| -rw-r--r-- | another.scad | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/another.scad b/another.scad index 23243d9..4a9fc01 100644 --- a/another.scad +++ b/another.scad @@ -38,24 +38,25 @@ module the_extruder( 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, + pf_guidelen = 3, // the length of ptfe guide before pushfit // empty spaces idler_travel = 3, // how far should idler travel when pressed idler_clearance=1, pulley_d_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, @@ -307,25 +308,38 @@ module the_extruder( h=mount_screw_l-mount_depth+1, $fn=fnd*(mount_screw_d+mount_screw_d_tolerance)); translate([0,0,mount_screw_l-mount_depth]) cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d); }//for // pushfit translate([0,0,filament_elevation]) rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) rotate([-90,0,0]) translate([0,0,mount_d/sqrt(2)/2+mount_screw_d+epsilon]) rotate([0,0,180]) { pushfit(pf); - mirror([0,1,0]) teardrop(d=filament_guide_d,h=gearbox_d,center=true); + mirror([0,0,1]) { + translate([0,0,-epsilon]) + teardrop(d=filament_guide_d,h=pf_guidelen+epsilon,angle=225); + nl = 3.5; /* TODO: */ + translate([0,0,pf_guidelen-1]) + teardrop(d=filament_path_d,h=nl+2,angle=-225); + fh = (filament_guide_d-filament_path_d)/2; + union() { + translate([0,0,pf_guidelen+nl]) + cylinder(d1=filament_path_d,d2=filament_guide_d,h=fh,$fn=fnd*filament_guide_d); + translate([0,0,pf_guidelen+nl+fh-epsilon]) + teardrop(d=filament_guide_d,h=gearbox_d/2,angle=225); + } + } }//rotate translate rotate translate rotate translate // pulley cylinder(d=pulley_d+pulley_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_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=fnd*(idler_d+idler_clearance)); // idler clearance a=cos(45)*(pulley_d+idler_d)/2; b=mount_d/2-a; |