X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=crossbar-computer-led-mount.scad;h=535c680599d00addd496d5221d0a191e1425fe70;hp=4bc474a38aaed7b2bd82fe25b3866e30c7217432;hb=77c39f4394b1ede3825b88234a0d9832cc6d3b78;hpb=4f92d46640259aabd3e3d1f8b404256e20511e49 diff --git a/crossbar-computer-led-mount.scad b/crossbar-computer-led-mount.scad index 4bc474a..535c680 100644 --- a/crossbar-computer-led-mount.scad +++ b/crossbar-computer-led-mount.scad @@ -12,31 +12,47 @@ backfront_space_inside = 12; width_space_inside = 10; backfront_mate_size = 25; -tower_frontheight = 20; +tower_frontheight = 10; +tower_base_height = 20; tower_slot_width = 3; -cableclamp_ctie_width = 3 + 0.5; -cableclamp_ctie_thick = 2 + 0.5; +cableclamp_ctie_width = 4.0 + 1.0; +cableclamp_ctie_thick = 2.5 + 0.5; -lidclamp_ctie_width = 4.0 + 0.5; +lidclamp_ctie_width = 4.0 + 1.0; lidclamp_ctie_thick = 2.5 + 0.5; -base_ctie_width = 4.0 + 0.5; +base_ctie_width = 4.0 + 1.0; base_ctie_thick = 2.5 + 0.5; -tube_ctie_width = 5 + 0.5; -tube_ctie_thick = 3 + 0.5; +tube_ctie_width = 4.0 + 1.0; +tube_ctie_thick = 2.5 + 0.5; // tuning tower_over_angle = 45; tower_wall_thick = 1.6; -tower_base_height = 10; tower_forehead_angle = 30; lid_wall_thick = 1.6; lid_slop = 0.75; +//cableclamp_ctie_anchor = 5; +lidclamp_cableclamp_ctie_between = 0; base_ctie_anchor = 5; tube_ctie_anchor = 5; +protrusion_size = 2; +protrusion_none_frontback = 10; +protrusion_slop = 0.25; +cableclamp_ctie_z = tower_frontheight/2; + +towerleg_backfront = 5; +towerleg_width = 3; +towerleg_foot_gap = 2; +towerleg_foot_backfront = 20; +towerleg_foot_width = 40; +towerleg_foot_height = 10; +towerleg_yslope = 0.7; +towerleg_xslope = 0.3; +echo(sqrt(towerleg_yslope*towerleg_yslope+towerleg_xslope*towerleg_xslope)); //--- tests --- @@ -86,6 +102,8 @@ base_width = 0.7 * crossbar_dia; base_backfront = backfront_mate_extra - tower_rearwall_y; base_height = led_tip_height_above_crossbar - tower_height_contribution; +protrusion_frontback = base_backfront - protrusion_none_frontback; + echo(tower_height_contribution, base_height); module TowerWallCrossSection(){ @@ -176,36 +194,71 @@ module TowerMain(){ module LedHole(){ translate([0, led_head_y, led_head_z]) - rotate([90 + led_angle]) + rotate([90 + led_angle, 0, 0]) translate([0,0,-10]) - cylinder(r=led_dia/2, h=led_depth+0.1+10, $fn=30); + cylinder(r=led_dia/2, h=led_depth+1+10, $fn=26, $fa=10); } -module Tower(){ ////toplevel +module TowerProper(){ difference(){ TowerMain(); LedHole(); // passages for cable ties translate([0, tower_rearwall_y/2, - tower_frontheight/2 - + cableclamp_ctie_width/2 + lidclamp_ctie_thick/2]) + cableclamp_ctie_z + + cableclamp_ctie_width/2 + lidclamp_ctie_thick/2 + + lidclamp_cableclamp_ctie_between]) cube([50, lidclamp_ctie_width, lidclamp_ctie_thick], center=true); translate([0, (backfront_mate_extra+tower_rearwall_y)/2, - -tower_base_height/2]) + -tower_base_height + + max(protrusion_size + protrusion_slop + 0.1, + base_ctie_anchor_eff)]) cube([50, base_ctie_width, base_ctie_thick], center=true); +// for (extra_y=[0, -(cableclamp_ctie_thick + cableclamp_ctie_anchor)]) { +// translate([-tower_width/2, +// -cableclamp_ctie_thick/2 - tower_wall_thick + extra_y, +// cableclamp_ctie_z]) +// cube([tower_wall_thick+2, +// cableclamp_ctie_thick, +// cableclamp_ctie_width], center=true); +// } for (mir=[0,1]) - mirror([mir,0,0]) { - translate([tower_width/4, 20, tower_frontheight/2]) + mirror([mir,0,0]) { + translate([tower_width/4, 20, cableclamp_ctie_z]) cube([cableclamp_ctie_thick, tower_wall_thick*2+1+40, cableclamp_ctie_width], center=true); } + translate([0, tower_rearwall_y, -tower_base_height]) + BaseRegistrationProtrusion(protrusion_slop); } } +module Tower(){ ////toplevel + TowerProper(); + for (mir=[0,1]) { + mirror([mir,0,0]){ + translate([0, + tower_rearwall_y + 0.1, + -1]) + mirror([0,0,1]) + multmatrix([[1,0, towerleg_xslope,0], + [0,1,-towerleg_yslope,0], + [0,0,1,0], + [0,0,0,1]]) + cube([towerleg_width, towerleg_backfront, tower_base_height-2]); + } + } + translate([-towerleg_foot_width/2, + tower_rearwall_y - towerleg_foot_gap, + -tower_base_height]) + mirror([0,1,0]) + cube([towerleg_foot_width, towerleg_foot_backfront, towerleg_foot_height]); +} + module TowerMainHull(){ hull(){ TowerMain(); } } @@ -215,11 +268,11 @@ module Lid(){ difference(){ minkowski(){ TowerMainHull(); - sphere(r=lid_wall_thick+lid_slop, $fn=4); + sphere(r=lid_wall_thick+lid_slop, $fn=8); } minkowski(){ TowerMainHull(); - sphere(r=lid_slop, $fn=4); + sphere(r=lid_slop, $fn=6); } } translate([-50,-50,led_head_z]) cube([100,100,100]); @@ -230,7 +283,19 @@ module LidT(){ ////toplevel rotate([180,0,0]) Lid(); } -module Base(){ ////toplevel +module BaseRegistrationProtrusion(extra){ + size = protrusion_size + extra; + translate([0, base_backfront/2, 0]){ + hull(){ + translate([0,0, -0.5]) + cube([protrusion_size*2, protrusion_frontback, 1.0], center=true); + translate([0, 0, protrusion_size-0.5]) + cube([0.05, protrusion_frontback-protrusion_size*2, 1.0], center=true); + } + } +} + +module Base(){ difference(){ mirror([0,0,1]){ hull(){ @@ -240,14 +305,15 @@ module Base(){ ////toplevel cube([base_width, base_backfront, crossbar_dia/2]); } } - translate([-50, base_backfront/2, -base_ctie_anchor_eff]) + translate([0, base_backfront/2, -base_ctie_anchor_eff]) cube([100, base_ctie_width, base_ctie_thick], center=true); - translate([-50, base_backfront/2, -base_height + tube_ctie_anchor_eff]) + translate([0, base_backfront/2, -base_height + tube_ctie_anchor_eff]) cube([100, tube_ctie_width, tube_ctie_thick], center=true); translate([0, -1, -(base_height + crossbar_dia/2)]) rotate([-90,0,0]) cylinder(r=crossbar_dia/2, h=101); } + BaseRegistrationProtrusion(0.0); } module BaseT(){ ////toplevel @@ -256,6 +322,7 @@ module BaseT(){ ////toplevel module Demo(){ Tower(); + %Lid(); translate([0,0, 25]) Lid(); translate([0, tower_rearwall_y, -(tower_base_height+5)]) Base(); } @@ -267,6 +334,7 @@ module Demo(){ //LidT(); //Tower(); //Lid(); +//BaseRegistrationProtrusion(); //Base(); //BaseT(); -Demo(); +//Demo();