X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=sidebyside;f=filamentspool.scad;h=4e69f42dbf6effc557838d7be9b7114c3f86962d;hb=04e4c2aa25e11210f6e1ffbf4fb34848d2bf30f1;hp=34e2f823458e60c7341dc1753cd247a55ad2442b;hpb=16416394315d11d9c9afbb9eec64f9423c9717da;p=reprap-play.git diff --git a/filamentspool.scad b/filamentspool.scad index 34e2f82..4e69f42 100644 --- a/filamentspool.scad +++ b/filamentspool.scad @@ -1,34 +1,37 @@ // -*- C -*- -fdia=1.75; +fdia=2.85; slop=0.5; bigslop=slop*2; +function selsz(sm,lg) = fdia < 2 ? sm : lg; +function usedove() = selsz(true,false); + +num_arms = selsz(3,4); + exteffrad = 70; -hubeffrad = 30; -hubbigrad = 20; -hublwidth = 3; +hubeffrad = selsz(30, 50); +hubbigrad = selsz(20, 45); +hublwidth = selsz(3, 5); hubstemwidth = 2; hublthick = 10; -hubaxlelen = 25; -hubaxlerad = 5; +hubaxlerad = selsz(5, 17/2); totalheightfromtower = 240; axletowerfudgebend = 0; axleaxlefudgebend = 3; axlepadlen = 1.0; -prongthick=5; -prongwidth=5; +prongthick=selsz(5,7); +prongwidth=selsz(5,7); ratchetstep=15; ratchettooth=3; ratchettoothheight=5; ratchettoothsmoothr=1; ratchettoothslope=0.75; overlap=0.5; -cupbigrad=20; - -xstraightmul = 1.75; +cupwidth=selsz(40,60); +cupheight=selsz(55,75); propxshift = 0; @@ -39,13 +42,15 @@ teethgapx=4+fdia; prongstalkxwidth=3; -stalklength=35; +stalklength=selsz(35,55); overclipcupgap=5; overclipdepth=15; overcliproundr=2.0; -overclipthick=0.5; +overclipthick=1.0; overclipcupnextgap=20; +hubaxlelen = selsz(25, cupwidth); + overclipsmaller=-2.5; overclipbigger=0.0; @@ -74,6 +79,14 @@ frictionwasherextrapush = 1.0; ratchetpawl=ratchetstep-ratchettooth-bigslop*2; +nondove_armbase = 100; +nondove_armhole_x = 60; +nondove_armhole_hole = 4; +nondove_armhole_support = 7; +nondove_armhole_wall = 4; +nondove_armhole_slop = 0.5; +nondove_armhole_slop_x = 0.5; + include include include @@ -86,9 +99,21 @@ totalheight = channeldepth + armendbasethick; stalkwidth = prongwidth + prongstalkxwidth; module ArmEnd(length=120){ ////toplevel - translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) { - rotate([0,0,-90]) - DoveClipPairBase(h=doveclipheight); + if (usedove()) { + translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) { + rotate([0,0,-90]) + DoveClipPairBase(h=doveclipheight); + } + } else { + difference(){ + translate([1, -armendwallthick, -armendbasethick]) + mirror([1,0,0]) + cube([nondove_armbase+1, totalwidth, totalheight]); + translate([-nondove_armbase + nondove_armhole_x, + -armendwallthick + totalwidth/2, + -armendbasethick -1]) + cylinder(r= nondove_armhole_hole/2, h=totalheight+2, $fn=10); + } } difference(){ @@ -135,38 +160,33 @@ module FilamentCupHandle(){ } module FilamentCupCup(){ - xstraight = cupbigrad * xstraightmul; - linear_extrude(height=prongthick) { - FlatArc(0,0, cupbigrad,cupbigrad+prongwidth, 89,271, $fn=80); - } for (my=[0,1]) mirror([0,my,0]) { - translate([0,cupbigrad,0]) - cube([xstraight, prongwidth, prongthick]); + translate([0,cupwidth/2,0]) + cube([cupheight + prongwidth, prongwidth, prongthick]); } } module FilamentCup() { ////toplevel FilamentCupHandle(); - dx = cupbigrad + prongwidth; gapy = prongwidth; - dy = cupbigrad + gapy + overclipcupgap; + dy = cupwidth/2 + gapy + overclipcupgap; + baselen = dy+cupwidth/2; - translate([dx, dy, 0]) + translate([0, dy, 0]) FilamentCupCup(); - translate([0, -1, 0]); - cube([prongwidth, dy+1, prongthick]); + cube([prongwidth, baselen+1, prongthick]); - midrad = cupbigrad + prongwidth/2; + midrad = cupwidth/2 + prongwidth/2; propshift = stalklength - overclipdepth - prongthick + propxshift; proptaken = propshift; - echo(cupbigrad, dx, midrad, propshift, proptaken); + echo(midrad, propshift, proptaken); translate([propshift, -1, 0]) { // something is wrong with the y calculation cube([prongwidth, - dy - sqrt(midrad*midrad - proptaken*proptaken) - prongwidth/2, + gapy+2, prongthick]); } for (y = [overclipcupgap, overclipcupgap+overclipcupnextgap]) { @@ -174,6 +194,11 @@ module FilamentCup() { ////toplevel rotate([0,0, 102 + fdia]) FilamentTeeth(fdia=fdia, h=teethh); } + for (x = [-0.3, -1.3]) { + translate([cupheight + overclipcupnextgap*x, baselen + prongthick, 0]) + rotate([0,0, 12 + fdia]) + FilamentTeeth(fdia=fdia, h=teethh); + } } module CupSecuringClipSolid(w,d,h1,h2){ @@ -200,6 +225,8 @@ module CupSecuringClip(){ ////toplevel CupSecuringClipSolidSmooth(xrad=overclipthick, xdepth=0); translate([-wingswidth/2, -wingsize/2, 0]) cube([wingswidth, wingsize, wingthick]); + translate([-wingsize/2, -wingswidth/2, 0]) + cube([wingsize, wingswidth, wingthick]); } translate([0,0,-0.1]) CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2); @@ -215,40 +242,64 @@ module TowerDoveClipPin(){ ////toplevel } module Hub(){ ////toplevel - difference(){ - cylinder($fn=60, h=hublthick, r=hubbigrad); - translate([0,0,-1]) - cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth)); - } axlerad = hubaxlerad + slop; - difference(){ - cylinder(h=hubaxlelen, r=axlerad+hublwidth); - translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad); - } + xmin = axlerad+hublwidth/2; + xmax = hubbigrad-hublwidth/2; hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2; holewidth = DoveClipPairSane_width() - hubstemwidth*2; - 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]); - } + 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 : 360/num_arms : 359]) + rotate([0,0,ang]) { + difference() { + if (usedove()){ + 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, $fn=10); + } + } + } + } + for (ang = [0 : 180/num_arms : 359]) + rotate([0,0,ang]) rotate([90,0,0]) { + translate([0,0,-hublwidth/2]) + linear_extrude(height=hublwidth) + polygon([[xmin,0.05], [xmax,0.05], + [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]); + } } - xmin = axlerad+hublwidth/2; - xmax = hubbigrad-hublwidth/2; - for (ang = [0 : 60 : 359]) - rotate([0,0,ang]) rotate([90,0,0]) { - translate([0,0,-hublwidth/2]) - linear_extrude(height=hublwidth) - polygon([[xmin,0.05], [xmax,0.05], - [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]); - } + translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad); + } } module ArmExtender(){ ////toplevel @@ -359,8 +410,17 @@ module TowerExtender(){ ////toplevel pillarw = towerpillarw); } +module FilamentCupPair(){ ////toplevel + FilamentCup(); + translate([cupheight + prongthick*3, + cupwidth/2*1.7, + 0]) + rotate([0,0,180]) FilamentCup(); +} + //ArmEnd(); -//FilamentCup(); +FilamentCup(); +//FilamentCupPair(); //CupSecuringClip(); //Hub(); //ArmExtender();