Dynamic tool compensation
Posted 15 May 2008 - 09:01 AM
Posted 15 May 2008 - 09:17 AM
I would tell anyone looking to buy a 5 axis and spend that amount of money and then get cheap on this option needs to just not bother buying the machine you are not ready and really do not want to get into 5 axis machining.
Posted 15 May 2008 - 09:19 AM
One example would be machining a helix on a cylinder. In a standard machine you would need to make sure that the cylinder was concentric with the rotary axis. If you have dynamic comp, it doesn't matter if the cylinder is offset as the machine will use the other axes to compensate as it rotates.
Dynamic comp allows you to put mount the part anywhere on the table without worrying where the datum was in the CAM file.
Posted 15 May 2008 - 09:20 AM
Posted 15 May 2008 - 09:29 AM
Posted 15 May 2008 - 09:35 AM
Posted 15 May 2008 - 09:46 AM
+1 on Crazy, don't bother without it.
Posted 15 May 2008 - 09:57 AM
Posted 15 May 2008 - 10:30 AM
Posted 15 May 2008 - 01:42 PM
FYI...the Fanuc based controls need to have the rotarys at zero to activate it, while Heidenhain and Siemens controls can activate it anywhere.
It is relativly a new feature for Fanuc, but Siemens and Heidenhain have been doing it for a while.
Posted 15 May 2008 - 11:12 PM
Matsuura has both G43.4/G43.5 ( RTCP ) G68.2 ( Tilted work plane ) and G54.4 ( work setup error compensation ) as an option for all their 5X machines. It comes as 5X related option package.
And the newest release of the Fanuc 30-i don't need rotrarys at zero to activate. But this is only about 6 month old.
For a Matsuura you should go for the Matsuura control option called 19.3. This is a combination of all the Fanuc hignspeed stuff, dataserver and the 5X package.
Posted 16 May 2008 - 02:30 AM
I knew Fanuc was working on this issue, but I have yet to see any Fanuc control that didn't behave like this. Maybe I'm working with old data, thanks for the correction!
Posted 16 May 2008 - 10:16 AM
You're right, totally has nothing to do with your CAM software.....but a lot to do with the post.
Sounds like you're looking at a trunnion. Definitely get the G54.2. It works for both 3+2 and 5-axis. G43.4 isn't really doing much more for you except the ability to use diameter wear comp for swarf machining (G41.2).
BTW, Matsuuras do have the G54.2. Not sure about G43.4 though. Mori has both.
Good luck with it Shawnald!
Posted 16 May 2008 - 12:21 PM
If the Matsuura has G54.2 it usually also has G43.4 as both these are bundled in the 5X Matsuura software package. But I think Matsuura now are using G54.4 instead of G54.2
Posted 16 May 2008 - 06:16 PM
Posted 19 May 2008 - 07:56 AM
You are correct. G54.2 doesn't compensate for the "Stacking error" so to speak. The new function G54.4 has now replaced this function.
You are also correct on the "Dynamic" functions for Fanuc controls.
TCPC = 5-axis transformation
TWP = 3+2-axis transformation
We program these functions with G-code relative to the part "WCS" rather than the "MCS".
We sell our 5-axis Matsuura's with a set package. This includes 5-axis transformation functions and CAMplete TruePath software for both platforms.
It's one thing to have the functionality, and it's another thing to get good g-code to support it.
Posted 20 May 2008 - 02:44 AM
Moris have it....Matsuuras don't. They band-aid it with CAMPLETE, which is a hassle, in my opinion.
Producing the actual code is a band-aid???