X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=sewing-table.scad.m4;h=dbd3d21b49e878dbeaf155e2519d4f7bc36a8148;hp=73fc015ff43aacc298a2892b086fb6646709277a;hb=f3c2b2d372ddb9639e71f589ebe8a9345aec7776;hpb=7a04ce94eaa5e9c385ad6da9932a48fb19dff002 diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4 index 73fc015..dbd3d21 100644 --- a/sewing-table.scad.m4 +++ b/sewing-table.scad.m4 @@ -39,6 +39,7 @@ cutout_l_end_x_slop = 0.25; cutout_l_end_x = 22; cutout_l_end_y = machine_rear_to_front; cutout_l_end_curve = 1; +cutout_l_end_new_x_slop = -1.4; cutout_l_end_y_total = cutout_l_end_y + cutout_l_end_y_front_slop + cutout_l_end_y_rear_slop; @@ -51,7 +52,8 @@ cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y; // front and rear curves -rearedge_len = 170; +rearedge_len = 170 + 0.70; +frontedge_len = 170; rearcurve_strt_len = 52; @@ -72,12 +74,13 @@ frontcurve_z_slop = 0.75; frontcurve_strt_len = 50; frontcurve_dualcurve_angle = 30; -teststrapslots_at = [ [ 110, 70 ], +teststrapslots_at = [ [ 110, 70 ], [ 110, -35 ], [ 180, 90 ], - [ 110, -35 ], - [ 190, -80 ], + [ 190, -80 ], // do not change index of this one + [ 0, 70 ], [ 0, -35 ], ]; +teststrap = [ 3, 5 ]; teststrap_peg = [7.5, 3.5]; // calculated @@ -103,7 +106,7 @@ thehd_tl = [ -thehd_tr[0], thehd_tr[1] ]; thehd_bl = -thehd_tr; thehd_br = -thehd_tl; -tablet_z_slop = rearcurve_z_slop; +tablet_z_slop = 0.25; interlock_rad = interlock_dia/2; interlock_negative_rad = interlock_rad + 0.125; @@ -457,6 +460,76 @@ module Machine_NewFrontProfile(){ } } +module Machine_NewEndProfile(){ + // figures copied out of xfig edit boxes + // NB that y coords are reversed - xfig origin is at bottom left + posboxs = 10 * [[4.0400,17.7956], [11.6622,32.5511]]; // box, Pink3 + refline = 10 * ([8.4000,22.6000] - [50.3000,22.2000]); // line, Blue + refline_mm = 10 * (11 - 2.5); + sidelines = 10 * [[[9.0889,20.6178], [8.9644,14.6889]], + [[50.3800,21.9578], [50.1933,14.4933]]]; // lines, Blue3 + baseline = 10 * [[8.4000,18.0822], [50.3000,17.6822]]; // line, Green2 + + rot_adj = -0.38; + + posbox = [min(posboxs[0][0],posboxs[1][0]), + max(posboxs[0][1],posboxs[1][1])]; + + m4_define(`MNEP_ELP', + `line_intersection_2d(baseline[0],baseline[1], + sidelines[$1][0],sidelines[$1][1])') + endline = [MNEP_ELP(0),MNEP_ELP(1)]; + + rot = atan2(-refline[1], -refline[0]); + sc = refline_mm / vectorlen2d(refline); + sh = (0.5 * (endline[0] + endline[1])) - posbox; + + ellen = sc * dist2d(endline[0],endline[1]); + scy = cutout_l_end_y_total / ellen; + + scale([scy,1]) scale(sc) rotate(rot + rot_adj) translate(-[sh[0],-sh[1]]){ + + mirror([0,1]){ + //%translate(1 * (posboxs[0] - posbox)) square(50); + //%translate(1 * (posboxs[1] - posbox)) square(50); +// %translate(1 * (baseline[0] - posbox)) square([50,10]); + +// %translate(1 * (endline[0] - posbox)) square([50,10]); +// %translate(1 * (endline[1] - posbox)) square([50,10]); + +// %translate(1 * (sidelines[0][0] - posbox)) square([10,50]); +// %translate(1 * (sidelines[0][1] - posbox)) square([10,50]); +// %translate(1 * (sidelines[1][0] - posbox)) square([10,50]); +// %translate(1 * (sidelines[1][1] - posbox)) square([10,50]); + } + + import("sewing-table-end-profile.dxf", convexity=10); // spline, Pink3 + } +} + +module Machine_NewEndProfileDemo(){ ////toplevel + translate([0,5,0]) Machine_NewEndProfile(); + translate([0,5,1]) color("blue") mirror([1,0]) Machine_NewEndProfile(); + mirror([0,1,0]){ + translate([0,5, 0]) Machine_NewEndProfile(); + translate([0,5,-1]) color("blue") mirror([1,0]) Machine_NewEndProfile(); + } +} + +module Machine_NewArm(){ + translate([0,0,-30]) linear_extrude(height=60) { + translate(tile01_tr + [ -cutout_l_end_x + cutout_l_end_new_x_slop, + (-cutout_tile01_y + cutout_tile11_y)/2 ]){ + rotate(-90){ + hull(){ + for (d=[0,400]) + translate([0,d]) Machine_NewEndProfile(); + } + } + } + } +} + module Machine_NewRearCurve(){ slant = atan2(4,210-10); //echo("SL",slant); @@ -501,7 +574,7 @@ module Machine_Curves(){ ////toplevel reartablet_y+1, 20 ]); } - translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len, + translate([ tile01_tr[0] - cutout_l_end_x + frontedge_len, cutout_tile11_y, frontcurve_z_slop ]){ translate([0, -machine_rear_to_front, 0]) @@ -512,7 +585,10 @@ module Machine_Curves(){ ////toplevel mirror([1,0,0]) rotate([0,-90,0])rotate([0,0,-90]) linear_extrude(height= 200) Machine_NewFrontProfile(); - + } + translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len, + cutout_tile11_y, + frontcurve_z_slop ]){ translate([ rearcurve_strt_len, 0, rearcurve_z_slop ]){ @@ -523,19 +599,28 @@ module Machine_Curves(){ ////toplevel module TestStrapSlots(){ pegwidth = teststrap_peg[0]; - strap = [ 3, 5 ]; for (pos = teststrapslots_at) { echo("TSS",pos); translate(concat(pos,[0])) for (mx = [0,1]) mirror([mx,0,0]) { - translate([ pegwidth/2, -strap[1]/2, -20 ]) - #cube(concat(strap,[40])); + translate([ pegwidth/2, -teststrap[1]/2, -20 ]) + cube(concat(teststrap,[40])); } } } +module TestStrapPeg_any(l){ cube(concat([l],teststrap_peg)); } + +module TestStrapPeg_Short(){ ////toplevel + TestStrapPeg_any(35); +} + +module TestStrapPeg_Long(){ ////toplevel + TestStrapPeg_any(60); +} + module Machine(){ ////toplevel - Machine_Arm(); + Machine_NewArm(); Machine_Curves(); if (TEST) TestStrapSlots(); @@ -543,9 +628,9 @@ module Machine(){ ////toplevel module MachineEnvelope(){ // used for testing - p_arm_bl = [-cutout_tile11_x, -cutout_tile01_y]; + p_arm_bl = [-cutout_l_end_x, -cutout_tile01_y]; y_arm_t = cutout_tile11_y; - p_crv_fl = p_arm_bl + [rearedge_len, -frontcurve_avoid_y]; + p_crv_fl = p_arm_bl + [frontedge_len, -frontcurve_avoid_y]; y_crv_b = y_arm_t + rearcurve_avoid_y; translate([0,0,-50]) linear_extrude(height= 100){ @@ -612,7 +697,7 @@ module Tile12(){ ////toplevel RoundCornerAdd(rcs); } -tile_01_11_cnr = tile01_tr + [-cutout_tile11_x, 0]; +tile_01_11_cnr = tile01_tr + [-cutout_l_end_x, 