Use G53, not G28, to Cut Cycle Times and Position Your Lathe Turret – Haas Automation Tip of the Day

Are you using a G28 command to send your machine or tools to home position? In this Tip-of-the-Day, Mark demonstrates how using a G53 command instead not only saves valuable cycle time, but also reduces the risk of crashing your machine. Mark walks you through both G-codes, and explains how and when to use each one. Anyone who programs or operates a machine should watch this video!

Stay tuned for the lathe version of this Tip-of-the-Day - coming soon!

If you enjoyed this video, please hit the like button and share it with a friend who’ll find it helpful . . . and thanks!

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[jamilrahman]

i am a cnc operator at giki and this tip is very usefull for me thanks

[ramonfranco]

Congratulations to all the Hass 's Team and specially to Mark.
Great videos. It's the only brand that has that desire of make the things better for everbody

[CalvinEdmonson]

I find myself watching and learning from these videos even though our shop has no Haas equipment.

[jays]

I have been using just a g28 on my sty lathe for years now. If you don't put any x, y, z or other axis it homes everything out. I have never had it rapid to g54 work offset. That being said I may change to g53 but I find g28 is a simpler code. I'm also running the st10y so it's a small machine and I usually need it to go home for a tool change.

[joeylikewise]

I like tool change on the fly it’s faster yet. Auto loader is tricky but can be precision for those that know.

[sachie]

i used to Program each tool to an individual sweet spot( not a Haas)....will give this a try on MONDAY...thanks.

[CouncilofThirteen]

Great tutorial guys. You are almost the ones who make top-notch videos about cnc programming both in terms of content and source quality. Props to Mark too!

BTW What about "hockey stick" motion?

[Crank]

Im often programming it manuelly G00 X120 Z30, or as you said G28 U0W0, but ill try the G53 today :) Ty for the Video !

[sirmonk]

Could you do video on how to use end mills, particularly ball end mills, in a standard 2 axis cnc lathe(no live tooling). I've only been machining for a year, and where I'm at doesn't offer much help figuring out how to do these kinda things. Some tips here would be very helpful and appreciated. We run different kinds of stainless.

[djaberkharoubi]

Very useful tips, thankyou very much :)

[yefryramirez]

thank you very much, saludos desde colombia

[benjaminway]

I usually get the tool clear of the part after each operation and then call up M98 P? (1 for main and 2 for sub) with G53 for whatever axis for safe index.

[yishsaur]

Oh... Thanks for the tip. I will use G28 G00 X0 Z0 for every tool change now.

[tbirdpimp]

Very informative im not a big haas fan but you did a great job of explaining does this apply to mill table positioning im getting tired of rapiding my table back to me

[TeamXternaL]

Mazak lathes by default, use the longest tool +5mm from the workpiece to change to tool.

[MakeSomethingCNC]

Hey Mark. I currently run a 1980 nori seiki SL-1 LATHE. I use G28 to send my turret home to do a tool change. I'm not sure if my yasnac2000g control has G53. Anyways my normal line of code would be
G00 T01
G50 Z4.0 X 6.125 is my tool offset from home origin to part 0.
Then in my code if I put a G00 x0z0 it will be at part zero. So how would I send my turret back to a safe tool change position? I have to run that tool then G28 which is a slow process then I have to have a g50 x0y0 to cancel out that last tool then do a T02 and then G50 X...Z.... for that tools offset. Unlike newer CNCs tgat have a tool offset page which I do not. My tools are offset by the Gcode commands in the program.

[jerojr]

If you don’t want the spindle to come to a complete stop when you do a tool change how do you do that?

[fishsticks]

I use different variables based off of what my tool length is and the tool position

[norwegianmachinist]

What about the G29 command then? I's very poorly described in the lathe manual, but I have seen some notes on forums of it being used in conjunction with a certain coordinate system and/or G28 to actually set a tool change position. This makes more sense to me as i often have to change the tool change pos in the same program. This has lead to me just using a safe tool change pos in G53 very far away, since G28 can crash some of my longer tools in the roof of the machine.
I have a DS-30SSY btw. Great machine :D

[hectorherrera]

will this work for a haas hl-2 from 1997 thnks, and also which should i use.
G53 G00 X0.0 Z0.0 OR
G53 G00 X-5.
G53 G00 Z-7.
thanks