author | Michael Krelin <hacker@klever.net> | 2018-08-01 15:16:53 (UTC) |
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committer | Michael Krelin <hacker@klever.net> | 2018-08-01 15:16:53 (UTC) |
commit | 074c2516b4ffa100d35e45a58e41c1e8d13a76b7 (patch) (side-by-side diff) | |
tree | 0b26b19db8d665fbe623e64b5e8437857cd9d91c | |
parent | 0709ab26b17a92de950024f82a0295c06ab8fe3d (diff) | |
download | extrudery-074c2516b4ffa100d35e45a58e41c1e8d13a76b7.zip extrudery-074c2516b4ffa100d35e45a58e41c1e8d13a76b7.tar.gz extrudery-074c2516b4ffa100d35e45a58e41c1e8d13a76b7.tar.bz2 |
another: parametrize pushfit type
-rw-r--r-- | another.scad | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/another.scad b/another.scad index b7b6e3a..7c4bf37 100644 --- a/another.scad +++ b/another.scad @@ -15,48 +15,50 @@ module the_extruder( bore_d = 8, bore_l = 17.6, bore_dd = 7, // pulley properties pulley_d = 11.5, pulley_h=10, pulley_elevation = 1, // pulley elevation above the protrusion teeth_elevation = 7.5, // distance from the bottom of the pulley to its teeth // idler properties idler_d = 9.5, idler_h = 4, idler_id = 3, // idler dimensions: outer and inner diameters and height // spring properties spring_d = 10, spring_lc = 9.6, // spring diameter and compressed length // filament path properties filament_d = 1.75, filament_path_d = 2, filament_guide_d = 4, // PTFE filament guide diameter // knob properties knob_h = 10, knob_bore_l = 4, knob_indent_d = 4, knob_indents = 12, // screw it mount_screw_d = 3, mount_screw_l = 20, mount_screwhead_d=6, mount_screwhead_h=3, + pf = pushfit_embeddest, + // empty spaces idler_travel = 3, // how far should idler travel when pressed idler_clearance=1, pulley_clearance=2, lever_v_clearance=.7, // vertical clearance for the lever spring_d_clearance=1, protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion mount_screw_d_tolerance=.5, idler_v_tolerance=.5, knob_bore_d_tolerance=.6, what="lever", left=false, vitamins = true ) { lever_shell = mount_screwhead_h+0.5; lever_thickness=max(spring_d+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); lsd = idler_d-idler_clearance*2; longwing=gearbox_d/2+spring_d/2+lsd/2; h_ = (pulley_d+idler_d)/(2*sqrt(2)); ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) ); spring_dl = idler_travel*longwing/ri; @@ -86,49 +88,49 @@ module the_extruder( % if(vitamins) mirrorleft() { translate([0,0,-epsilon]) mirror([0,0,1]) cylinder(d=gearbox_d,h=1,$fn=60); for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) cylinder(d=mount_screw_d,h=20,$fn=30); translate([0,0,-epsilon]) cylinder(d=protrusion_d,h=protrusion_h,$fn=30); translate([0,0,protrusion_h]) { difference() { cylinder(d=bore_d,h=bore_l,$fn=30); translate([-bore_d/2-1,bore_dd-bore_d/2,-1]) cube([bore_d+2,bore_d/2,bore_l+2]); } translate([0,0,pulley_elevation]) { cylinder(d=pulley_d,h=pulley_h,$fn=30); translate([0,0,teeth_elevation]) { place_idler() { cylinder(d=idler_d,h=idler_h,center=true,$fn=30); cylinder(d=idler_id,h=lever_thickness+2,center=true,$fn=30); }//place idler // filament path rotate([0,0,45]) translate([(pulley_d-filament_path_d)/2,0,0]) { rotate([90,0,0]) cylinder(d=filament_d,h=gearbox_d*2,center=true,$fn=15); rotate([-90,0,0]) translate([0,0,mount_d/sqrt(2)/2+mount_screw_d]) - pushfit(pushfit_threaded); + pushfit(pf); } }//translate teeth }//translate pulley }//translate protrusion }//vitamins module lever() { translate([0,0,protrusion_h+pulley_elevation+teeth_elevation]) { difference() { union() { hull() { place_idler() cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); translate([mount_d/2,0,0]) cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); }//hull hull() { translate([mount_d/2,0,0]) cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); translate([mount_d/2,-longwing,0]) rotate([0,90,0]) cylinder(d=lever_thickness,h=lsd,center=true,$fn=60); }//hull }//union @@ -183,70 +185,70 @@ module the_extruder( fsw = gearbox_d/2+mount_screwhead_d/2; translate([-gearbox_d/2,0,0]) difference() { union() { hull() { translate([0,-longwing,ls_z]) rotate([0,90,0]) cylinder(d=lever_thickness,h=fsw,$fn=2*PI*lever_thickness); hh=body_h-ls_z; translate([0,0,ls_z-lever_thickness/2]) mirror([0,1,0]) cube(size=[fsw,longwing-hh+lever_thickness/sqrt(2),hh+lever_thickness/2]); hhh=ls_z; translate([0,0,0]) mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]); } } translate([0,-longwing,ls_z]) rotate([0,-90,0]) finger_indent(d=lever_thickness-1,r=15); } // translate // pushfit bracket translate([0,0,filament_elevation]) rotate([0,0,45]) translate([pulley_d/2,0,0]) rotate([-90,0,0]) translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/]) - cylinder(r=min(body_h-filament_elevation,filament_elevation)/sin(60)-epsilon,h=10+gearbox_d/2/*TODO:*/,$fn=6); + cylinder(r=min(body_h-filament_elevation,filament_elevation)/sin(60)-epsilon,h=pf_h(pf)+gearbox_d/2/*TODO:*/,$fn=6); }//union (first child of difference) // protrusion translate([0,0,-1]) cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=2*PI*protrusion_d); // mount screw holes for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) { translate([0,0,mount_screw_l-mounthole_depth/2-layer_height-1]) mirror([0,0,1]) cylinder(d=mount_screw_d+mount_screw_d_tolerance, h=mount_screw_l-mounthole_depth/2-layer_height+1, $fn=2*PI*mount_screw_d); translate([0,0,mount_screw_l-mounthole_depth/2]) cylinder(d=mount_screwhead_d,h=body_h+1,$fn=2*PI*mount_screwhead_d); }//for // pushfit threads translate([0,0,filament_elevation]) rotate([0,0,45]) translate([pulley_d/2,0,0]) rotate([-90,0,0]) translate([0,0,mount_d/sqrt(2)/2+mount_screw_d+epsilon]) rotate([0,0,180]) { - pushfit(pushfit_threaded); + pushfit(pf); cylinder(d=filament_guide_d,h=gearbox_d,center=true,$fn=2*PI*filament_guide_d); translate([0,-filament_guide_d/2/sqrt(2),0]) rotate([0,0,45]) cube(size=[filament_guide_d/2,filament_guide_d/2,gearbox_d],center=true); } // pulley cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=2*PI*(pulley_d+pulley_clearance)); // leverspace hull() for(x=[0,gearbox_d]) rotate([0,0,45]) translate([x,0,ls_z-ls_h/2]) cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=2*PI*idler_d); a=cos(45)*(pulley_d+idler_d)/2; b=mount_d/2-a; x=sqrt(pow(a,2)+pow(b,2)); translate([mount_d/2,0,ls_z]) intersection() { r = x+idler_d/2+1;/* TODO: */ cylinder(r=r,h=ls_h,center=true); translate([-r-1,0,-1]) cube(size=[2*r+2,r+1,ls_h+2]); } rotate([0,0,-45]) |