X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=flyscreen-handle.scad;h=35fd7ef1a9334e5f85f50a1d6b2c9ec4ef40f818;hb=9d2dcd1eca8ded93a99f127498391501d1f43bcd;hp=88924c9708a75525991d97c9af92bb7f1c0b8b9c;hpb=b800fc081204fcba76ae60f3adf5767af15d97ee;p=reprap-play.git diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad index 88924c9..35fd7ef 100644 --- a/flyscreen-handle.scad +++ b/flyscreen-handle.scad @@ -11,30 +11,38 @@ retain_rad = 1.65; retain_protr = 0.35; retain_hgap_adjust = 1.5; -retain_stalk_len = 6.5; +retain_stalk_len = 8.0; retain_stalk_h = 1.5; retain_bend_gap = 2.0; -retain_empir_angle = -25; -retain_pushmore_adj = 0.75; +retain_empir_angle = -10; +retain_pushmore_adj = 0.0; hgap_empir_adjust = -0.5 -2.50; topprotr_rad = 0.35; bot_overlap = 5; -bot_w = 3; +top_w = 3; +bot_w = 5; -handle_w = 10; +handle_w = 8; handle_rh = 3; handle_rcut = 3; cutout_gap = 1.5; total_len = 40; +retain_len = 8; basics_len = 8; overret_hch = 5; +peg_width_slop = 0.5; +peg_inner_thick = 1.0; + +peg_wedge_less = 1.0; +peg_wedge_more = 1.0; + // calculated ins_irad = openingcnr_dia/2 + gap; @@ -51,14 +59,23 @@ handle_x1 = handle_x0 + bot_w + handle_w; topprotr_y = -ins_irad + opening_topprotr; retain_mxy = [handle_x0 - retain_rad - retain_hgap_adjust, - -ins_orad + retain_rad - retain_protr - retain_pushmore_adj]; + -ins_orad + retain_rad - retain_protr]; retain_cutout_h = retain_rad * 2 + retain_bend_gap; overret_gaplen = retain_cutout_h / cos(retain_empir_angle); -retaining_len = total_len - overret_gaplen - basics_len * 2; -echo(retaining_len); +peg_width = retain_stalk_len - + (handle_x0 - retain_mxy[0]) / cos(retain_empir_angle) + - peg_width_slop; + +peg_height = retain_cutout_h - (retain_rad + retain_stalk_h) + + retain_pushmore_adj; + +retain1_len = retain_len + retain_stalk_len; +retain1_base = total_len - retain1_len; + +peg_len = retain_len; module InsertSection(){ hull(){ @@ -69,7 +86,7 @@ module InsertSection(){ topprotr_y - topprotr_rad]) circle(r=topprotr_rad, $fn=10); } - translate([0, -ins_orad]) square([ins_irad+1, ins_th]); + translate([0, -ins_orad]) square([ins_irad, ins_th]); intersection(){ translate([0, -ins_irad]) mirror([1,1]) @@ -93,7 +110,7 @@ module HandleSection(){ } } hull(){ - for (x= [handle_x0 + bot_w + handle_rcut/2, + for (x= [handle_x0 + top_w + handle_rcut/2, handle_x1 - handle_rh/2 - handle_rcut/2]) { translate([x, handle_y1]) circle(r = handle_rcut/2, $fn=20); @@ -115,11 +132,31 @@ module RetainSection(){ translate(retain_mxy) { rotate(retain_empir_angle) { circle(r=retain_rad, $fn=20); - square([retain_stalk_len + 1, retain_stalk_h]); + translate([0, -retain_pushmore_adj]) + square([retain_stalk_len + 1, retain_stalk_h]); } } } +module PegSection(delta){ + hull(){ + translate([0, -delta/2]) + square([0.1, + peg_height + delta]); + translate([peg_width - 0.1, + peg_height/2 - peg_inner_thick/2]) + square([0.1, peg_inner_thick]); + } +} + +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) { @@ -157,31 +194,43 @@ module BasicSection(){ HandleSection(); } -module Handle(){ - bs0 = retaining_len + overret_gaplen + basics_len; - bs1 = bs0 + overret_hch; - linear_extrude(height=total_len, convexity=100) GappingSection(); +module PegSectionSlice(lambda) { + delta = peg_wedge_more * (1-lambda) + -peg_wedge_less * lambda; + z = peg_len * lambda; + translate([0,0, z]) + linear_extrude(height=0.1) + PegSection(delta); +} - translate([0,0, basics_len]) { - intersection(){ - linear_extrude(height=retaining_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 Peg(){ + iters = 20; + for (i = [0 : iters-1]) { + lambda = i/iters; + hull(){ + PegSectionSlice(lambda); + PegSectionSlice(lambda + 1/iters); } } +} - for (z= [0, bs1]) { - translate([0,0, z]) - linear_extrude(height= basics_len) - BasicSection(); - } +module PegPrintL(){ + rotate([0,-90,0]) Peg(); +} + +module PegPrintR(){ + mirror([1,0,0]) PegPrintL(); +} + +module Handle(){ + bs1 = retain_len + overret_gaplen + 4; + + translate([0,0,0]) + linear_extrude(height= retain_len) + WithRetainSection(); + + translate([0,0, bs1]) + linear_extrude(height= basics_len) + BasicSection(); translate([0,0, bs1+0.1]) mirror([0,0,1]) { intersection_for (sl=[0,1]) { @@ -193,11 +242,29 @@ module Handle(){ BasicSection(); } } + + 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 Demo(){ color("red") translate([0,0,-3]) BasicSection(); color("blue") translate([0,0,3]) WithRetainSection(); + color("orange") translate([0,0,7]) PegSectionForDemo(0); } module Test(){ @@ -208,6 +275,13 @@ module Test(){ } } +module PegTestKit(){ + PegPrintL(); + translate([2,0,0]) PegPrintR(); + translate([0,-2,0]) + linear_extrude(height=retain_len, convexity=100) WithRetainSection(); +} + //Demo(); //HandleSection(); //InsertSection(); @@ -215,5 +289,8 @@ module Test(){ //BasicSection(); //GappingSection(); //Test(); +//Peg(); +//PegPrintR(); +PegTestKit(); //Demo(); -Handle(); +//Handle();