X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamentspool.scad;h=44a3f31da19088b2ba9bf39c3ecedf2a18313689;hp=15a58282a434a3e80afb9bf7a35fea5e7041e2fe;hb=696d92a3055f076414a42331f649d17378aef613;hpb=30f9e456cd96bd643270e26c54cebef9364130c0 diff --git a/filamentspool.scad b/filamentspool.scad index 15a5828..44a3f31 100644 --- a/filamentspool.scad +++ b/filamentspool.scad @@ -1,39 +1,48 @@ // -*- C -*- fdia=2.85; +lightduty=false; 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(3,4); +num_arms = selsz(3,3,4); + +channelslop=selsz(slop,0.75,slop); exteffrad = 70; -hubeffrad = selsz(30, 50); -hubbigrad = selsz(20, 45); -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; @@ -42,24 +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, 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; @@ -79,26 +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 = 4; +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]) @@ -161,7 +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]); } } @@ -177,6 +190,26 @@ module FilamentCup() { ////toplevel FilamentCupCup(); 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; propshift = stalklength - overclipdepth - prongthick + propxshift; @@ -190,12 +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, baselen + prongthick, 0]) + translate([cupheight + overclipcupnextgap*x, baselen + prongwidth, 0]) rotate([0,0, 12 + fdia]) FilamentTeeth(fdia=fdia, h=teethh); } @@ -258,8 +291,8 @@ module Hub(){ ////toplevel cylinder(h=hubaxlelen, r=axlerad+hublwidth); for (ang=[0 : 360/num_arms : 359]) rotate([0,0,ang]) { - difference() { - if (usedove()){ + if (usedove()){ + difference() { translate([hubeffrad,0,0]) DoveClipPairSane(h=doveclipheight, baseextend = (hubeffrad - DoveClip_depth() @@ -268,25 +301,25 @@ module Hub(){ ////toplevel 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); - } + } + } 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); } } } @@ -418,13 +451,74 @@ module FilamentCupPair(){ ////toplevel rotate([0,0,180]) FilamentCup(); } +//----- storarm ----- + +storarm_hooklen = 8; +storarm_hookheight = 5; +storarm_thick = 10; +storarm_axleslop = 4; + +// calculated + +storarm_axlerad = hubaxlerad - storarm_axleslop; +storarm_mainlen = hubaxlelen; +storarm_totlen = storarm_mainlen + storarm_hooklen; + +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 StorageArm(){ ////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); +} + + +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(); +StorageArm(); +//Demo();