| -rw-r--r-- | another.scad | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/another.scad b/another.scad index e4d79f9..915b184 100644 --- a/another.scad +++ b/another.scad @@ -1,66 +1,66 @@ draft=true; layer_height=0.2; extrusion_width=0.4; epsilon=0.01; $fs=0.0125; use <pushfittery.scad>; include <pushfit_data.scad>; include <pulley_data.scad>; module the_extruder( // motor properties gearbox_d = 36, mount_d = 28, // the distance between opposite mounting holes mounthole_depth = 5, mounthole_min_depth = 3, mounthole_max_depth = 4, protrusion_d = 22, protrusion_h = 2.2, // the dimensions of the protrusion on top of gearbox bore_d = 8, bore_l = 17.6, bore_dd = 7, // pulley properties pulley = pulley_e3d, pulley_elevation = 1, // pulley elevation above the protrusion // idler properties idler_d = 10, 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, + knob_v_clearance = 1, // spring tensioner st_nut_d = 9, st_nut_h = 4, st_screw_d = 5, st_thickshell = 8*extrusion_width, st_thinshell = 2*extrusion_width, st_split_w = 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_metal, pf_shell = max(3*layer_height,3*extrusion_width), // empty spaces idler_travel = 3, // how far should idler travel when pressed idler_clearance=.5, pulley_small_d_clearance=.5, 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, st_nut_h_tolerance=.2, st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */ st_screw_d_tolerance=.5, st_split_w_tolerance = .3, min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis. @@ -379,64 +379,65 @@ module the_extruder( text(text=label,size=labelspace.x/label_len,halign="center",valign="center",font="Arial Black"); }//if(body_label) } module springpad() { smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell; bigd = spring_d+spring_d_clearance/2; hf = (bigd-smalld)/2; h = hf*3.5; translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation]) rotate([0,90,0]) difference() { union() { cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd); translate([0,0,hf-epsilon]) cylinder(d=bigd,h=h-hf,$fn=fnd*bigd); translate([0,0,h]) sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); l = body_h-ls_z; w = st_split_w; hull() translate([0,-st_split_w/2,0]) mirror([1,0,0]) { translate([0,0,w]) cube(size=[l,st_split_w,w]); cube(size=[l-w,st_split_w,2*w]); } } translate([0,0,-epsilon]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); } } module knob() { ch = knob_indent_d/2; + knob_bore_l = body_h-protrusion_h-pulley_elevation-pulley_h-knob_v_clearance; translate([0,0,body_h+epsilon]) { mirror([0,0,1]) translate([0,0,-epsilon]) { difference() { cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d); translate([0,0,-1]) difference() { cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2); translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1]) cube([bore_d+2,bore_d/2,knob_bore_l+4]); } } } difference() { union() { cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=fnd*gearbox_d); translate([0,0,ch]) cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=fnd*gearbox_d); translate([0,0,knob_h-ch]) cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=fnd*gearbox_d); } for(a=[0:360/knob_indents:359]) rotate([0,0,a]) translate([0,gearbox_d/2,-1]) cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d); } } }//knob module module debug() { difference() { children(); if(debug) { // spring tensioner debug cutout translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) |