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mirror of git://projects.qi-hardware.com/wernermisc.git synced 2024-11-14 19:33:44 +02:00

m1/button/: milling process for making M1 buttons from a piece of wood

This commit is contained in:
Werner Almesberger 2011-10-03 17:53:50 -03:00
parent 113fc5c25b
commit 70e88c5651
3 changed files with 75 additions and 0 deletions

14
m1/button/Makefile Normal file
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SPOOL=/home/moko/svn.openmoko.org/developers/werner/cncmap/spool/spool
out.gp: bgen
./bgen >out.gp || { rm -f out.gp; exit 1; }
out.rml: out.gp
PATH=$PATH:/home/qi/cae-tools/gp2rml gp2rml 10 1 1 <$< >$@ || \
{ rm -f $@; exit 1; }
spool: out.rml
PORT=/dev/ttyUSB0 $(SPOOL) out.rml
clean:
rm -f out.gp out.rml

18
m1/button/NOTES Normal file
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Nominal dimensions:
pusher 1.1 mm x 12 mm
shaft 3.7 mm x 8 mm
Adjusted dimensions for the first try:
1.2 mm, 3.8 mm = 5 mm
Piece thickness:
7.9 mm
Final size:
pusher ~0.8 mm x 10 mm
http://downloads.qi-hardware.com/people/werner/tmp/m1butwood.jpg

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m1/button/bgen Executable file
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#!/usr/bin/perl
$pi = atan2(1, 1)*4;
sub circ
{
local ($r, $d) = @_;
for ($a = 0; $a <= 2*$pi; $a += 2*$pi/200) {
print $x0+$r*sin($a), " ", $y0+$r*cos($a), " ", $z0-$d, "\n";
}
print "\n";
}
$x0 = 123;
$y0 = 19+18;
$z0 = -39.5; # piece surface
$z0 -= 7.9-5; # depth into piece
$ds = 7.8; # shaft diameter
$dp = 10; # pusher plate diameter
$tr = 25.4/8/2;
#&circ($ds/2-$tr, 0);
&circ(1, 0);
&circ(3, 0);
&circ(0.2, 0);
&circ($ds/2+$tr, 0);
&circ($ds/2+$tr, 2);
#&circ($ds/2+$tr, 3.8);
#&circ($ds/2+$tr, 3.8); # twice, for cleaner cuts
&circ($ds/2+$tr, 3.9);
&circ($ds/2+$tr, 4.0); # twice, for cleaner cuts
&circ($dp/2+$tr, 0);
&circ($dp/2+$tr, 3);
&circ($dp/2+$tr, 5+0.3);