Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: belin on October 12, 2012, 04:16:40 AM
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its me again....LOL
ok i got this machine operating great...but not completely under my control just yet....
the UNITS and MEASUREMENTS are creating me headaches..but thats for another day
ok picture this if you will
a small TROPHY ENGRAVING PLATE...70mmx17mm....anondised aluminuim...
ok so i place that plate on the cnc bed...thats no problem....
my problem is
CENTERING THE G CODE FILE so it fits exactly within the bounderies of the Trophy Plate
here is a 3 line example...
MELBOURNE FOOTBALL CLUB
BEST & FAIREST 2012
TOM JONES
so now,,,how do i tell the cnc machine to engrave this CENTRAL onto the Trophy Plate...
i know now how to jog to a certain position and reset the axis to zero....but i guess i need to know exactly what point the first mark of engraving is to occur so as to be able to set the placement on the trophy plate
hmmmmm am i making any sense here or just going around in circles
either way....can anyone offer some advice
much appreciated
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Hi Belin,
I am perhaps bit of an oddball in the way I do things but I set-up the CAD/CAM engraving work with the X and Y zero's (datum) at the centre of the work.
It is easy enough to locate the centre of the first blank by pencil drawing corner to corner diagonals, the blank is then located on a vacuum table in a corner jig and the centre located by a small laser cross-hair. The Mach3 DRO's are then zeroed and engraving then begins, replacing the finished work with a new blank in the jig, the batch is then completed.
There are many threads here on the forum which discuss various methods and a search should reveal the details but, if it's any help, there is a description of what I have done here http://www.cooperman.talktalk.net/files/17.htm
Tweakie.
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Your a genius TWEAKIE...but we will keep that quiet...
by constantly playing around with Jogging and Resetting the axis
I HAD A WIN....
my problem was that i had the TABLE SIZE LIMITS in Homing/Limits set to large...like for the full table size which would be ok if your doing a job of that size
but if your job is only a small percentage of the table size....it makes it difficult to actually VIEW your job on the screens....
so all i did was reset the table size to ")" and BONGO..
i can see the project clearly and simply by jogging and resetting axis.....well IT WORKS....
Take a Bow Twealie
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;D ;D
Tweakie.