height=top_height){ | |
| difference(){ | |
| rotary_leafs(4, height, top_bolt_radius, outer_leaf_radius, inner_leaf_radius); | |
| rotary_holes(4, top_bolt_radius, bolt_diameter); | |
| } | |
| } | |
| module top_plate_fillet(){ | |
| difference(){ | |
| top_plate(riser_height); | |
| translate([0,0,riser_height-fillet_radius]) rotate_extrude() | |
| translate([top_bolt_radius+outer_leaf_radius,0,0]) | |
| circle(r=fillet_radius); | |
| } | |
| } | |
| module rotary_leafs(n, height, radius, outer_radius, center_radius, step=1){ | |
| for (i = [0:step:n-1]) { | |
| rotate(i*360/n) | |
| hull(){ | |
| translate([0,radius,0]) | |
| cylinder(h=height, r=outer_radius); | |
| cylinder(h=height, r=center_radius); | |
| } | |
| } | |
| } | |
| module rotary_holes(n, radius, hole_diameter){ | |
| for (i = [0:n]) { | |
| rotate(i*360/n) | |
| translate([0,radius,0]) | |
| cylinder(h=100, d=hole_diameter); | |
| } | |
| } | |
| module riser(){ | |
| difference(){ | |
| cylinder(h=riser_height,r=riser_outer_radius); | |
| cylinder(h=riser_height,r=riser_inner_radius); | |
| } | |
| } |
| base_height=5; | |
| hub_bolt_radius=51; | |
| riser_height=15; | |
| riser_outer_radius=30; | |
| bearing_diameter=42; | |
| riser_inner_radius=bearing_diameter/2; | |
| top_height=5; | |
| top_bolt_radius=35.638; | |
| outer_leaf_radius=10; | |
| inner_leaf_radius=30; | |
| bolt_diameter=9; | |
| top_nut_diameter=13; | |
| $fn=100; | |
| view_assembly(); | |
| //flange_portion(); | |
| //wheel_portion(); | |
| //flange_portion_for_print(); | |
| module view_assembly(){ | |
| wheel_portion(); | |
| translate([0,0,10]) flange_portion(); | |
| } | |
| module wheel_portion(){ | |
| difference(){ | |
| union(){ | |
| base_plate(); | |
| translate([0, 0, base_height]) riser(); | |
| } | |
| translate([0,0,base_height]) rotary_holes(4, top_bolt_radius, top_nut_diameter); | |
| translate([0,0,base_height]) mating_sockets(offset=.5); | |
| cylinder(h=base_height+riser_height+top_height, d=bearing_diameter); | |
| } | |
| } | |
| module flange_portion_for_print(){ | |
| rotate([0,180,0]) | |
| translate([0,0,-(base_height+riser_height+top_height)]) | |
| flange_portion(); | |
| } | |
| module flange_portion(){ | |
| difference(){ | |
| union(){ | |
| translate([0,0,base_height+riser_height]) top_plate(); | |
| translate([0,0,base_height]) mating_sockets(); | |
| } | |
| cylinder(h=base_height+riser_height+top_height, d=bearing_diameter); | |
| } | |
| } | |
| module mating_sockets(offset=0){ | |
| step=1; | |
| n=3; | |
| w=riser_outer_radius-riser_inner_radius-4+offset; | |
| socket_radius=(riser_outer_radius+riser_inner_radius)/2; | |
| circ=2*3.14159*socket_radius; | |
| angular_offset=(offset/circ)*360; | |
| for (i = [0:step:n-1]) { | |
| rotate((i*360/n)-(angular_offset/2)) | |
| translate([0,0,riser_height/2]) | |
| partial_rotate_extrude((360/(n*2))+angular_offset, socket_radius, 10) | |
| square([w,riser_height], center=true); | |
| } | |
| } | |
| module pie_slice(radius, angle, step) { | |
| for(theta = [0:step:angle-step]) { | |
| rotate([0,0,0]) linear_extrude(height = radius*2, center=true) | |
| polygon( points = [[0,0],[radius * cos(theta+step) ,radius * sin(theta+step)],[radius*cos(theta),radius*sin(theta)]]); | |
| } | |
| } | |
| module partial_rotate_extrude(angle, radius, convex) { | |
| intersection () { | |
| rotate_extrude(convexity=convex) translate([radius,0,0]) child(0); | |
| pie_slice(radius*2, angle, angle/5); | |
| } | |
| } | |
| module base_plate(){ | |
| difference(){ | |
| rotary_leafs(5, base_height, hub_bolt_radius, outer_leaf_radius, inner_leaf_radius, 2); | |
| rotary_holes(5, hub_bolt_radius, bolt_diameter); | |
| } | |
| } | |
| module top_plate(height=top_height){ | |
| difference(){ | |
| rotary_leafs(4, height, top_bolt_radius, outer_leaf_radius, inner_leaf_radius); | |
| rotary_holes(4, top_bolt_radius, bolt_diameter); | |
| } | |
| } | |
| module rotary_leafs(n, height, radius, outer_radius, center_radius, step=1){ | |
| for (i = [0:step:n-1]) { | |
| rotate(i*360/n) | |
| hull(){ | |
| translate([0,radius,0]) | |
| cylinder(h=height, r=outer_radius); | |
| cylinder(h=height, r=center_radius); | |
| } | |
| } | |
| } | |
| module rotary_holes(n, radius, hole_diameter){ | |
| for (i = [0:n]) { | |
| rotate(i*360/n) | |
| translate([0,radius,0]) | |
| cylinder(h=100, d=hole_diameter); | |
| } | |
| } | |
| module riser(){ | |
| difference(){ | |
| cylinder(h=riser_height,r=riser_outer_radius); | |
| cylinder(h=riser_height,r=riser_inner_radius); | |
| } | |
| } | |