X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=sewing-table.scad.m4;h=4af88b176a06707f607cc29566f12109a225dd31;hb=60842d6ca0ff8c2b1a833a8848f7c1bdc136d23d;hp=9c0b499a6e50a0318f3823f623900ed9e1af6238;hpb=8820478f776ed9e7dab0cef1175bb16189dc2d2a;p=reprap-play.git diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4 index 9c0b499..4af88b1 100644 --- a/sewing-table.scad.m4 +++ b/sewing-table.scad.m4 @@ -30,17 +30,51 @@ demo_slop = 0.1; // cutout +machine_rear_to_front = 85; + +machine_rear_profile = [ + [ - 0, -0.00 ], + [ - 2, -0.10 ], + [ - 4, -0.20 ], + [ - 5, -0.30 ], + [ - 6, -0.40 ], + [ - 7, -0.50 ], + [ - 8, -0.75 ], + [ - 10, -1.50 ], + [ - 12, -2.25 ], + [ - 14, -3.25 ], + [ - 16, -4.25 ], + [ - 18, -5.75 ], + [ - 20, -8.00 ] + ]; + +machine_front_profile = [ + [ 128, -3.70, ], + [ 124, -2.90, ], + [ 120, -2.45, ], + [ 116, -2.10, ], + [ 112, -1.80, ], + [ 108, -1.55, ], + [ 104, -1.25, ], + [ 100, -1.00, ], + [ 96, -0.80, ], + [ 92, -0.65, ], + [ 88, -0.55, ], + [ 84, -0.50, ] + ]; + cutout_l_end_y_front_slop = 0.5; cutout_l_end_y_rear_slop = 0.5; cutout_l_end_x_slop = 0.25; cutout_l_end_x = 22; -cutout_l_end_y = 85; +cutout_l_end_y = machine_rear_to_front; cutout_l_end_curve = 1; cutout_l_end_y_total = cutout_l_end_y + cutout_l_end_y_front_slop + cutout_l_end_y_rear_slop; -tile01_tr = [250, 0]; +tile02_tr = [-250, 0]; +tile01_tr = [ 0, 0]; cutout_tile01_y = 170 - 147 + cutout_l_end_y_front_slop; cutout_tile11_x = cutout_l_end_x + cutout_l_end_curve; @@ -50,13 +84,13 @@ cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y; rearedge_len = 170; -rearcurve_rad = 25.4; rearcurve_strt_len = 65; -rearcurve_total_len = 84; -rearcurve_rad_slop = 0.75; +rearcurve_z_slop = 0.75; + +rearcurve_avoid_y = 35; -rearcurve_avoid_y = rearcurve_rad + 10; +rearcurve_double_inrad = 26.10 + 8.04; reartablet_z = 2.54; reartablet_x = 5 + 1; @@ -351,10 +385,40 @@ module Machine_Arm(){ } } +module Machine_Profile(){ + first_rear = machine_rear_profile[0]; + first_front = machine_front_profile[len(machine_front_profile)-1]; + below_point = 0.5 * ( first_rear + first_front ) + [ 0, -10 ]; + pol = concat( machine_rear_profile, + [ below_point ], + machine_front_profile); + skew_angle = atan2( first_front[1] - first_rear[1], + first_front[0] - first_rear[0] ); + echo(below_point, pol, skew_angle); + hull(){ + for (z=[0,-40]) { + translate([0,z]) { + //scale([1,5]) + rotate([0,0, -skew_angle ]){ + //translate( - first_front ) + polygon(pol); + } + } + } + } +} + +module Machine_RearProfile(){ + intersection(){ + Machine_Profile(); + translate([ -200 + machine_rear_to_front/2, -100 ]) { + square([200,200]); + } + } +} + module Machine_Rear(){ ////toplevel - big_rad = rearcurve_total_len - rearcurve_strt_len + rearcurve_rad; - small_rad = rearcurve_rad + rearcurve_rad_slop; - translate([ 