// -*- C -*-
spoolwidth = 80; // fixme needs to be measured
+trestleheight = 80; // fixme needs to be checked
+trestlebase = 80; // fixme needs to be checked
include <doveclip.scad>
guidewidth = 3;
guiderad = 20;
-prongwx=8;
-prongwy=9;
-prongh=10;
-prongming=-0.5;
-prongmaxg= 1.5;
+legw = 12;
+plugl = 20;
+plugwmin = 3;
+plugh = 10;
+plugslope = 0.5;
+plugwmax = plugwmin + plugh * plugslope * 2;
-module Prong(){
-// wxmin = prongwx
-// translate([0, p
-// cube([
-}
+trestlelegw = 10;
+trestlebaseh = 10;
+trestleplugd = 1;
+
+topblockthick = 4;
+topblockbasedepth = 5;
+
+pinbasew = 5.0;
+pinminh = 1.5;
+pinmaxh = 4.5;
+pindh = 0.50;
+pindwidth = 0.75;
+
+pintaperlen = plugwmax * 0.85;
+pinstraightlen = 10;
-module ProngHole(){
- wxmax = prongwx;
- wxmin = prongwx ;
+module Plug(d=0){
+ dw = d;
+ dh = d;
+ dhb = d*2;
+ a = atan(plugslope);
+ bdy = -dhb;
+ bdx = dw / cos(a) + bdy * plugslope;
+ tdy = dh;
+ tdx = bdx + tdy * plugslope;
+ translate([-d,0,0]) rotate([90,0,90]) linear_extrude(height=plugl+0.1+d*2){
+ polygon([[-(plugwmin/2 + bdx), bdy],
+ [-(plugwmax/2 + tdx), plugh + tdy],
+ [+(plugwmax/2 + tdx), plugh + tdy],
+ [+(plugwmin/2 + bdx), bdy]]);
+ }
}
-module Bar(){
+module Bar(){ ////toplevel
spoolw = spoolwidth + spoolwidthgap*2;
barz = barradz * 0.5;
biggestw = spoolw + 50;
translate([spoolw/2,0,0])
rotate([0,90,0]) cylinder(r=guiderad, h=guidewidth, $fn=60);
}
+ translate([spoolw/2 + guidewidth, 0, 0])
+ Plug();
}
}
translate([-biggestw/2, -50, 0])
}
}
-Bar();
+module Trestle(){ ////toplevel
+ legang = atan2(trestlebase/2, trestleheight);
+ eplen = sqrt(trestleheight*trestleheight + trestlebase*trestlebase*0.25);
+ topblockw = plugwmax + trestleplugd*2 + topblockthick*2;
+
+ pinholebasew = pinbasew + pindwidth*2;
+ pinholeh = pinmaxh + pindh;
+
+ difference(){
+ union(){
+ for (mir=[0,1]) {
+ mirror([mir,0,0]) {
+ rotate([0,0, -90-legang])
+ ExtenderPillars(length=eplen+trestlelegw,
+ width=trestlelegw,
+ height=legw,
+ baseweb=true);
+
+ translate([-trestlebase/2, -trestleheight, 0])
+ cylinder(r=trestlelegw/2*1.2, h=plugl);
+ }
+ }
+ translate([-topblockw/2, -topblockbasedepth, 0])
+ cube([topblockw,
+ topblockbasedepth + plugh + topblockthick
+ + (pinmaxh - pinminh)*0.6 + pindh,
+ plugl]);
+
+ translate([-trestlebase/2, -trestleheight, 0])
+ ExtenderPillars(length=trestlebase, width=trestlebaseh*2, height=legw);
+ }
+ translate([-300, -trestleheight-50, -1])
+ cube([600, 50, plugl+2]);
+
+ rotate([-90,-90,0])
+ Plug(d=trestleplugd);
+
+ for (rot=[0,180]) {
+ translate([0,0,plugl/2]) rotate([0,rot,0]) translate([0,0,-plugl/2]) {
+ translate([-(topblockw*0.25+1),
+ plugh + pindh - (pinmaxh - pinminh)*0.75,
+ (plugl - pinholebasew*2)/3]) {
+ translate([0,0,pinholebasew/2]) rotate([-90,0,0]) %Pin();
+ rotate([0,90,0]) {
+ linear_extrude(height = topblockw*1.0+2) {
+ polygon([[-1.0 * pinholebasew, -0.01],
+ [-0.5 * pinholebasew, pinholeh],
+ [ 0 , -0.01]]);
+ }
+ }
+ }
+ }
+ }
+ }
+}
+
+module Pin(){ ////toplevel
+ rotate([90,0,90]) {
+ hull(){
+ for (mir=[0,1]) {
+ mirror([mir,0,0]) {
+ linear_extrude(height=0.1) {
+ polygon([[-0.01, 0],
+ [-0.01, pinminh],
+ [pinbasew*0.5*(pinminh/pinmaxh), 0]]);
+ }
+ translate([0,0,pintaperlen])
+ linear_extrude(height=pinstraightlen) {
+ polygon([[-0.01, 0],
+ [-0.01, pinmaxh],
+ [pinbasew*0.5, 0]]);
+ }
+ }
+ }
+ }
+ }
+}
+
+module TestKit(){ ////toplevel
+ translate([30,0,0]) Pin();
+ translate([30,30,0]) Pin();
+ translate([0,40,0]) intersection(){
+ Trestle();
+ translate([-50,-10,-1]) cube([100,100,100]);
+ }
+ intersection(){
+ translate([-60,0,0]) Bar();
+ cube(50,center=true);
+ }
+}
+
+//Bar();
+//Trestle();
+//Pin();
+//TestKit();
+//Plug(d=1);
+//ExtenderPillars(80,12,8, baseweb=true);