X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamentspool.scad;h=376c8c6c2f01b04511f81a317d565248d84f5c98;hp=459a8b14b4cbaee35541d3de6d5b2095f810954a;hb=48c07842b36e40408e661792c77ce63ae92a9ffd;hpb=0be9b45b7746976e7148335fd5cb315e632ca5c0 diff --git a/filamentspool.scad b/filamentspool.scad index 459a8b1..376c8c6 100644 --- a/filamentspool.scad +++ b/filamentspool.scad @@ -1,38 +1,48 @@ // -*- C -*- fdia=2.85; +lightduty=false; slop=0.5; bigslop=slop*2; +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,0.75,slop); + exteffrad = 70; -hubeffrad = 30; -hubbigrad = 20; -hublwidth = 3; +hubeffrad = selsz(30, 82, 40); +hubbigrad = selsz(20, 38, 38); +hublwidth = selsz(3, 2.5, 4); hubstemwidth = 2; hublthick = 10; -hubaxlelen = 25; -hubaxlerad = 5; +hubaxlerad = selsz(5, 28/2, 28/2); totalheightfromtower = 240; axletowerfudgebend = 0; axleaxlefudgebend = 3; axlepadlen = 1.0; -function selsz(sm,lg) = fdia < 2 ? sm : lg; -function usedove() = selsz(true,false); +armend_length = 120; -prongthick=selsz(5,7); -prongwidth=selsz(5,7); +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; @@ -41,22 +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, 62.5, 77.5); +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; @@ -76,22 +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]) @@ -154,7 +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]); } } @@ -164,11 +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; @@ -183,12 +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); } @@ -235,40 +275,64 @@ 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]) { + 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, $fn=10); + } + } + } + for (ang = [0 : 180/num_arms : 359]) + rotate([0,0,ang]) rotate([90,0,0]) { + translate([0,0,-hublwidth/2]) + linear_extrude(height=hublwidth) + polygon([[xmin,0.05], [xmax,0.05], + [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]); + } } - xmin = axlerad+hublwidth/2; - xmax = hubbigrad-hublwidth/2; - for (ang = [0 : 60 : 359]) - rotate([0,0,ang]) rotate([90,0,0]) { - translate([0,0,-hublwidth/2]) - linear_extrude(height=hublwidth) - polygon([[xmin,0.05], [xmax,0.05], - [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]); - } + translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad); + } } module ArmExtender(){ ////toplevel @@ -387,13 +451,154 @@ module FilamentCupPair(){ ////toplevel rotate([0,0,180]) FilamentCup(); } +//----- storarm ----- + +storarm_hooklen = 8; +storarm_hookheight = 5; +storarm_thick = 10; +storarm_axleslop = 4; + +storarm_base_w = 30; +storarm_base_h = 100; +storarm_base_d = 15; +storarm_base_mind = 2; + +storarm_cope_hubaxle_mk1 = true; + +storarm_screw_hole = 4; +storarm_screw_hole_slop = 0.5; +storarm_besides_hole = 4; + +storarm_under_hole = 5; +storarm_screw_hole_head = 8.8; +storarm_screw_hole_head_slop = 1.5; + +// calculated + +storarm_axlerad = hubaxlerad - storarm_axleslop; +storarm_mainlen = hubaxlelen*2 + storarm_axleslop + + (storarm_cope_hubaxle_mk1 ? 10 : 0); +storarm_totlen = storarm_mainlen + storarm_hooklen; + +storarm_mid_off_y = storarm_axlerad; + +storarm_base_off_y = storarm_mid_off_y + storarm_base_h/2; + +module StorageArmDiagPartSide(xmin, xmax){ + xsz = xmax-xmin; + yuse = storarm_thick/2; + + intersection(){ + translate([xmin-1, -storarm_axlerad, storarm_thick/2]) + rotate([0,90,0]) + cylinder(r=storarm_axlerad, h=xsz+2, $fn=60); + translate([xmin, -yuse, 0]) + cube([xsz, yuse, storarm_thick]); + } +} + +module StorageArmDiagPart(xmin, xmax, shear, adjbot){ + hull(){ + StorageArmDiagPartSide(xmin,xmax); + + multmatrix([[1,0,0,0], + [shear,1,0,0], + [0,0,1,0], + [0,0,0,1]]) + translate([0, -storarm_axlerad*2 + adjbot, 0]) + mirror([0,1,0]) + StorageArmDiagPartSide(xmin,xmax); + } +} + +module StorageArmBaseTemplate(){ + square([storarm_base_w, storarm_base_h]); +} + +module StorageArmAtMountingHoles(){ + bes = storarm_besides_hole + storarm_screw_hole; + + x0 = bes; + x1 = storarm_base_w-bes; + y1 = storarm_base_h - bes; + y0 = bes; + + for (pos=[ [x0, y1], + [x1, y1], + [x1, y0] ]) { + rotate([0,90,0]) + translate([pos[0] - storarm_base_w, + pos[1] - storarm_base_off_y, -storarm_base_d]) + children(); + } +} + +module StorageArmRight(){ ////toplevel + shear = storarm_hookheight / (storarm_mainlen/2); + + StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0); + StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2, + storarm_hookheight/2); + + translate([0, storarm_hookheight, 0]) + StorageArmDiagPart(storarm_mainlen, storarm_totlen, + shear/2, -storarm_hookheight/2); + + difference(){ + union(){ + hull(){ + translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w]) + rotate([0,90,0]) + linear_extrude(height=storarm_base_mind) + StorageArmBaseTemplate(); + StorageArmDiagPart(-1, 0, shear, 0); + } + StorageArmAtMountingHoles(){ + cylinder(r= storarm_screw_hole_head/2, + h=10); + } + } + StorageArmAtMountingHoles(){ + translate([0,0,-1]) + cylinder(r= (storarm_screw_hole + storarm_screw_hole_slop)/2 , + h=20); + translate([0,0,storarm_under_hole]) + cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2, + h=20); + } + } +} + +module StorageArmLeft(){ ////toplevel + mirror([1,0,0]) StorageArmRight(); +} + +module StorArmHoleTest(){ ////toplevel + sz = storarm_screw_hole_head + storarm_besides_hole*2; + intersection(){ + StorageArmRight(); + translate([-50, -storarm_base_off_y, -1]) + cube([100, sz, sz+1]); + } +} + + +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(); +//StorageArmLeft(); +//StorArmHoleTest(); +//Demo();