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57b4e276e5
- ops.h, ops.c (optimize_paths): reorder toolpaths to reduce the distance between them - lang.l, lang.y: added command "optimize" - README: documented "optimize" |
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.. | ||
cameo.c | ||
COPYING.GPLv2 | ||
excellon.c | ||
excellon.h | ||
gerber.c | ||
gerber.h | ||
gnuplot.c | ||
gnuplot.h | ||
lang.l | ||
lang.y | ||
Makefile | ||
ops.c | ||
ops.h | ||
path.c | ||
path.h | ||
README | ||
shape.c | ||
shape.h | ||
util.h |
CAM Engineering and Operation ============================= Cameo is a collection of CAM tools that convert between various file formats and adapt the toolpath. This is a work in progress. The plan is to integrate all the utilities currently floating around in http://svn.openmoko.org/developers/werner/cncmap/ into a single program and to better share common functionality. This work is distributed under the terms of the GNU GENERAL PUBLIC LICENSE, Version 2: This program 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 2 of the License, or (at your option) any later version. For your convenience, a copy of the complete license has been included in the file COPYING.GPLv2. Toolpath adaptation language ---------------------------- Loading paths: gerber <diameter> [<filename>] gnuplot <diameter> [<filename>] excellon [<filename>] clear "gerber", "gnuplot", and "excellon" each add paths from a file to the list of paths already loaded. "clear" removes all paths. If the a file name is omitted, standard input is read. The diameter is the default tool diameter. Note that "clear" preserves the translation set with "align", "array", and "translate". This way, multiple files can be processed with the same translation. File output: write [<filename>] append [<filenname>] Writes all loaded paths in gnuplot format to the specified file. If the file name is omitted, "write" writes to standard output. "append" is like "write", except that it appends to an existing file. File names can contain spaces and any printable characters, but no leading or trailing spaces. It is not possible to place a comment after a file name or at a place where a file name could be. E.g., write foo.gp # wrong but write foo.gp # right Units: mm mil <number>mm <number>mil The words "mm" and "mil" set the input to the specified unit. The default unit is millimeter. If a number is followed by "mm" or "mil" without intervening space, the unit is overridden for this number, without affecting the default input unit. Note that "mm" and "mil" only affect dimensions in the command file and have no effect on the interpretation of toolpath files. Horizontal adjustments: align <ref> <x> <y> align <ref> <x0> <y0> <x1> <y1> array <x-step> <y-step> <x-index> <y-index> translate <x> <y> reset "translate" shifts the currently loaded paths by the specified distance. "align" is a more sophisticated form of "translate", which moves a reference point in the bounding box of the currently loaded paths either to a specified location (if used with three arguments) or to the respective point in a rectangle (if used with five arguments). The reference point is specified with a number as follows: 7-----8-----9 | | 4 5 6 | | 1-----2-----3 "1" is the lower left corner, "5" is the center, and so on. "array" is used when cutting several copies of the same piece. The first two arguments define the step between pieces while the second two arguments define how many steps in each direction are taken. "align" sets moves the toolpath to an absolute position while "array" and "translate" move relative to the current position. The total translation is remembered also across "clean", so that an alignment can be applied to multiple toolpaths. "reset" sets the translation to zero. The way "reset" is currently implemented, it does not affect the currently loaded toolpath. (But it's better to use it only with "clean".) Vertical adjustment: z [<z0>] <z0-pos> Tool compensation: offset [dog] [inside] "offset" offsets the toolpaths by the tool radius. By default, it offsets the outermost toolpath to the outside and all other toolpaths to the inside. This can be overridden with the #%outside directive in a gnuplot file or the "inside" option to "offset". "inside" has precedence over "#%outside". Concave corners on an outside path are normally cut such that the corner is round, leaving material at and near the corner point. The option "dog" changes this to cutting a "dogbone" hole such that material is also removed up to the corner point. Drill/mill conversion: drill <min-diameter> <max-diameter> mill <diameter> <step> remainder empty "drill" and "mill" search for paths that can be processed with the specified tool and generate the corresponding toolpaths. After "drill" or "mill", only the toolpaths for this tool remain. The paths that have been converted are removed and the paths for which the tool is unsuitable are moved to a separate list, the remainder list. "remainder" clears the list of paths and sets the list of paths to the remainder list. Note that "clear" does not affect the remainder list. "empty" does nothing if the list of paths is empty and makes cameo exit with an error if there are paths in the list. This can be used to ensure that all paths in a file have been converted. Example: excellon example.drl drill 7mil 13mil write drill.gp remainder mill 0.8mm 0.01mm write mill.gp remainder empty In this example, we first load a drill file. Then we generate drill commands for all simple holes with a diameter between 7 mil and 13 mil and write the toolpaths to the file "drill.gp". Next, we retrieve the remaining paths, generate toolpaths for a 0.8 mm endmill, and write them to the file "mill.gp". Finally, we check that all paths have been processed. Tool path optimization: optimize Try to reduce the movements made between paths by reordering the paths. Note that this disturbs the order generated by "offset" and should thus not be used on paths that to be executed in a specific sequence.