Gcode Preheat - Revision history

Aidan Williamson: category: torch table

2014-06-13T15:31:27Z

category: torch table

← Older revision		Revision as of 15:31, 13 June 2014
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			{{Template:Category=Torch Table}}
	=CNC Torch Table File Adapter=		=CNC Torch Table File Adapter=

ChuckH: /* CNC Torch Table File Adapter */

2012-10-15T07:28:46Z

CNC Torch Table File Adapter

← Older revision		Revision as of 07:28, 15 October 2012
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	To address the proper piercing issue, [[Vann Miller]] has written a correction script. This script does 3 things. First, it takes out the z values generated by the [[DXF to G-code Converter]] (not needed in a 2-axis motion system at hand). Second, it starts a pierce by moving towards the center of a hole. Third, it rotates the torch around a small radius (.05") during preheating. The number of rotations is currently 8, but '''one should be able to modify this'''.		To address the proper piercing issue, [[Vann Miller]] has written a correction script. This script does 3 things. First, it takes out the z values generated by the [[DXF to G-code Converter]] (not needed in a 2-axis motion system at hand). Second, it starts a pierce by moving towards the center of a hole. Third, it rotates the torch around a small radius (.05") during preheating. The number of rotations is currently 8, but '''one should be able to modify this'''.

	To run this correction script, download the coverter file - make it executable, and run it from command line. Here's Version 0.22 of vanngcode.php - [http://openpario.~~mime.oregonstate.edu~~/documents/1236] . This works based on correct understanding of G2 syntax. It also ignores arcs, and only pierces circles on their interior.		To run this correction script, download the coverter file - make it executable, and run it from command line. Here's Version 0.22 of vanngcode.php - [http://www.openpario.net/documents/1236] . This works based on correct understanding of G2 syntax. It also ignores arcs, and only pierces circles on their interior.

	php vanngcode.php <file.ngc>		php vanngcode.php <file.ngc>

YK: Created page with "=CNC Torch Table File Adapter= The gcode files from the dxf2gcode toolchain alone will not be effective for the torch table To address the proper piercing issue, [[Vann Miller]..."

2012-08-20T22:33:33Z

Created page with "=CNC Torch Table File Adapter= The gcode files from the dxf2gcode toolchain alone will not be effective for the torch table To address the proper piercing issue, [[Vann Miller]..."

New page

=CNC Torch Table File Adapter=

The gcode files from the dxf2gcode toolchain alone will not be effective for the torch table

To address the proper piercing issue, [[Vann Miller]] has written a correction script. This script does 3 things. First, it takes out the z values generated by the [[DXF to G-code Converter]] (not needed in a 2-axis motion system at hand). Second, it starts a pierce by moving towards the center of a hole. Third, it rotates the torch around a small radius (.05") during preheating. The number of rotations is currently 8, but '''one should be able to modify this'''.

To run this correction script, download the coverter file - make it executable, and run it from command line. Here's Version 0.22 of vanngcode.php - [http://openpario.mime.oregonstate.edu/documents/1236] . This works based on correct understanding of G2 syntax. It also ignores arcs, and only pierces circles on their interior.

php vanngcode.php <file.ngc>

Where <file.ngc> is the name of the ngc file. The converter will eliminate Z coords and add preheating/piercing to circles.

Also, now the interior offset can be set via the command line, e.g:

php vanngcode.php input.ngc 0.3

... would offset 0.3 inches into the circle before piercing. The default offset is .2 in inch units. For small holes, such as 1/4", the value should be decreased to 0.1, which will pierce just about in the middle.