| -rw-r--r-- | another.scad | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/another.scad b/another.scad index 6af68b6..4c4af5c 100644 --- a/another.scad +++ b/another.scad @@ -35,24 +35,25 @@ module the_extruder( st_nut_d = 9, st_nut_h = 4, st_screw_d = 5, st_thickshell = 8*extrusion_width, st_thinshell = 4*extrusion_width, // screw it mount_screw_d = 3.1, mount_screw_l = 20, mount_screwhead_d=6, mount_screwhead_h=3, idler_screw_d = 3, idler_screwhead_d=6, idler_screwhead_h=3, pf = pushfit_embeddest, pf_shell = max(3*layer_height,3*extrusion_width), + pf_smooth = true, // 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=.4, idler_v_tolerance=.5, knob_bore_d_tolerance=.6, @@ -239,38 +240,50 @@ module the_extruder( translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon]) cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); } } } } // translate // pushfit bracket translate([0,0,filament_elevation]) rotate([0,0,45]) translate([pulley_d/2,0,0]) rotate([-90,0,0]) translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/]) { - pfb2a = pf_d(pf)+2*pf_shell; pfba = pfb2a/2; - pfbd = pfb2a/cos(30); - pfbs = pfb2a*tan(30); - pfbl = pf_h(pf)+gearbox_d/2/*TODO:*/; - cylinder(d=pfbd,h=pfbl,$fn=6); - translate([-pfbs/2,0,0]) { + pfbl = pf_h(pf)+gearbox_d/2; //TODO: + if(pf_smooth) { + pfbd = pf_d(pf)+2*pf_shell; hull() { - translate([0,-pfba,0]) cube(size=[pfbs,pfb2a,pfbl]); - cube(size=[pfbs,filament_elevation,pfbl-filament_elevation+pfba]); - mirror([0,1,0]) - cube(size=[pfbs,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfba]); - } - } - } + cylinder(d=pfbd,h=pfbl,$fn=pfbd*fnd); + translate([-epsilon/2,0,0]) { + cube(size=[epsilon,filament_elevation,pfbl-filament_elevation+pfbd/2]); + mirror([0,1,0]) + cube(size=[epsilon,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfbd/2]); + }//translate + }//hull + }else{ + pfb2a = pf_d(pf)+2*pf_shell; pfba = pfb2a/2; + pfbd = pfb2a/cos(30); + pfbs = pfb2a*tan(30); + cylinder(d=pfbd,h=pfbl,$fn=6); + translate([-pfbs/2,0,0]) { + hull() { + translate([0,-pfba,0]) cube(size=[pfbs,pfb2a,pfbl]); + cube(size=[pfbs,filament_elevation,pfbl-filament_elevation+pfba]); + mirror([0,1,0]) + cube(size=[pfbs,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfba]); + }//hull + }//translate*/ + }//if(pf_smooth) + }//translate rotate translate rotate translate }//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=fnd*(protrusion_d+protrusion_tolerance_h)); // 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-(bridges?layer_height:-epsilon)]) mirror([0,0,1]) cylinder(d=mount_screw_d+mount_screw_d_tolerance, h=mount_screw_l-mounthole_depth/2+1, $fn=fnd*(mount_screw_d+mount_screw_d_tolerance)); |