Intermittent Circular Welds - AIS'08sp3

[Anonymous]

Has anybody ever managed to successfully create an Intermittent Circular Weld ?

I've tried various settings and can see no hope.

I'm guessing that Inv want the exact distance, namely it wants the Intermittency to exactly equal PI x Radius. In which case
we need to be able to define the weld by angles.

Or Inv needs to be able to overlap the end, as a welder would do when marking out such a weld.


Or am I missing something completely ?




--
Duncan
"Humour ... is one man shouting gibberish in the face of authority, and proving by fabricated insanity that nothing could be
as mad as what passes for ordinary living."
(Terence 'Spike' Milligan K.B.E., 1918-2002)
www.autodesk.co.uk/inventorjobs
http://support.microsoft.com/default.aspx/kb/555375

[Anonymous]

I tried this in 2008 SP2 (I haven't gotten around to installing SP3) and
2009, and intermittent welds around a cylinder worked.

Open the cosmetic weld sample and create an intermittent weld around the big
cylinder. I used .5 inch length and 1 inch center to center distance. If it
works, then there is an issue with your model.

Loren Jahraus
Autodesk Inventor Product Design

[Anonymous]

What error are you getting?
Make sure that in the Intermittency the Length is less than the Pitch. Pitch is Center to Center.

[Anonymous]

I forgot to mention it was an internal circular weld.

If the weld is continuous there isn't a problem.

It is only when I change the weld to Intermittent, see attached.


--
Duncan
"Humour ... is one man shouting gibberish in the face of authority, and proving by fabricated insanity that nothing could be
as mad as what passes for ordinary living."
(Terence 'Spike' Milligan K.B.E., 1918-2002)
www.autodesk.co.uk/inventorjobs
http://support.microsoft.com/default.aspx/kb/555375


"Loren Jahraus (Autodesk)" wrote in message news:5981918@discussion.autodesk.com...
I tried this in 2008 SP2 (I haven't gotten around to installing SP3) and
2009, and intermittent welds around a cylinder worked.

Open the cosmetic weld sample and create an intermittent weld around the big
cylinder. I used .5 inch length and 1 inch center to center distance. If it
works, then there is an issue with your model.

Loren Jahraus
Autodesk Inventor Product Design

[Anonymous]

Very Odd.
It has something to do with how it's constrained. Why?? I don't know.

Use an Insert Constraint from the inside of the Hub to the bottom inside of the Flange and it will work.

I didn't look at your driving sketch but maybe something is at a slight angle? It should work because you can give the weld a length and number of welds and it works.

Hopefully this work around will work for you.

[Anonymous]

Hi Duncan,

I forwarded this to QA and development.

Loren

[JoyceZhou]

Hi, Duncan
I opened the Elevator Drum Sub-Asm.iam in your attachment and edited the existed Fillet Weld1 to set the Intermittency as below: Length=20mm, Spacing=10mm, Number=10. It works in my R2008SP3 and R2009RTM build.
Could you inform which build and OS are you using? and is there any differences for the workflow?

Thanks
Joyce

[Anonymous]

You found a better work around but it still doesn't really fix it.
On an outside weld you don't have to add the number of welds. If figures it automatically.

Leave the number field blank on an inside and I bet it will error. However do the same to an outside weld and it works fine.

[Anonymous]

By the way my tests were on INV 08 with SP3 Build 342

[JoyceZhou]

Thanks for your information, Swile. After investigate this with Developer, we find there is inconsistent behavior between Create and Edit intermittency weld in Inventor(R2008 SP3 and R2009)
When create closed Intermittency outside/internal Weld in ISO template(as the attached file), we need to add value in all the three fields: Length,Spacing, and Number; but to Edit one weld to Intermittency Weld, adding value in Length & Spacing or Length &Number is enough in some cases. e.g.
from the attached assembly, edit Fillet weld1, in Intermittency, 1) set Length=10mm, Spacing=5mm, leave Number blank, click ok, or
2) set Length=10mm, Number=20, leave Spacing blank, click ok
Developer states that there is default value in the blank filed, which is very large, when edit the Weld, it will create as many weld-instance as it is needed to close the weld.

I have logged 1100267 for the inconsistency in our Tracking system.

Duncan, I would suggest you to fill all the three fileds when create any intermittency weld. If you need a partial weld, then workarounds such as the From-To termination, surface splitting, or creating small cuts as weld preps to define the weld location.

Please contact me if you have any other issues, jinghuaDOTzhouATautodeskDOTcom
Thanks
Joyce

Message was edited by: JoyceZhou (autodesk)

Message was edited by: JoyceZhou (autodesk)