0]; tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y]; tile_01_00_cnr = tile01_tr - [0, cutout_tile01_y]; @@ -623,7 +708,7 @@ module Tile11(){ ////toplevel cnr_posts = Rectangle_corners2posts(c); posts = concat( Posts_interpolate_one(cnr_posts[0], - cnr_posts[1] - [cutout_tile11_x, 0]), + cnr_posts[1] - [cutout_l_end_x, 0]), [ cnr_posts[1] + [0, cutout_tile11_y], cnr_posts[2], cnr_posts[3] @@ -649,7 +734,7 @@ module Tile01(){ ////toplevel posts = concat( Posts_interpolate_one(R_EDGE(cnr_posts,0)), [ cnr_posts[2] + [0, -cutout_tile01_y] ], - Posts_interpolate_one(cnr_posts[2] - [cutout_tile11_x, 0], + Posts_interpolate_one(cnr_posts[2] - [cutout_l_end_x, 0], cnr_posts[3]) ); difference(){ @@ -698,7 +783,7 @@ module Tile00(){ ////toplevel c = Rectangle_corners(c0, sz); // the edge c[1]..c[2] needs a diagonal chunk, from c1bis to c2bis - c2bis = [ -cutout_l_end_x + rearedge_len + frontcurve_strt_len, c[2][1] ]; + c2bis = [ -cutout_l_end_x + frontedge_len + frontcurve_strt_len, c[2][1] ]; c1bis = [ c[1][0], c[2][1] - (c[2][0] - c2bis[0]) * tan(90 - frontcurve_dualcurve_angle) ]; @@ -709,7 +794,7 @@ module Tile00(){ ////toplevel posts = [ cnr_posts[0], cnr_posts[1], cnr_posts[2] + [ 0, -rcy ], - cnr_posts[2] + [ -sz[0] + rearedge_len - cutout_l_end_x, -cty ], + cnr_posts[2] + [ -sz[0] + frontedge_len - cutout_l_end_x, -cty ], cnr_posts[3] + [ 0, -cty ] ]; rcs = R_CNR(c,1); @@ -787,7 +872,8 @@ module FitTest_PairLink(cut=false){ ////toplevel translate([0,0,-footrad_depth]) cylinder(r= footrad_min, h=1); } - translate([0,0,-10]) + if (cut) + translate([0,0,-10]) cylinder(r= footrad_min + adj_neg_slop * (footrad_max-footrad_min)/footrad_depth, h=20); @@ -829,21 +915,26 @@ module FitTest_FrontCurve(){ ////toplevel Tile00(); translate([0,0,-8]) linear_extrude(height=18) { translate(p0) square(sz); + translate(teststrapslots_at[3]) + scale(2* [ teststrap_peg[0], teststrap[1] ]) + circle(r=1, $fn=20); } } FitTest_PairLink(true); + TestStrapSlots(); } } module FitTest_Entire(){ ////toplevel - p0 = [-40,-80]; - szrear = [270,180]; - szfront = [250,szrear[1]]; + p0 = [-33,-80]; + szrear = [263,180]; + szfront = [243,szrear[1]]; difference(){ FitTest_general(p0, szrear, dobrace=true, bracexx=0); FitTest_PairLink(true); translate(concat(p0,[0]) + [szfront[0],-10,-40]) cube([100, -p0[1], 80]); + TestStrapSlots(); } intersection(){ FitTest_RearCurve(); @@ -857,6 +948,17 @@ module FitTest_EntireDemo(){ ////toplevel //%Tile00(); } +module FitTest_EndEnd(){ ////toplevel + p0 = [-32,-32]; + sz = [188,113]; + sz2 = [168,100]; + difference(){ + FitTest_general(p0, sz); + translate([ p0[0] -1, p0[1]+sz2[1], -10]) + cube([ sz2[0] +1, 50, 20 ]); + } +} + module FitTest_PairDemo(){ ////toplevel sh=[-90,-15,0]; translate(sh){ @@ -911,6 +1013,8 @@ module Demo(){ ////toplevel //Machine_NewRearProfile(); //Machine_NewRearCurve(); //Machine_NewFrontProfile(); +//Machine_NewEndProfile(); +//Machine_NewEndProfileDemo(); //Machine_Curves(); //Machine(); //FitTest();