How Canned Cycles Work with G98 & G99 - Haas Automation Tip of the Day 

Yes. They helps a lot. Keep coming these videos

Bow Tie Bandit - Thanks. Much appreciated. The videos are a lot of fun to make! - Mark, Haas Tip-of-the-day

Jeffrey Thompson nice video

Keith Hansen I didn't know that about the R-plane either. Great mini tip there

The mentality of non CNC guys is usually-press the green button and walk away

FredFlinstone21 - Those are some great tricks. I love it. Sounds like a good video topic. Thanks for posting. If you have any more suggestions like that, send them to us at TOD@Haascnc.com - Mark, Haas Tip of the day

Thanks Marysol. We’ve made a big effort, here at Haas, to translate our videos recently, as well.

Shubham Nishad - Thanks for the comment. That Bonus Content link at the end of the video should be working now for you. diy.haascnc.com/bonus-content-episode-18-canned-cycles-g98g99-pdf Thanks. - Mark, Haas Tip-of-the-day

Sue C, You're welcome! And we're glad this TOD video was helpful. Thanks for the comments!

+Dunn -Ng We will typically run the program in GRAPHICS first (press the GRAPH key), and then SINGLE BLOCK through the program (take a look at our SINGLE BLOCK video for more info on this: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-R8yIf8eQHvE.html). Personally, I always search for my Z depths (press Z, then the down arrow), and verify my Z Starting Positions, R planes, and Z depths for my canned cycles before running a hand-written program.

+Troy Gossett Troy - When we call a G99 in our program, it is going to stay in effect until a G98 is called (Modal). The G99 is not cancelled when the canned cycle ends with a G80. Your G98/G99 will stay in effect even after the program ends with an M30 unless Setting 56 M30 RESTORE DEFAULT G is set to ON. Adding a G98 to our Safe Startup Line, which runs before each operation, is a really good idea. You can take a look at our full program by clicking on the Bonus Content link at the end of the video. In our case we just switch back to a G98 at the end of the cycle. Thanks for bringing this up, it was worth mentioning. - Mark

your question was very helpful for me I've used G99 with every tool, I've added G99 4 times in a program but now my concept is clear about G99 command, my only problem is that if I use this command one time a day it remains in effect for whole day whether I use any program until I restart machine, I've 151 programs and sometime I use more than 4 programs in a day and I forget that in a previous program I've commanded G99 so I'm still in a circle of risk, I've to be extremely careful with first cycle of every program but is there any way to avoid any crash? if I use G99 command with a program it shouldn't come in action with any second program, sometime there are more than 4 clamps between holes and it should up to me whether I use this command or not (sorry for my weak English)

+Umair Mohammad - Just remember when ever you use G99 it is like turning a switch on, it stays on until you turn it back off with G98. So your code will need to end with G98 before the next operation.

+Umair Mohammad In your case, it might be good to turn on Setting 56 M30 RESTORE DEFAULT G. This will reset all of the G-codes to their default values every time an M30 is reached - just like the machine had just been turned on. This would return the machine to G98 every time an M30 was reached. Hope this helps!

The CM-1 www.haascnc.com/Vertical-Mills/Compact/product-detail.asp?id=CM-1&webID=COMPACT_MILL_VMC#gsc.tab=0 would be the best machine for micromachining, but the DT-1 www.haascnc.com/Vertical-Mills/Drill-Tap-Mill/product-detail.asp?id=DT-1&webID=DRILL_TAP_VMC#gsc.tab=0 has more room and faster rapids and comparable spindle speeds.

Here is a link for you ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NutStjpWJck.html - Mark, Haas Tip-of-the-day

On Haas machines we allow more than one G-Code on the same line, but only one from each G-Code group. Check out this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-iMx_UYrvuos.html . Hope this helps. - Mark, Haas Tip-of-the-day