X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=doveclip.scad;h=0536c1c4ecbc0ed498fc748618ea261bba830068;hp=a7dc6bd1e6c8d9a0e6a4f4aaed66dcdd188f1cea;hb=b0ff0b516641f6de90ffc4710d40bed2ae727aab;hpb=53a30809514a5f7530f2b8d4158da21cec2e6657 diff --git a/doveclip.scad b/doveclip.scad index a7dc6bd..0536c1c 100644 --- a/doveclip.scad +++ b/doveclip.scad @@ -1,4 +1,23 @@ // -*- C -*- +// +// doveclip.scad +// +// 3D design for a fastener suitable for Reprapss +// Copyright 2012,2016 Ian Jackson +// +// This work is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This work is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this work. If not, see . + toothheight = 1.2; webthick = 1.8; @@ -76,11 +95,9 @@ module DoveClipPairSane(baseextend=0, h=7, count=2) { function DoveClipPairSane_width(count=2) = 2 * (nomrad + jawthick + ((nomrad*2 + jawthick) * (count-1)/2)); -module ExtenderPillars(length, width, height, - pillarw=3.5, pillarslope=0.75, webthick=1, - baseweb=false, basewebthick=1) { +module ExtenderPillar(length, height, + pillarw=3.5, pillarslope=0.75, webthick=1) { pillarr=pillarw/2; - pilesw = width - pillarw; d = 0.25; intangle = atan(pillarslope); @@ -89,24 +106,33 @@ module ExtenderPillars(length, width, height, polyex = -tan(intangle+90)*pillarr; webmidy = height/2+d; - for (ymir=[0,1]) mirror([0,ymir,0]) translate([0,-pilesw/2,0]) { - for (xmir=[0,1]) - translate([0,0,height/2]) mirror([0,0,xmir]) - translate([0,0,-height/2]) { - intersection() { - translate([-1, -pillarr-5, 0.01]) - cube([length+2, height+pillarr*2+10, pilesw]); - mirror([1,0,0]) rotate([0,-90,0]) - linear_extrude(height=length) union(){ - circle(r=pillarr, $fn=20); - polygon([[polyjx,polyjy-0.1], [polyex, 0], - [polyjx,-(polyjy-0.1)]]); - polygon([[0,-webthick/2], [0,webthick/2], - [webmidy,webthick/2], [webmidy,-webthick/2]]); - } - } + for (xmir=[0,1]) + translate([0,0,height/2]) mirror([0,0,xmir]) + translate([0,0,-height/2]) { + intersection() { + translate([-1, -pillarr-5, 0.01]) + cube([length+2, height+pillarr*2+10, height]); + mirror([1,0,0]) rotate([0,-90,0]) + linear_extrude(height=length) union(){ + circle(r=pillarr, $fn=20); + polygon([[polyjx,polyjy-0.1], [polyex, 0], + [polyjx,-(polyjy-0.1)]]); + polygon([[0,-webthick/2], [0,webthick/2], + [webmidy,webthick/2], [webmidy,-webthick/2]]); } + } } +} + +module ExtenderPillars(length, width, height, + pillarw=3.5, pillarslope=0.75, webthick=1, + baseweb=false, basewebthick=1) { + pilesw = width - pillarw; + + for (ymir=[0,1]) mirror([0,ymir,0]) translate([0,-pilesw/2,0]) { + ExtenderPillar(length, height, pillarw, pillarslope, webthick); + } + if (baseweb) { translate([0, -pilesw/2, 0]) cube([length, pilesw, basewebthick]);