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Author Topic: Why not G54 instead of G52 for multiple parts?  (Read 3346 times)

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Why not G54 instead of G52 for multiple parts?
« on: January 04, 2010, 01:00:08 AM »
I am about to start my first job which will have 4 identical parts on a single sheet of material.  Each part has 5 tool changes.

I have been reading up on G54/G52 and it is recommended that I use G52, because G54-G59 is for fixtures.

However, I use a CAM program (Cut2D) and dont really want to edit the GCode. I'd just like to run the GCode, then goto the offsets (G54-G59) page for the next part, and run the program for that part, then repeat for each part.

Will this work for me?

Offline josh

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Re: Why not G54 instead of G52 for multiple parts?
« Reply #1 on: January 04, 2010, 01:46:14 AM »
I would think using G52 would be easier when you are cutting  a sheet thats just because you give it the next position where you want to start your part and once you use G52 that sets your knew origin its like using it in incremental .
I also dont see why you just cant use your fixture offset method as long as you know that there is enough room to cut your part, just when doing your next  part use G55, then use G56 and so on,
Re: Why not G54 instead of G52 for multiple parts?
« Reply #2 on: January 04, 2010, 12:05:57 PM »
If you know the part offsets in advance, it's probably easier to hard-code them into the program using G62/G92.  If not, then it's probably easier to setup fixtures manually with G54-G59, and not have to modify the code for each run.  But, either will get the job done.

Regards,
Ray L.
Regards,
Ray L.
Re: Why not G54 instead of G52 for multiple parts?
« Reply #3 on: January 04, 2010, 12:13:00 PM »
Maybe I am missing some thing but why wouldn't you set that up in Cut2D.  One cut file for each differenct bit that cuts all the parts.  You would run each of the five files once.  Change bits in between.
Re: Why not G54 instead of G52 for multiple parts?
« Reply #4 on: January 06, 2010, 04:23:09 PM »
I created a Work Offset Program that reads in your G code and creates as many Work Offsets as you select while limiting the number of tools changes for each offset.

http://www.machsupport.com/forum/index.php/topic,6129.msg89737.html#msg89737

Hope this helps,
JH