Haas subplate grid shift

[kccadcam]

We are building common grid plates on our Haas's (VF2, VF3, VF3YT, VF6)

Our own design similar to Stevens plates.

We want a central "zero" dial hole that will be the same on every machine.

Can a Haas be grid shifted to that zero?

Not sure what would be the best route.

We want to program to local part zero in Mastercam with G10's in the header of the program that shift from "zero" of subplate to part zero.

Also want to allow machinist to shift x or y in small incremental amounts without overwriting G10's.. does this make sense??

Can a Haas be grid shifted like a Fanuc? (internal parameters??)

[mkd]

just G92 off the center hole.

 

it can bite you because it disappears at times (depending on control revision).

might need a 9000 program stored in individual machines. Run program every morning to ensure g92 is there and correct.

 

it's one way..

 

g52 might be another

[mkd]

We want to program to local part zero in Mastercam with G10's in the header of the program that shift from "zero" of subplate to part zero.

if you have the machine home as your origin, there are small adlustments that can be made off of limit switches, in parameters like you are thinking. (edit: so doing this method with all similar size machines will get them calibrated the same, based on your plate design)

doing it this way would allow you to use G92 to make your small adjustments from your G10. talk to your applications or service dept about the Par. change.

[crazy^millman]

What are you going to use to protect the holes? One of the cheapest solution's I have ever seen is a penny. Do a counter bore over the top of the tapped hole or dowel hole that will allow a penny to fit. When you need to hole you take a screw driver and hammer and remove the penny. Far cheaper than any other solution out there. Threaded plugs costing $.25 cannot compete to a penny. I have seen people spend a few hundred dollars on plugs and for 100 holes it would cost you $1 to protect them all. See if Dogerfan and shoot you a picture of one of the tables that was were I first saw it done and I have recommend it to everyone since then.

[Joe788]

We are building common grid plates on our Haas's (VF2, VF3, VF3YT, VF6)

Our own design similar to Stevens plates.

We want a central "zero" dial hole that will be the same on every machine.

Can a Haas be grid shifted to that zero?

Not sure what would be the best route.

We want to program to local part zero in Mastercam with G10's in the header of the program that shift from "zero" of subplate to part zero.

Also want to allow machinist to shift x or y in small incremental amounts without overwriting G10's.. does this make sense??

Can a Haas be grid shifted like a Fanuc? (internal parameters??)

 

Kevin, one way to accomplish this:

 

Create a program number O9555(or whatever) on all the Haases, that G10s the center location of your sub plate (the numbers will be different on every machine, of course, but the program number is the same). Then you just have the post call that sub program, and then G10 shift each offset incrementally.

 

So your post would spit out:

 

M98P9555 (PLATE ORIGIN LOAD)

G91G10L2P1X-15.Y3.Z6.25

G91G20L2P2X-8.5Y3.Z6.25

etc

etc

 

Then you can post and go for any machine.

 

This is the way we do it on horizontals.

[THEE THAINZ™]

Kevin,

This sounds very similar to the sub plate in the HAAS that I have. There is a Steven's plate 1/2 x13 threaded pattern with an off set ball lock pattern also built into the table. Do you have the expanded offsets with your HAAS or just use the standard G53-59. With a gridded pattern you could assign permanent offset values to each fixture as long as you have a legend telling where the fixture is to be placed. If you have a probe run a verify program when placed. G52's can be used to do shifts after that if you have that option activated. Just make sure that you call them up and cancel them as it can bite you if you don't.