Gouges with Filter On in X3

[ARP]

Got in this morning to see a finished aluminum part with 2 gouges in it. It is now at the weld shop

Surface toolpath was Parallel. When the filter is set to 2:1 the toolpath makes an arc in the YZ plane when going over an edge and gouges. If the filter is off, no gouges. WTH? It seems the filter option works against you when you most need it. If the filter is off, I get a jerky motion on the machine so I turn it on. I'll send the part to my local Mastercam dealer but I trust you guys more for a better answer.

I'll try to give some screen shots.

[Louis LePoris MLC-CAD]

I would try 1:1 ratio and double checking tolerances. Then after inspecting your toolpath you may want to turn off/on the new arc filter in your control panel applet to further manipulate this behavior.

[Chris Rizzo]

Did you run an .stl compare on it?

[ARP]

Unfortunately not Chris.

[Roger Peterson]

does the gouge show up in verify or backplot? If it doesn't show up there it's not the filters fault. There may be some arc output settings that don't jive with what the machine wants or simply an arc error at the machine. What kind of machine?

[Steve Hattori]

I have found that the filtered toolpath always has little gouges (sometimes big), but the unfiltered point-to point is fine if you reduce your tolerance to .0001". Makes huge program, but very smooth motion, as long as the surfaces are smooth. Also may take verify a day or two to get through it, and will probably crash before it finishes. Had some luck using an stl of the model as stock and running verify to check for gouges-.

Good luck!

[ARP]

Roger,

The gouge does show in Verify and if you really scrutinize the toolpath in backplot you will see the problem area but I'm trying to learn more about the filter and its issues so that I don't need to spend so much time checking the toolpath before I run it.

If I chage the Min Arc to .050" from .005 then the gouge arc goes away.

We run Haas VF2's.(sorry, no flame please)

 

Steve, I agree. What's the purpose of the filter if it makes the part worse??? Shouldn't the filter smooth out the motion AND make less code?

 

I'd like to attach pixs here but I need a url or something to post from. I can't cut and paste.

[RobertELee]

Go into MCAMX control panel applet and turn OFF the 'New Arc Filter'

 

I had that same issue, luckily it was in areas that were able to be welded, if it were part detail I would have had to order new steel.

 

Since turning it off I haven't had the problem.

[JayM]

I had this exact problem with a part last week. It only occured when I turned the filter up to high (less accurate). I agree with Louis, the best way to fix this is to tighten on your tolerance.

 

I run a VF3 and have gotten with our dealer about the jerky problem. As I am sure you know HAAS are not great highspeed machines. But if accuracy is not an issue then you can make setting adjustments to your machine to make it run faster.

 

Setting 85 and 191 work together to control the machines accuracy. Change 191 from Finish or Medium to Medium or Rough.

[Brian B 74]

I have had this problem with only the Surface Parallel toolpath. I did exactly what Robert said - turn off the new arc filter. Problem went away.

 

[ARP]

quote:

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Go into MCAMX control panel applet and turn OFF the 'New Arc Filter'

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Can you give a screen shot or walk me through where this is? Do you go into Machine Definition?

[CDL2042]

Same problem here, but also with scallop toolpath. Looks like Mickey Mouse ears.

 

Regardless of settings, this is a new problem and yet another thing you have to watch out for as Mastercam continues to "improve" their product.

[Midwest]

quote:

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I'd like to attach pixs here but I need a url or something to post from. I can't cut and paste.

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Try this site to post a picture on forum.

 

 

[RobertELee]

quote:

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Can you give a screen shot or walk me through where this is? Do you go into Machine Definition?

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Start, Mastercam X3 Folder, MCAMX Control Panel Applet, Toolpath Support, Change 'New Arc Filter' to 'Disable'

 

Be sure to restart Mastercam for it to take effect

[EazyE]

RobertELee - can this be done in x2 also.. I run 2, VF4 and VF2. Same problems as ARP.

[RobertELee]

No, I believe the new arc filter is only in X3. Never ran into the problem before X3 so I cannot help you out, sorry.

[ARP]

EazyE,

We have 2 seats of M/C and I run X2 and my buddy runs X3. He was the victim of the gouge. I went thru control panel (found out its actually Windows - Control panel - double click on X icon)and I don't get the option about the "New" filter in X2. We disabled the "new filter" in X3 and presto chango... teh stinkin' gouges no there.

I'm going to program the part in X2 and see what happens.

 

+1 CDL2042...I find these "improvements" a bit suspect.

 

Thanks Midwest...I'll check it out.

[ARP]

Here is the scene of the crime:

 

The magenta colours are the areas being machined.

 

'Uda mang Midwest!

[Greg Williams]

Ouch, Please send that one to QC

[mig]

So on X4 is fixing the problems ?

Sometimes I want move back on v9 and WorkNC.

Anyone using Cimco C-hook for mastecam?

[Thee Rickster ™]

They need to know of the bug to fix it.

 

So everybody email QC with this issue because it

takes alot of complaints to get certain bugs on the top of the priority list.

 

It has happened to me also and cause me to replace

the material I was working on

[peon]

That bug should only take ONE complaint to top the priority list. That is a flat out violation of the surfaces.

[Thee Rickster ™]

Yes, but it is in X3MU1 very old software that

has no more bug fixes coming out. We need them to

be aware of it before X4 MU1 comes out next year.

:sarcsm off:

[Midwest]

Arp...........That looks like something Hurco used to do 2 meh..........

 

 

The scallop tool path added a small gouge like that in a gate I was workin on a few weeks back in a mold.

 

I was glad it was only in the gate and not the part.

 

[Brian B 74]

Getting the gouges in HST Raster toolpath as well with the filter turned ON.