VERICUT Users' Forum

DaveF

Senior Member

From: Valencia, CA

Registered: 2005-08-20

Posts: 304

CATIA R20 The Aptsource def for Bell cutters has Changed

Hi Friends,

Just a heads up….

FYI, The Aptsource definition for Bell cutters has been enhanced, and therefore, changed.

It used  to be that the diameter was the theoretical intersection with the side and bottom.

Now it is just the diameter measured as with a micrometer over the largest diameter at the radius.

I do consider this an improvement, by the way. I just got surprised by it.

The change happened between R19 and R20

I tested cones and pencils, and they are unchanged

I checked with the CATIA COE DPC and Mark confirmed that this was and enhancement that was requested.

This effects my post failsafe, but it is an easy fix.  Just a little more trigonometry in there.

I suspect it will effect someone else some where.  My guess some users might prefer it the way it was, or have a CatSetting to let them choose, but this is what we have for R20.

For you Vericut users, running off the cutter definition will change.

I also noted that the CATV5 interface does not make the bell cutters correctly, and also does not make double chamfer tools correctly, so I reported that to CGTech, and sent them a small process to debug it.

Best Regards

Dave

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Dave Frank
Aerospace Dynamics International, PCC
Valencia Ca
"Where else can you have this much fun,.......and get paid???."

SINGH

Member

Registered: 2011-06-15

Posts: 1

Re: CATIA R20 The Aptsource def for Bell cutters has Changed

Hi All,

This is my first post here.

Note for Catia V5R20 users:

I have reported this problem to Mark a few years ago and finally it got fixed. Now you can use MAFC MO with this tool and no problems. Before it was leaving drive-surfaces heavy.

There is still a minor problem left in the cutter definition parameters.
But here is a quick workaround.

If your are building a new cutter from scratch then make sure you change/update entry-diameter or corner-radius or cutting-angle after you make any changes to Nominal diameter.

example:
Enter the command in power input box without quotes "c: Conical Mill"
Select "ResourcesList" in the PPR tree

Then change the cutting-angle "A" to -45 (for large angle you would notice the effect clearly)
Now change entry-diameter "d" say 1.00in
Now change corner-radius "Rc" = .125in
Now change the Nominal-diameter "D"= .625in and you'll notice the the entry-diameter "d" is no longer measured/displayed from the outer edges
Just open any of other parameters ( A, Rc, d)  as mentioned above and click OK without modifying it (You can modify/update as well).
Then Catia will recalculate the "D" value in order to keep correct entry-diameter "d"

You can change these parameter from the interactive windows dialogs "Edit Parameter" and you can do it from the "Geometry" tab as well but there you have to enter some new value in order to update the tool definition.

or in other words
Always double check after you make any changes to Nominal-diameter parameter "D" in the Tool definition for bell cutters.

Best Regards,
Samarinder