250 - cutout_l_end_x + rearedge_len, + translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len, cutout_tile11_y, 0 ]){ //%cube([20,20,20]); @@ -365,36 +429,36 @@ module Machine_Rear(){ ////toplevel cube([ reartablet_x+1, reartablet_y+1, 20 ]); + } + translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len, + cutout_tile11_y, + 0 ]){ translate([ rearcurve_strt_len, 0, - 0 ]){ - translate([ 0, + rearcurve_z_slop ]){ + translate([ 1, 0, - -rearcurve_rad + 0 ]){ - rotate([0,-90,0]){ - rotate([0,0, 360/8/2]) - cylinder(r = small_rad, h= rearcurve_strt_len); + rotate([0,-90,0])rotate([0,0,-90]){ + linear_extrude(height= rearcurve_strt_len + 1) + Machine_RearProfile(); } } translate([ 0, 0, - big_rad - rearcurve_rad ]) { + rearcurve_double_inrad ]) { intersection(){ rotate([90,0,0]){ - rotate_extrude(convexity=10) { - translate([ big_rad, - 0 ]) { - hull(){ - circle(r= small_rad); - translate([200,0]) - circle(r= small_rad); - } + rotate_extrude(convexity=10, $fn=32) { + rotate([0,0,90]) translate([ 0, + -rearcurve_double_inrad ]) { + Machine_RearProfile(); } } } mirror([0,0,1]) - cube([150,150,150]); + translate([0,-75,0]) cube([150,150,150]); } } } @@ -433,7 +497,7 @@ m4_define(`R_EDGE',`$1[$2],$1[(($2)+1)%4]') module Tile02(){ ////toplevel sz = [100,170]; - c0 = -sz; + c0 = tile02_tr + -sz; c = Rectangle_corners(c0, sz); posts = Rectangle_corners2posts(c); rcs = [R_EDGE(c,0)]; @@ -453,7 +517,7 @@ module Tile02(){ ////toplevel module Tile12(){ ////toplevel sz = [100,250]; - c0 = [-sz[0], 0]; + c0 = tile02_tr + [-sz[0], 0]; c = Rectangle_corners(c0, sz); posts = Rectangle_corners2posts(c); rcs = [R_EDGE(c,3)]; @@ -471,12 +535,12 @@ module Tile12(){ ////toplevel RoundCornerAdd(rcs); } -tile_01_11_cnr = [250, 0] + [-cutout_tile11_x, 0]; -tile_11_10_cnr = [250, 0] + [0, cutout_tile11_y]; +tile_01_11_cnr = tile01_tr + [-cutout_tile11_x, 0]; +tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y]; module Tile11(){ ////toplevel sz = [250,250]; - c0 = [0,0]; + c0 = tile02_tr + [0,0]; c = Rectangle_corners(c0, sz); cnr_posts = Rectangle_corners2posts(c); posts = concat( @@ -499,11 +563,11 @@ module Tile11(){ ////toplevel } } -tile_01_00_cnr = [250, 0] + [0, -cutout_tile01_y]; +tile_01_00_cnr = tile01_tr + [0, -cutout_tile01_y]; module Tile01(){ ////toplevel sz = [250,170]; - c0 = [0,-sz[1]]; + c0 = tile02_tr + [0,-sz[1]]; c = Rectangle_corners(c0, sz); cnr_posts = Rectangle_corners2posts(c); posts = concat( @@ -527,7 +591,7 @@ module Tile01(){ ////toplevel module Tile10(){ ////toplevel sz = [250,250]; - c0 = [sz[0],0]; + c0 = tile02_tr + [sz[0],0]; c = Rectangle_corners(c0, sz); cnr_posts = Rectangle_corners2posts(c); cty = cutout_tile11_y; @@ -564,3 +628,6 @@ module Demo(){ ////toplevel //TestPiece1(); //TestPiece2(); //Demo(); + +//Machine_Profile(); +//Machine_RearProfile();