X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=flyscreen-handle.scad;h=5f1f643f6d0abf3b405c6da2c4bcc1756c34eeb8;hp=5d8a65fa5d83c7163f360fceb168cc1b62f708c4;hb=3c75c6575c9ec874afd93fe9d2e1c7f28390806f;hpb=622f47a84dcc117f623ccb0bdb4c11a98d4d8f64 diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad index 5d8a65f..5f1f643 100644 --- a/flyscreen-handle.scad +++ b/flyscreen-handle.scad @@ -1,246 +1,258 @@ // -*- C -*- -opening_height = 7.84 - 0.3 + 0.60; -opening_depth = 6.0; // 7.88; -openingcnr_dia = 2.75; -opening_topprotr = 1.54; +opening_height = 7.84; +opening_depth = 7.88; +openingedge_dia = 2.00; +opening_protrh = 2.00; -gap = 0.25; +pivot_x = 6; +inside_len = 4; -retain_rad = 1.65; -retain_protr = 0.35; -retain_hgap_adjust = 1.5; +pivoting_gap = 0.1; -retain_stalk_len = 8.0; -retain_stalk_h = 1.5; -retain_bend_gap = 2.0; -retain_empir_angle = -10; -retain_pushmore_adj = 0.0; +outside_gap = 3; +outside_len = 13; +outend_height = 3; -hgap_empir_adjust = -0.5 -2.50; +outside_len_bot = 23; -topprotr_rad = 0.35; +outside_pushh = 4; +outside_pushslope = 1.4; +outside_push_inadj = 0.82; -bot_overlap = 4; -bot_w = 3; +ourcirc_r = 0.5 / 2; -handle_w = 10; -handle_rh = 3; -handle_rcut = 3; +ribble_dia = 2.2;; -cutout_gap = 1.5; +opening_protr_slop = 0.1; -total_len = 40; -retain_len = 8; -basics_len = 8; +intooth_top_slop = 0.1; +inside_h_xgap = 1; -overret_hch = 5; +pivot_r = 2; +pivot_slop = 0.25; -peg_width_slop = 0.5; +strap_above = 0.1; +strap_th = 2.5; +strap_below = 3; +strap_width = 5; + +width = 35; +nstraps = 2; + +test_width = 5; // calculated -ins_irad = openingcnr_dia/2 + gap; -ins_orad = openingcnr_dia/2 + opening_height - gap; -ins_th = ins_orad - ins_irad; +inside_h = opening_height/2 - opening_protrh - inside_h_xgap/2; -handle_x0 = ins_irad + hgap_empir_adjust; -handle_h = bot_overlap + ins_th; -handle_y0 = -ins_orad-bot_overlap; -handle_y1 = handle_y0 + handle_h; +edge_or = openingedge_dia/2 + opening_protr_slop; -handle_x1 = handle_x0 + bot_w + handle_w; +Q0 = [ openingedge_dia/2, + openingedge_dia/2 + opening_height/2 ]; -topprotr_y = -ins_irad + opening_topprotr; +p4p5d = [edge_or + ourcirc_r, 0]; -retain_mxy = [handle_x0 - retain_rad - retain_hgap_adjust, - -ins_orad + retain_rad - retain_protr]; +P0 = [ pivot_x, pivoting_gap ]; +P4 = Q0 - p4p5d; +P3t = [ P4[0], Q0[1] - openingedge_dia/2 + opening_protrh + - intooth_top_slop - ourcirc_r ]; +P2 = P4 + [ -(inside_len - ourcirc_r*2), 0 ]; +P1 = [ P2[0], P3t[1] - (inside_h + ourcirc_r*2) ]; -retain_cutout_h = retain_rad * 2 + retain_bend_gap; +P5 = Q0 + p4p5d; -overret_gaplen = retain_cutout_h / cos(retain_empir_angle); +P8t = [ outside_len - ourcirc_r, P5[1] ]; +P9t = P8t + [ 0, -(strap_above + strap_th + strap_below - ourcirc_r*2) ]; -peg_width = retain_stalk_len - - (handle_x0 - retain_mxy[0]) / cos(retain_empir_angle) - - peg_width_slop; +P9b = [ P9t[0], -P9t[1] + outside_gap ]; +P8b = P9b + [ 0, outend_height ]; -peg_height = retain_cutout_h - (retain_rad + retain_stalk_h) - + retain_pushmore_adj; +P89eadj = [ outside_len_bot - outside_len, 0 ]; +P8eb = P8b + P89eadj; +P9eb = P9b + P89eadj; -retain1_len = retain_len + retain_stalk_len; -retain1_base = total_len - retain1_len; +P6t = P5 + [ 0, outside_pushh - ourcirc_r*2 ]; +P7 = [ P6t[0] + (P6t[1] - P1[1]) / outside_pushslope, + P1[1] ]; -module InsertSection(){ - hull(){ - translate([-ins_irad, -ins_irad]) - mirror([1, 0]) - square([opening_depth - ins_irad, 0.1]); - translate([-ins_irad - topprotr_rad, - topprotr_y - topprotr_rad]) - circle(r=topprotr_rad, $fn=10); +P3a = P3t + [ -outside_push_inadj, 0 ]; +P6a = P6t + [ -outside_push_inadj, 0 ]; + +outside_push_inadj_slope = (P3t[1]-P4[1]) / (P6a[1]-P5[1]); + +ribble_rad = ribble_dia/2; + +kit_adj_shift = -opening_height - 2.0; + +module ExtrusionSect(){ + cr = openingedge_dia/2; + toph = opening_height/2 + opening_protrh; + + for (my=[0,1]) { + mirror([0,my]) { + translate(Q0) { + hull(){ + circle(r=cr, $fn=20); + translate([-cr,10]) square([cr*2, 1]); + } + } + } } - translate([0, -ins_orad]) square([ins_irad+1, ins_th]); - intersection(){ - translate([0, -ins_irad]) - mirror([1,1]) - square([100, opening_depth]); + translate([-opening_depth, -toph]) { difference(){ - circle(r= ins_orad); - circle(r= ins_irad, $fn=20); + translate([-5,-5]) + square([opening_depth+6, toph*2+10]); + square([opening_depth+2, toph*2]); } } } -module HandleSection(){ +module PsHull(ps) { + hull(){ + for (p = ps) { + translate(p) + circle(r = ourcirc_r, $fn=10); + } + } +} + +module LeverSect(top, inadj=false){ + P3 = inadj ? P3a : P3t; + P6 = inadj ? P6a : P6t; + P8 = top ? P8t : P8b; + P9 = top ? P9t : P9b; difference(){ - hull(){ - translate([handle_x0, handle_y0]) - square([bot_w, handle_h]); - for (y= [handle_y1 - handle_rh/2, - handle_y1 - ins_th + handle_rh/2]) { - translate([handle_x1 - handle_rh/2, y]) - circle(r= handle_rh/2, $fn=20); - } + union(){ + PsHull([P2,P3,P4]); + PsHull([P0,P1,P2,P5,P8,P9]); } hull(){ - for (x= [handle_x0 + bot_w + handle_rcut/2, - handle_x1 - handle_rh/2 - handle_rcut/2]) { - translate([x, handle_y1]) - circle(r = handle_rcut/2, $fn=20); + for (dp = [ [0,0], + (P6-P5), + (P3-P4) + ]) { + translate(Q0 + 5*dp) circle(r=edge_or, $fn=20); } } } - hull(){ - for (y= [handle_y1 - handle_rh/2, - handle_y1 - 3*handle_rh/2]) - translate([handle_x1 - handle_rh/2, y]) - circle(r = handle_rh/2, $fn=20); - } - translate([ handle_x1 - handle_rh*2, - handle_y1 - handle_rh/2 ]) - circle(r = handle_rh/2, $fn=20); } -module RetainSection(){ - translate(retain_mxy) { - rotate(retain_empir_angle) { - circle(r=retain_rad, $fn=20); - translate([0, -retain_pushmore_adj]) - square([retain_stalk_len + 1, retain_stalk_h]); +module StrapSectTop(){ + translate(P9t + ourcirc_r * [+1,-1]) { + difference(){ + circle(r = strap_below + strap_th, $fn=40); + circle(r = strap_below, $fn=40); } } } -module PegSection(delta){ - square([peg_width, - peg_height + delta]); -} - -module PegSectionForDemo(delta){ - translate(retain_mxy) - rotate(retain_empir_angle) - translate([retain_stalk_len - peg_width - peg_width_slop/2, - retain_stalk_h - retain_pushmore_adj]) - PegSection(delta); -} - -module RetainCutout(gapping=false){ - translate(retain_mxy) { - rotate(retain_empir_angle) { - translate([-50, -retain_rad]) { - square([50 + retain_stalk_len, - retain_cutout_h]); +module StrapSectBot(){ + mirror([0,1]){ + for (dx = [ -(strap_below + strap_th), + 0 ]) { + translate(P9b + [ ourcirc_r + dx, -10 ]) { + square([strap_th, 20]); } } } -} +} -module GappingSection(){ - difference(){ - union(){ - InsertSection(); - HandleSection(); - } - RetainCutout(true); +module Ribbles(xmax, xmin, y){ + for (x = [ xmax + ourcirc_r - ribble_rad : + -ribble_rad * 4 : + xmin ]) { + translate([x, y]) + circle(r = ribble_rad, $fn=20); } } -module WithRetainSection(){ +module LeverSectTop(){ difference(){ union(){ - InsertSection(); - HandleSection(); + LeverSect(true, false); + Ribbles(P8t[0], + Q0[0] + edge_or + ribble_rad*2, + P5[1] + ourcirc_r); } - RetainCutout(); + translate([pivot_x,0]) circle(r= pivot_r + pivot_slop, $fn=20); } - RetainSection(); } -module BasicSection(){ - InsertSection(); - HandleSection(); +module LeverSectBot(inadj=false){ + P6 = inadj ? P6a : P6t; + mirror([0,1]) { + LeverSect(false, inadj); + PsHull([P5,P6,P7]); + PsHull([P8b,P8eb,P9eb,P9b]); + Ribbles(P8eb[0], + P9b[0], + P8eb[1]); + translate([pivot_x,0]) circle(r=pivot_r, $fn=20); + } } -module Handle(){ - bs1 = retain_len + overret_gaplen + 4; +module Demo(){ + translate([0,0,-5]) color("white") ExtrusionSect(); + LeverSectTop(); + translate([0,0,5]) LeverSectBot(); + color("black") LeverSectBot(true); + color("blue") translate([0,0,10]) StrapSectTop(); + color("purple") translate([0,0,-10]) StrapSectBot(); +} - translate([0,0,0]) - linear_extrude(height= retain_len) - WithRetainSection(); +module SomeLever() { + // SomeLever(){ LeverBot(inadj); LeverSectBot(); } + difference(){ + linear_extrude(height=width, convexity=100) children(0); + for (i = [ 0 : nstraps - 1 ]) { + translate([0,0, (i + 0.5) / nstraps * width - strap_width/2]) + linear_extrude(height=strap_width, convexity=10) + children(1); + } + } +} - translate([0,0, bs1]) - linear_extrude(height= basics_len) - BasicSection(); +module Test(){ + linear_extrude(height=test_width, convexity=100) { + translate([0,2,0]) LeverSectTop(); + LeverSectBot(); + translate([0,kit_adj_shift]) LeverSectBot(true); + } +} - translate([0,0, bs1+0.1]) mirror([0,0,1]) { - intersection_for (sl=[0,1]) { - multmatrix([[1,0,0,0], - [0,1,sl,0], - [0,0,1,0], - [0,0,0,1]]) - linear_extrude(height= overret_gaplen + 10, convexity=100) - BasicSection(); - } +module LeverTop(){ ////toplevel + SomeLever(){ + LeverSectTop(); + StrapSectTop(); } - - linear_extrude(height=total_len, convexity=100) GappingSection(); - - translate([0,0, retain1_base]) { - intersection(){ - linear_extrude(height=retain1_len, convexity=100) - WithRetainSection(); - translate([retain_mxy[0], retain_mxy[1], 0]) - rotate([0,0, retain_empir_angle]) - translate([retain_stalk_len, -30, 0]) - multmatrix([[1,0,-1,0], - [0,1,0,0], - [0,0,1,0], - [0,0,0,1]]) - cube([50, 60, 50]); - } +} +module LeverBot(){ ////toplevel + SomeLever(){ + LeverSectBot(); + StrapSectBot(); + } +} +module LeverBotAdj(){ ////toplevel + SomeLever(){ + LeverSectBot(true); + StrapSectBot(true); } } -module Demo(){ - color("red") translate([0,0,-3]) BasicSection(); - color("blue") translate([0,0,3]) WithRetainSection(); - color("orange") translate([0,0,7]) PegSectionForDemo(0); +module Kit(){ ////toplevel + translate([0,2,0]) LeverTop(); + LeverBot(); } -module Test(){ - linear_extrude(height=2) { - WithRetainSection(); - translate([0, -handle_y0 + topprotr_y + 10]) - BasicSection(); - } +module KitAdj(){ ////toplevel + translate([0,2,0]) LeverTop(); + LeverBotAdj(); } -Demo(); -//HandleSection(); -//InsertSection(); -//WithRetainSection(); -//BasicSection(); -//GappingSection(); -//Test(); +//LeverSectBot(true); //Demo(); -//Handle(); +//LeverTop(); +//Test(); +//Kit(); +//KitAdj();