Custom tool in Verify has facets ->Not round!!

[MetalFlake]

And it shows my tool under cutting the STL model by .014 on a profile cut when it really is .02" away from the model.

 

Is there any way to 'tighten up' the faceting to minimize the error? I have the slider bar all the way to quality on the verify comfiguration.

 

ftp://www.ppcadcam.com/Mastercam_forum/All_pictures_Jpg,gif,bmp's/verify.jpg

 

...my first image, hope it works.

 

Thanks for any help!!

 

MF

[MetalFlake]

Oh well. Somebody tell me the hot tip to gettimg images to appear on my post/reply?

 

TIA

[Glenn Stephens. from CCCS]

Pictures must be available via http not ftp.

[robk]

MetalFlake,

Quite a few members use this site for uploading pictures. Photobucket

[MetalFlake]

Thanks again robk!

 

[Code_Breaker]

quote:

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Is there any way to 'tighten up' the faceting to minimize the error?

---

I have the same problem. Many times I have to backplot the tool paths and check it with a calculator. Toolpath is correct (and ran perfect), but in verify it shows gouges or cuts where it should not.

 

In very tough cases, I turn on "Turbo (no tool)", zoom in on the area, and then hit ninth button from left -- "Accurate Zoom". It helps some, but still has it draw backs.

 

Sorry, that the best I can do. I will be following this thread for a better answer from one of the greatest team in the Universe.

 

Code_Breaker

[Mike Mattera - TFM]

If you verify it as a block instead of an stl file does it show up different?

 

Mike Mattera

[Mike Whitten CAD/CAM Contractors]

MetalFlake,

 

Please clarify, is the Custom tool the problem or STL stock model or both?

 

Mike

[MetalFlake]

The model is fine. The problem is with the custom tool. The custom tool profile is just an endmill and holder drawn up per the custom tool instructions (Radius=1.0).

 

It looks good in backplot. In verify (with 'as defined' checked)I get an octagonal representation of the round endmill which obvioulsy is a very 'coarse' approximation to the real thing.

 

It under cuts the model by .040" or so.

 

Thanks for any help!!!

 

MF

[Mike Whitten CAD/CAM Contractors]

Wow! that is wierd!. I just had a simalar problem on a Five axis program the other day. I had a Custom Tool built so that I could check for the Holder / Clamp clearance. The tool looked fine but it showed the Tool gouging in "as defined" mode. When I verified in "Auto", it did not show a gouge.

 

It may be a good idea to send that file in to [email protected] so that they could check it out. If they can reproduce it, they will log it and it may get fixed.

 

Thanks

[Guest CNC Apps Guy 1]

I change the value of #77 in the Verify.prm file located in your millops folder. That's always worked for me. Start at .003 and work down.

 

HTH

[Mike Whitten CAD/CAM Contractors]

Thanks James I will do some testing.

 

Mike

[MetalFlake]

Pow!! Problem solved and James comes through again!!

 

!!!Usted el hombre!!

[David Czerw Triumph Gear Systems]

james,

I dont see that parameter.

mcam9ma mill level 3

[MetalFlake]

I had to create it. Just format likethe other ones.