vialtray: make a tray for vials containing 0402/0603 components (in progress)
This doesn't work yet. In particular, going through "cameo" doesn't seem the most convenient choice, since "cameo" requires paths to be closed, which is something the paths we use here aren't. (Conceptually, thet are closed, but the implementation skips some small segments.) This commit is just a snapshot before I experiment with changing the algorithm.
This commit is contained in:
Werner Almesberger
parent
6a3e471304
commit
1d72af733e
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vial tray: small lab vials are an excellent place to store 0402 and 0603
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components. The problem is how to store a large number of vials efficiently
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and in some order. This project is about milling openings for vials into a
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piece of wood.
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#!/bin/sh
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DIR=/home/moko/svn.openmoko.org/developers/werner/cncmap
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RECT=$DIR/rect/rect
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ALIGN=$DIR/align/align
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ZMAP=$DIR/zmap/zmap
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GP2RML=$DIR/gp2rml/gp2rml
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CAMEO=../../../cae-tools/cameo/cameo
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GEN=${1:-./pcb.pl}
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# manual tool positioning !!
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rdate="0 0 0 150 0 0 0 100 0"
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# lower Z by 0.5 mm relative to highest point (-56.8)
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Z=0
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rect=`$RECT $rdata | awk '{$3 = ""; print}'`
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# cameo: we inline the tool diameter with the data
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$GEN |
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awk '{ if ($3 != "") $3 += '$Z'; print $0; }' |
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$CAMEO -d 0 |
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$ALIGN 0 1 $rect |
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# angle, reference (lower left corner), rect
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$GP2RML 20 2 2
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# clearance, xy speed, z speed
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# since everything is in the same plane, z clearance must be thickness plus
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# real clearance !
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@ -0,0 +1,258 @@
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#!/usr/bin/perl
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use POSIX;
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$PI = atan2(1, 1)*4;
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$epsilon = 0.02;
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$d = 25.4/8; # 1/8"
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$r = $d/2;
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sub orig
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{
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$x0 = $_[0];
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$y0 = $_[1];
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}
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sub mil
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{
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return $_[0]/1000*25.4;
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}
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sub cut
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{
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if (defined $x) {
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if ($x == $_[0]+$x0 && $y == $_[1]+$y0) {
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shift @_;
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shift @_;
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} else {
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print "\n";
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}
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}
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while (@_) {
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$x = shift @_;
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$y = shift @_;
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$x += $x0;
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$y += $y0;
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print "$x $y $z\n";
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}
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}
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sub mm
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{
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local ($x, $y, @m) = @_;
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return ($x*$m[0]+$y*$m[1], $x*$m[2]+$y*$m[3]);
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}
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sub a2m
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{
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local ($a) = $_[0]/180*$PI;
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return (cos($a), sin($a), -sin($a), cos($a));
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}
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sub yarc
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{
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local ($x, $y, $dx, $dy0, $dy1, $r, @m) = @_;
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local ($dy);
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$dx = ($dx > 0 ? 1 : -1)*sqrt($r*$r-$dy0*$dy0+$epsilon);
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$dy = $dy0;
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while (1) {
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if ($dy0 < $dy1) {
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last if $dy >= $dy1-$epsilon;
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} else {
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last if $dy <= $dy1+$epsilon;
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}
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print $x+$dx, " ", $y+$dy, " ", $z, "\n";
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($dx, $dy) = &mm($dx, $dy, @m);
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}
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}
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sub circ
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{
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local ($x, $y, $r, $n) = @_;
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local ($a, $dx, $dy);
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for ($a = 0; $a <= 2*$PI+$epsilon; $a += 2*$PI/$n) {
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$dx = $r*sin($a);
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$dy = $r*cos($a);
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print $x+$dx, " ", $y+$dy, " ", $z, "\n";
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}
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}
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#
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# general shape:
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#
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# <------ 150 ------>
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# +-------------------+
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# | | ^
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# | () () () () () () | |
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# | () () () () () () | | 90
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# | () () () () () () | |
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# | () () () () () () | |
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# | | v
