I need to review

[MBG]

I have bene out of machining for a while now. I need to review the controls before I start my new employment.

MDI
JOG - I know what this one is

What is MDI

What are the other ones?

[toastydeath]

You're in deep trouble if you forgot what MDI does and start a new job soon.

[MBG]

Originally Posted by toastydeath You're in deep trouble if you forgot what MDI does and start a new job soon.

well I am not programming. I am operating/setup. Mostly I told the employeer I have been out for a while.


I know how to set zeros in job and run the program in auto. I never really used MDI that often..

[Maia]

I'm not sure exactly what the letters stand for, but I know what the control does. In MDI mode you can type a program, usually short, into the control and run it.

[ger21]

I think it stands for Manual Data Input. It lets you type and run individual lines of code

[Diggs]

left to right on a fanuc (at least the one Im on now)
Edit
Auto
MDI
Handwheel (MPG manual pulse generator handwheel)
Jog
Rapid
Home

Hope I didn't forget any.

Don't forget your single block button and M01(option stop) buttons...they have been one of the everyday buttons wherever I have worked..it will all come back to you in a couple days.
It's like riding a bike or having sex

[Jarwalcot]

http://www.cncci.com/resources/artic...C%20basics.htm

[sinha_nsit]

If your job involves running the programs supplied by others, you will never need to use MDI mode. MDI mode is used for executing small programs, for which ready-made programs are not available. For example, you may need to do just a single pass facing operation on a job. For this, you only have to bring the tool to appropriate Z level and then give linear interpolation (G01) command in, say, x-direction up to required distance. This is hardly a 4-5 line program which you can easily type on the machine in MDI mode and then run it. I am not sure, but I think, a program written in the MDI mode cannot be saved for future use. Let somebody give more information on it.

I have one more confusion. Can we write a program in EDIT mode and then run it in MDI mode?

[toastydeath]

Originally Posted by sinha_nsit I have one more confusion. Can we write a program in EDIT mode and then run it in MDI mode?

No, that would be somewhat ridiculous.

A combination of single block, block delete, M01 and M00 will get you through a program a lot more flexibly than any sort of MDI can.

MDI is best for things that are not actually important to a part. As soon as you venture into "Okay, this cut is important in some way to the finish product," start a new program. Cut it up with plentiful N lines to quickly jump to the part of the program you want to run, and make liberal use of M00, M01, and M30. Works much better than MDI.

[Paulo E.]

Wow this is trully sad.... Not to come down on on the guy but damn man having been on the industry and you say you forgot what MDI does ???
Im sorry but I dont buy it. Anyways it does stand for "Manual Data Input" and as some guys outline it is used for short code for example when you want to turn on the spindle or when you want to bring the machine to the zero position of the part. Either way if you are going to be doing set ups I strongly recomend that you familiarize yourself with the codes.

One more thing. Yes you can write a full fledge program in MDI and while that would be insane, there are controls like Haas that actually save the program on MDI till you delete it.

Good Luck.

[harpman28]

Just to add on to the last post, the haas control allows you to add an Onnn (nnn being a program number), to any program written in MDI. This then saves it as a regular program in you program list. I mostly use the mdi for turning the spindle on, and moving to specific locations as well. In addtion, when running through even my own programs for the first time I always slow the rapids way down, watch my "distance to go" read out and usually single block and/or optional stop. Good luck and always keep your hand near the feed hold!

Davin

Haste makes waste.

[davisboys]

MDI enables the user to do a lot of useful actions which may be more time consuming and less accurate than a manual move. Tool changing, moving to a specific location, and it may be faster to send an axis home with a G28 G91 command especially during setup and proveout.