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Re: water jet cam

 

Hi Les,

Thanks for the info. I have a little project that requires MACH2/3 to
engrave a serial # onto a PCB board. The system will work as follows:

MACH moves table to the first circuit board on a panel and asserts an output
and then waits for one of a couple of inputs. The output triggers the
programmer to program the PIC micro-controller.

If programming was successful, the OK line is asserted and MACH moves the Z
axis down and up to have a rod push the button on the board for testing. It
then again waits for the OK line or NOTOK line.

When OK happens it calls a subroutine file that has been created by the
programmer code. This is a concatenation of G-Code files each containing
one letter or number. (0..9, A..F). The programmer just creates the serial
# file which is read in by MACH which knows where on the board to engrave
the serial #s.

Now for everything except the engraving I could have written a simple
program to just do the positioning and programming. MACH is kind of
overkill for this application. But engraving letters by sending G-Codes
seemed to be the easy way.

So my question is, can SheetCAM create letters from a DXF file where the
tool is an engraving bit and the tool path is the centre of the letter. I
need speed here. I currently use a hand held vibratory engraver and can
whip out 12 sets of two digit serial #s very quickly and the numbers are
quite legible. I don't want the G-Code to follow the outline of a letter.

Does this make sense?

John Dammeyer



Wireless CAN with the CANRF module now available.

Automation Artisans Inc.
Ph. 1 250 544 4950

-----Original Message-----
From: CAD_CAM_EDM_DRO@...
[mailto:CAD_CAM_EDM_DRO@...] On Behalf Of Les Newell
Sent: Friday, September 01, 2006 8:34 AM
To: CAD_CAM_EDM_DRO@...
Subject: Re: [CAD_CAM_EDM_DRO] Re: water jet cam


Hi John,

SheetCam is a CAM package so it takes your drawing, works out the
toolpaths, cut order etc then generates G-code for Mach to cut.

For instance say you draw a 1" square. You could load that
drawing into
Mach and cut it but Mach would follow the lines exactly so the part
would come out undersized by the cutter diameter. SheetCam
knows about
this so it would increase the size of the square to allow for
the cutter
diameter. Your part would now come out exactly to size.

Les


John Dammeyer wrote:
I See from the web site that the registration tab can
include MACH2. So why
would someone need sheetcam if they have MACH2/3?

John Dammeyer

Subject: Re: [CAD_CAM_EDM_DRO] Re: water jet cam


SheetCam <www.sheetcam.com> can do this at a much lower
price. I can
write a post processor for you that will slow down to a preset
percentage of the normal feed rate on arcs. The post could even be
configured to slow down more for tighter arcs.

Les

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