X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamentspool.scad;h=361b2bc0177d52d01d2c6ec5b8012624270880c2;hp=5e52e627cd1926ccf825b7ecc9b3da75905b42e0;hb=62a5cb6fe51e8fa1bdb716152fa60d4511abe3f6;hpb=363defbb545ca091249f04dc41125a37acc6cd03 diff --git a/filamentspool.scad b/filamentspool.scad index 5e52e62..361b2bc 100644 --- a/filamentspool.scad +++ b/filamentspool.scad @@ -1,37 +1,48 @@ // -*- C -*- fdia=2.85; +lightduty=true; slop=0.5; bigslop=slop*2; -function selsz(sm,lg) = fdia < 2 ? sm : lg; -function usedove() = selsz(true,false); +function selsz(sm,lt,lg) = fdia < 2 ? sm : lightduty ? lt : lg; +function usedove() = selsz(true,true,false); + +num_arms = selsz(3,3,4); + +channelslop=selsz(slop,slop,slop); exteffrad = 70; -hubeffrad = selsz(30, 60); -hubbigrad = selsz(20, 50); -hublwidth = selsz(3, 5); +hubeffrad = selsz(30, 82, 40); +hubbigrad = selsz(20, 38, 38); +hublwidth = selsz(3, 2.5, 4); hubstemwidth = 2; hublthick = 10; -hubaxlerad = selsz(5, 17/2); +hubaxlerad = selsz(5, 28/2, 28/2); totalheightfromtower = 240; axletowerfudgebend = 0; axleaxlefudgebend = 3; axlepadlen = 1.0; -prongthick=selsz(5,7); -prongwidth=selsz(5,7); +armend_length = 120; + +prongthick=selsz(5,4,5); +prongwidth=selsz(5,4,5); +prongribwidth=3; +prongribheight=selsz(0,0,4); ratchetstep=15; ratchettooth=3; ratchettoothheight=5; ratchettoothsmoothr=1; ratchettoothslope=0.75; overlap=0.5; -cupwidth=selsz(40,60); -cupheight=selsz(55,75); +cupwidth=selsz(40,25,50); +cupheight=selsz(55,25,55); -propxshift = 0; +cupstrong_dx=selsz(0,0,-10); + +propxshift = -6; doveclipheight = 10; @@ -40,24 +51,25 @@ teethgapx=4+fdia; prongstalkxwidth=3; -stalklength=selsz(35,55); +stalklength=selsz(35,25,55); overclipcupgap=5; overclipdepth=15; overcliproundr=2.0; overclipthick=1.0; -overclipcupnextgap=20; +overclipcupnextgap=selsz(20,15,20); -hubaxlelen = selsz(25, cupwidth); +hubaxlelen = selsz(25, 62.5, 87.5); +echo(hubaxlelen); overclipsmaller=-2.5; overclipbigger=0.0; -wingspoke=3; +wingspoke=2.5; wingsize=6; wingthick=3; -armendwallthick=2.5; -armendbasethick=1.2; +armendwallthick=selsz(2.5, 1.8, 2.5); +armendbasethick=selsz(1.2, 1.2, 1.2); axlehorizoffset = 12.5; axlevertheight = 100; @@ -77,22 +89,29 @@ frictionwasherextrapush = 1.0; ratchetpawl=ratchetstep-ratchettooth-bigslop*2; -nondove_armbase = 100; -nondove_armhole_x = 60; -nondove_armhole_hole = 4; +nondove_armhole_x = 32; +nondove_armhole_hole = 4 + 0.8; +nondove_armhole_support = 7; +nondove_armhole_wall = 3.2; +nondove_armhole_slop = 0.5; +nondove_armhole_slop_x = 0.5; + +nondove_armbase = nondove_armhole_x + nondove_armhole_hole/2 + + nondove_armhole_support; +echo(nondove_armbase); include include include include -channelwidth = prongthick + slop; +channelwidth = prongthick + channelslop; channeldepth = prongwidth + ratchettoothheight; totalwidth = armendwallthick*2 + channelwidth; totalheight = channeldepth + armendbasethick; stalkwidth = prongwidth + prongstalkxwidth; -module ArmEnd(length=120){ ////toplevel +module ArmEnd(length=armend_length){ ////toplevel if (usedove()) { translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) { rotate([0,0,-90]) @@ -155,7 +174,7 @@ module FilamentCupHandle(){ module FilamentCupCup(){ for (my=[0,1]) mirror([0,my,0]) { - translate([0,cupwidth/2,0]) + translate([0, cupwidth/2, 0]) cube([cupheight + prongwidth, prongwidth, prongthick]); } } @@ -165,11 +184,31 @@ module FilamentCup() { ////toplevel gapy = prongwidth; dy = cupwidth/2 + gapy + overclipcupgap; + baselen = dy+cupwidth/2; translate([0, dy, 0]) FilamentCupCup(); - translate([0, -1, 0]); - cube([prongwidth, dy+1+cupwidth/2, prongthick]); + cube([prongwidth, baselen+1, prongthick]); + + translate([cupstrong_dx, prongwidth, 0]) { + cube([prongwidth, baselen-prongwidth, prongthick]); + for (y = [0, .33, .67, 1]) + translate([0, (baselen - prongwidth) * y, 0]) + cube([-cupstrong_dx + 1, prongwidth, prongthick]); + } + if (cupstrong_dx != 0) { + rotate([0,0,45]) + translate([-prongwidth*.55, -prongwidth*2.1, 0]) + cube([prongwidth*(2.65), prongwidth*4.2, prongthick]); + } + + translate([0, -0.2, 0]) + cube([prongribwidth, baselen, prongthick + prongribheight]); + + if (prongribheight > 0) { + translate([-prongwidth, baselen, 0]) + cube([cupheight/2, prongwidth + prongribheight, prongribwidth]); + } midrad = cupwidth/2 + prongwidth/2; @@ -184,12 +223,12 @@ module FilamentCup() { ////toplevel prongthick]); } for (y = [overclipcupgap, overclipcupgap+overclipcupnextgap]) { - translate([0, y, 0]) + translate([cupstrong_dx, y + prongwidth, 0]) rotate([0,0, 102 + fdia]) FilamentTeeth(fdia=fdia, h=teethh); } for (x = [-0.3, -1.3]) { - translate([cupheight + overclipcupnextgap*x, dy+cupwidth/2 + prongthick, 0]) + translate([cupheight + overclipcupnextgap*x, baselen + prongwidth, 0]) rotate([0,0, 12 + fdia]) FilamentTeeth(fdia=fdia, h=teethh); } @@ -241,35 +280,57 @@ module Hub(){ ////toplevel xmax = hubbigrad-hublwidth/2; hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2; holewidth = DoveClipPairSane_width() - hubstemwidth*2; + nondove_allwidth = nondove_armhole_wall*2 + totalwidth; difference(){ union(){ - difference(){ - cylinder($fn=60, h=hublthick, r=hubbigrad); - translate([0,0,-1]) - cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth)); - } - cylinder(h=hubaxlelen, r=axlerad+hublwidth); - for (ang=[0,120,240]) - rotate([0,0,ang]) { - difference() { - translate([hubeffrad,0,0]) - DoveClipPairSane(h=doveclipheight, - baseextend = (hubeffrad - DoveClip_depth() - - hubbigrad + hublwidth)); - if (hole>hublwidth && holewidth > 2) { - translate([hubbigrad + hublwidth, -holewidth/2, -1]) - cube([hole, holewidth, hublthick+2]); - } + difference(){ + cylinder($fn=60, h=hublthick, r=hubbigrad); + translate([0,0,-1]) + cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth)); } + cylinder(h=hubaxlelen, r=axlerad+hublwidth); + for (ang=[0 : 360/num_arms : 359]) + rotate([0,0,ang]) { + if (usedove()){ + difference() { + translate([hubeffrad,0,0]) + DoveClipPairSane(h=doveclipheight, + baseextend = (hubeffrad - DoveClip_depth() + - hubbigrad + hublwidth)); + if (hole>hublwidth && holewidth > 2) { + translate([hubbigrad + hublwidth, -holewidth/2, -1]) + cube([hole, holewidth, hublthick+2]); + } + } + } else { + difference(){ + translate([0, + -nondove_allwidth/2, + 0]) + cube([hubeffrad + nondove_armhole_x + + nondove_armhole_hole/2 + nondove_armhole_support, + nondove_allwidth, + nondove_armhole_wall + totalheight]); + translate([hubeffrad - nondove_armhole_slop_x, + -nondove_allwidth/2 + + nondove_armhole_wall - nondove_armhole_slop, + nondove_armhole_wall]) + cube([nondove_armhole_x + 50, + totalwidth + nondove_armhole_slop*2, + totalheight + 1]); + translate([hubeffrad + nondove_armhole_x, 0, -20]) + cylinder(r= nondove_armhole_hole/2, h=50, $fn=10); + } + } + } + for (ang = [0 : 180/num_arms : 359]) + rotate([0,0,ang]) rotate([90,0,0]) { + translate([0,0,-hublwidth/2]) + linear_extrude(height=hublwidth) + polygon([[xmin,0.05], [xmax,0.05], + [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]); + } } - for (ang = [0 : 60 : 359]) - rotate([0,0,ang]) rotate([90,0,0]) { - translate([0,0,-hublwidth/2]) - linear_extrude(height=hublwidth) - polygon([[xmin,0.05], [xmax,0.05], - [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]); - } -} translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad); } } @@ -390,13 +451,20 @@ module FilamentCupPair(){ ////toplevel rotate([0,0,180]) FilamentCup(); } +module Demo(){ + translate([-hubeffrad-30,50,0]) Hub(); + ArmEnd(); + translate([0,50,0]) FilamentCup(); +} + //ArmEnd(); //FilamentCup(); //FilamentCupPair(); //CupSecuringClip(); -Hub(); +//Hub(); //ArmExtender(); //Axle(); //AxleWasher(); //AxlePin(); //AxleFrictionWasher(); +//Demo();