Simplify 3+2 and 5-Axis Machining with DWO/TCPC – Haas Automation Tip of the Day

On today’s Tip of the Day, Mark shows how the Haas DWO/TCPC option can greatly simplify 3+2, 4+1, or simultaneous 4- and 5-axis jobs. By using DWO/TCPC (Dynamic Work Offsets / Tool Center Point Control), you can now create your CAM program ahead of time, and then place the workholding and part anywhere on the table, with no need to repost your program! If you’ve ever been frustrated by having to repost your program every time you set up the job, this video is for you.

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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[rushyahr]

Mark is excellent, i still love these videos

[ericjacobsen]

Great video work showing both vises at the same time (at @3:35).

[ScottMoyse]

this is the best video I've seen to explain TCP. thanks.

[intagliode]

Thats awesome. Nice to see the control doing the work instead of cam.

[gtrsGuy]

The best explanation about TCPC, thank you.

[mattkedz]

Looks fantastic. Might get a UMC 750. Can't wait.

[KennyMustSurvive]

its like TCPM in Heidenhain TNC: M128 (5x) and G80 (3+2)

[witkowskiarkadiusz]

It's very good film, but I have a question. Can I use G2/G3 during TCPM/DWO? In Heidenhain I have problem which circuit interpretation (G2/G3) and symultiniction machining.
Thank you very much. 👍

[antares]

hello Tool Center Point Control is same thing that RTCP (Rotation Tool Center Point) ?

[marknouj]

Are there any plans to allow for cutter comp while using TCPC?

[danarrington]

If you've never been exposed to true 5 axis machining this might not make much sense. Before we had TCPC if you needed to do 5 axis simultaneous machining you had to
rely entirely on your CAM system. You would have to describe the full kinematics of your machine including the XYZ location of the center of the rotary axes. Then, one way or
another, you would tell the CAM system where X0Y0Z0 on your part was relative to the centerline of the rotary axes. The CAM system would crunch all the numbers and spit out
a program for you. The only problem was, if you needed to make fine adjustments to the part, you had to go back to the CAM system, make the changes there and post out a new
program. It worked but it was clunky. The logic behind TCPC is that your program can now simply describe the tool motion as if the part were completely stationary AND the center
of rotation is always at the tip of the tool. Effectively taking all considerations for machine kinematics away from the CAM system and giving that responsibility to the CNC control.
Now it doesn't matter if your fixture is a few thousandths off center. The CNC control will automatically adjust for that while it processes the program in real time to create the machine
motion. All you have to do is make the corresponding shift in your work offset and the control does the rest. Every major CNC control has this capability now and it may even come
as a shock to you that they all work exactly the same way. They all use the exact same math and they all call it "TCP". If you only do 3+1 or 3+2 machining you'll never use this.
Haas DWO on the other hand needs some work. What it can do, it does well but the problem is that it's really only good for demonstrations. That's because in the real world NOTHING
is ever perfect. Say you are machining a hole on the side of your part that has a very small true position tolerance. You run through your setup part and during inspection you notice
that this hole is out of position by .0015". There is no easy way to make this adjustment on a Haas. What you really need is a fine adjustment calculation that runs AFTER the G254
has calculated the new coordinates. I have a macro that I developed 20 years ago that can do everything G254 does plus it lets me make those adjustments very easily. If I can do that
there's no reason why Haas Automation can't do something similar or even better than that. If you constantly make parts that have tolerances tighter than .005" you know what I'm sayin'

[michaelpellegrim]

I see plenty of TCPC videos. Are there any going over the G268/G269 feature coordinate system? This basically allows all CS's to be non-centerline of rotation driven. Why is no one using this? It makes all Z planes easier to follow by a setup tech. Am I missing somethig?

[cnc-ua]

Awesome. Demo is the most beautiful thing to get used to it

[henmich]

Will this work on any of the CHC controllers?

[creativetechnologies]

Classic control dyinamic work offset how to set up...? One video link

[ipadize]

i work on machines with Heidenhain controllers which also use TCP but they also use PLANE function to move the workoffset but dont rotate them in space, how do all the other machines do that?

[ScottMoyse]

Hi Mark, in this video you don't show the use of DWO (G254) but you mention it a couple of times. According to the documentation it looks as though you can only use G234 OR G254, so you can't use them at the same time. Could you use TCPC for positional machining instead of DWO? Just trying to get a more detailed understanding of the differences between the two...

Also as a side note, does TCPC improve on Inverse Time from a smoothness standpoint?

[CesarDarioContreras]

Hello, I am asking this question, you can configure a Haas EC1600 for a program to calculate the coordinates relative to the center of the table. For example loading in the center of the plate G54 (already known), and a program with a G55 in a displaced center piece, create a macro that will return the value of the center of rotation ?. I hope you understand my English is bad.

[rusticagenerica]

I wish gods from all religions could bless you multiple times for making such a nice video, with such a great viedi edits, that truly shows us verything very simply. THANK YOU§§

[josephforbes]

Is the machine with multiple milling heads that just phase through each other on sale yet?