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# +-------------------+
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#
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# start depth
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$z0 = -0.5;
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# floor depth
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$zf = -15;
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# maximum depth step
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$zs = 2;
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# distance between columns
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$xs = 24;
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# distance between vial centers within columns
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$ys = 20;
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# vial diameter
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$vd = 18.6;
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# minimum wall thickness
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$mw = 2;
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$nc = 6;
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$nr = 4;
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@m_cw = &a2m(1);
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@m_ccw = &a2m(-1);
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# vial hole radius
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$vr = $vd/2;
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# circle radii: first, last, increment
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$r0 = $r/2;
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$r1 = $vr-$r*0.75;
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$rs = $r*0.75;
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#
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# x offset at which the vial bay stops
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#
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$t = $ys/2-$mw/2;
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$xo = sqrt($vr*$vr-$t*$t);
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#
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# radius of the arcs connecting vial bays
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#
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$br = $vr*($mw/2)/$t;
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# x offset of the center of the arcs connecting vial bays
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#
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#$bx = $xo+sqrt($br*$br-($mw/2)*($mw/2));
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$bx = $xo+$xo*($mw/2)/$vr;
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print STDERR "t = $t\n";
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print STDERR "xo = $xo\n";
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print STDERR "br = $br\n";
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print STDERR "bx = $bx\n";
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# adjust the z step
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$nz = POSIX::ceil(($z0-$zf)/$zs);
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$zs = ($z0-$zf)/$nz;
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print STDERR "nz = $nz\n";
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print STDERR "zs = $zs\n";
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print STDERR "r0 = $r0\n";
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print STDERR "r1 = $r1\n";
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print STDERR "rs = $rs\n";
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sub do_col
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{
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local ($x0) = @_;
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local ($rw, $end);
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for ($rw = 0; $rw != $nr; $rw++) {
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if ($rw) {
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$end = $rw == $nr-1 ? $vr : ($ys-$mw)/2;
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&yarc($x0-$bx, $y0-$ys/2,
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1, -$mw/2, $mw/2, $br, @m_ccw);
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&yarc($x0, $y0,
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-1, -($ys-$mw)/2, $end, $vr, @m_cw);
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} else {
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&yarc($x0, $y0,
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1, -$vr, ($ys-$mw)/2, $vr, @m_cw);
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}
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$y0 += $ys;
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}
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for ($rw = 0; $rw != $nr; $rw++) {
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$y0 -= $ys;
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if ($rw) {
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$end = $rw == $nr-1 ? $vr : ($ys-$mw)/2;
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&yarc($x0+$bx, $y0+$ys/2,
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-1, $mw/2, -$mw/2, $br, @m_ccw);
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&yarc($x0, $y0,
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1, ($ys-$mw)/2, -$end, $vr, @m_cw);
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} else {
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&yarc($x0, $y0,
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1, $vr, -($ys-$mw)/2, $vr, @m_cw);
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}
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}
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}
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sub do_cols
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{
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local ($c, $x);
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$x = $x0;
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for ($c = 0; $c != $nc; $c++) {
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&do_col($x);
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$x += $xs;
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print "\n";
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}
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}
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sub do_circles
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{
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local ($c, $rw, $x, $y);
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local ($rr);
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$x = $x0;
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for ($c = 0; $c != $nc; $c++) {
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$y = $y0;
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for ($rw = 0; $rw != $nr; $rw++) {
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for ($rr = $r0; $rr <= $r1; $rr += $rs) {
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&circ($x, $y, $rr, 180);
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}
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$y += $ys;
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}
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$x += $xs;
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print "\n";
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}
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}
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($x0, $y0) = (5+$ys/2, 5+$ys/2);
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$z = $z0;
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for ($i = 0; $i != $nz; $i++) {
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print "#%%r_tool=", $r, "\n";
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&do_cols;
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print "#%%r_tool=0\n";
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&do_circles;
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$z -= $zs;
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}
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