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=b4ec95486dd3a837aef686944e5b303e76b96ad6;hp=8b69b445499503991010b0295de2ce8ca08be2c4;hb=464ea5bfb20555916aa523b6d2745805347b4245;hpb=f5b8036d8023025c07f267bdb6984f4cc9efe127 diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4 index 8b69b44..b4ec954 100644 --- a/sewing-table.scad.m4 +++ b/sewing-table.scad.m4 @@ -30,12 +30,33 @@ demo_slop = 0.1; // cutout +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_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]; + +cutout_tile01_y = 170 - 147 + cutout_l_end_y_front_slop; +cutout_tile11_x = cutout_l_end_x + cutout_l_end_curve; +cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y; + +// rear curve -cutout_tile01_y = 170 - 147; -cutout_tile11_x = 22 + cutout_l_end_curve; -cutout_tile11_y = cutout_l_end_curve - cutout_tile01_y; +rearedge_len = 170; + +rearcurve_rad = 25.4; +rearcurve_strt_len = 65; +rearcurve_total_len = 84; + +rearcurve_rad_slop = 0.5; + +rearcurve_avoid_y = rearcurve_rad + 10; // calculated @@ -109,11 +130,17 @@ module TileBase(botleft, topright){ if (TEST) { translate( concat(botleft + [thehd[0], 0], [0]) ) Commitid_BestCount([ size[0] - thehd[0]*2, thehd[1] ]); - mirror([0,0,1]) { - translate(concat(botleft + [test_edge,test_edge], [test_tile_th])) - cube(concat(size - [test_edge,test_edge]*2, [tile_th])); - translate(concat(botleft_post, [-1])) - cube(concat(topright_post-botleft_post, [tile_th+2])); + difference(){ + mirror([0,0,1]) { + translate(concat(botleft + [test_edge,test_edge], [test_tile_th])) + cube(concat(size - [test_edge,test_edge]*2, [tile_th])); + translate(concat(botleft_post, [-1])) + cube(concat(topright_post-botleft_post, [tile_th+2])); + } + minkowski(){ + Machine(); + cube(max(test_edge, tile_hard_edge_hole_dist)*2, center=true); + } } } } @@ -301,6 +328,67 @@ module TestDemo(){ ////toplevel translate([ +thehd[0] + demo_slop, 0 ]) TestPiece2(); } + +module Machine_Arm(){ + ysz = cutout_l_end_y_total; + // assume the round end is arc of a circle + chordlen = dist2d([0,0], [ cutout_l_end_y, cutout_l_end_curve ]); + endrad = cutout_l_end_y / cutout_l_end_curve * chordlen; + + translate([0,0,-30]) linear_extrude(height=60) { + translate(tile01_tr + [0, (-cutout_tile01_y + cutout_tile11_y)/2]) { + intersection(){ + translate([-100, -ysz/2]) + square([400, ysz]); + translate([ endrad - cutout_tile11_x - cutout_l_end_x_slop, 0 ]) + circle(r=endrad, $fa=0.01,$fd=5); + } + } + } +} + +module Machine_Rear(){ + big_rad = rearcurve_total_len - rearcurve_strt_len + rearcurve_rad; + small_rad = rearcurve_rad + rearcurve_rad_slop; + translate([ 250 + rearedge_len - cutout_l_end_y + big_rad, + cutout_tile11_y, + 0 ]){ + translate([ 0, + 0, + -rearcurve_rad + ]){ + rotate([0,-90,0]){ + rotate([0,0, 360/8/2]) + cylinder(r = small_rad, h= rearcurve_strt_len); + } + } + translate([ 0, + 0, + big_rad - rearcurve_rad ]) { + 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); + } + } + } + } + mirror([0,0,1]) + cube([150,150,150]); + } + } + } +} + +module Machine(){ ////toplevel + Machine_Arm(); + Machine_Rear(); +} function Rectangle_corners(c0, sz) = // returns the corners of a rectangle from c0 to c0+sz @@ -318,6 +406,8 @@ function Rectangle_corners2posts(c) = module Rectangle_TileBase(c) { TileBase(c[0], c[2]); } +function Posts_interpolate_one(c0,c1) = [c0, (c0+c1)/2, c1]; + m4_dnl R_EDGE(c,ix) m4_dnl c is from Rectangle_corners and m4_dnl ix is a corner number @@ -365,9 +455,92 @@ 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]; + +module Tile11(){ ////toplevel + sz = [250,250]; + c0 = [0,0]; + c = Rectangle_corners(c0, sz); + cnr_posts = Rectangle_corners2posts(c); + posts = concat( + Posts_interpolate_one(cnr_posts[0], + cnr_posts[1] - [cutout_tile11_x, 0]), + [ cnr_posts[1] + [0, cutout_tile11_y], + cnr_posts[2], + cnr_posts[3] + ]); + difference(){ + union(){ + Rectangle_TileBase(c); + Posts(posts); + RoundEdge(R_EDGE(c,2)); + InterlockEdge(R_EDGE(c,3)); + } + InterlockEdge(c[0], tile_01_11_cnr, 1); + InterlockEdge(tile_11_10_cnr, c[2], 1); + Machine(); + } +} + +tile_01_00_cnr = [250, 0] + [0, -cutout_tile01_y]; + +module Tile01(){ ////toplevel + sz = [250,170]; + c0 = [0,-sz[1]]; + c = Rectangle_corners(c0, sz); + cnr_posts = Rectangle_corners2posts(c); + 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], + cnr_posts[3]) + ); + difference(){ + union(){ + Rectangle_TileBase(c); + Posts(posts); + RoundEdge(R_EDGE(c,0)); + InterlockEdge(tile_01_11_cnr, c[3]); + InterlockEdge(R_EDGE(c,3)); + } + InterlockEdge(c[1], tile_01_00_cnr, 1); + Machine(); + } +} + +module Tile10(){ ////toplevel + sz = [250,250]; + c0 = [sz[0],0]; + c = Rectangle_corners(c0, sz); + cnr_posts = Rectangle_corners2posts(c); + cty = cutout_tile11_y; + rcy = cty + rearcurve_avoid_y; + posts = [ cnr_posts[0] + [ 0, cty ], + cnr_posts[1] + [ -rearedge_len + cutout_l_end_x, rcy ], + cnr_posts[1] + [ 0, rcy ], + cnr_posts[2], + cnr_posts[3] ]; + difference(){ + union(){ + Rectangle_TileBase(c); + Posts(posts); + RoundEdge(R_EDGE(c,2)); + //InterlockEdge(tile_01_11_cnr, c[3]); + //InterlockEdge(R_EDGE(c,3)); + } + //InterlockEdge(c[1], tile_01_00_cnr, 1); + Machine(); + } +} + module Demo(){ ////toplevel translate(demo_slop*[-2,1]) color("blue") Tile12(); translate(demo_slop*[-2,0]) color("red") Tile02(); + translate(demo_slop*[-2,1]) color("orange") Tile11(); + translate(demo_slop*[-2,0]) color("purple") Tile01(); + translate(demo_slop*[-3,1]) color("blue") Tile10(); + %Machine(); } //TestPiece1();