// -*- 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;
+plugl = 12;
+plugwmin = 3;
+plugh = 10;
+plugslope = 0.5;
+plugwmax = plugwmin + plugh * plugslope * 2;
+
+trestlelegw = 10;
+trestlebaseh = 10;
+trestleplugd = 1;
+
+topcylthick = 3;
+topcylbasedepth = 4;
+
+module Plug(d=0){
+ a = -atan(plugslope);
+ tdx = d * cos(a);
+ tdy = d * sin(a);
+ bdx = d / cos(a);
+ translate([-d,0,0]) rotate([90,0,90]) linear_extrude(height=plugl+0.1+d*2){
+ polygon([[-(plugwmin/2 + bdx), 0],
+ [-(plugwmax/2 + tdx), plugh + tdy],
+ [+(plugwmax/2 + tdx), plugh + tdy],
+ [+(plugwmin/2 + bdx), 0]]);
+ }
+}
+
module Bar(){
spoolw = spoolwidth + spoolwidthgap*2;
barz = barradz * 0.5;
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(){
+ legang = atan2(trestlebase/2, trestleheight);
+ eplen = sqrt(trestleheight*trestleheight + trestlebase*trestlebase*0.25);
+ topcylr = max(plugwmax/2,
+ trestlelegw/2,
+ sqrt(plugwmin*2/4 + plugh*plugh)
+ ) + topcylthick + trestleplugd;
+
+ difference(){
+ union(){
+ for (mir=[0,1]) {
+ mirror([mir,0,0]) {
+ rotate([0,0, -90-legang])
+ ExtenderPillars(length=eplen+trestlelegw,
+ width=trestlelegw,
+ height=plugl,
+ baseweb=true);
+
+ translate([-trestlebase/2, -trestleheight, 0])
+ cylinder(r=trestlelegw/2*1.2, h=plugl);
+ }
+ }
+ intersection(){
+ translate([0, 3, 0])
+ cylinder(r=topcylr, h=plugl);
+ translate([-50, -topcylbasedepth, -1])
+ cube([100, 50, plugl+2]);
+ }
+
+ translate([-trestlebase/2, -trestleheight, 0])
+ ExtenderPillars(length=trestlebase, width=trestlebaseh*2, height=plugl);
+ }
+ translate([-300, -trestleheight-50, -1])
+ cube([600, 50, plugl+2]);
+
+ rotate([-90,-90,0])
+ Plug(d=trestleplugd);
+ }
+}
+
+//Bar();
+Trestle();
+
+//Plug(d=1);
+//ExtenderPillars(80,12,8, baseweb=true);