REVIT Pipework - Family Fitting 'PART TYPE' bugs and errors

[glenn.royds]

Hi All

 To follow on from my previous post, several more problems/ BUGS? I have stumbled upon creating customised pipework fittings.  I have noticed several issue with fitting family PART TYPES.

To try explain in my illustration I have used the same model geometry but just changed its PART TYPE in the family.
Certain types display incorrectly the geometry appears flawed, some types instanced parameters cannot be edited.

I have tried to break it down to illustrate the flaws/problems with certain PART TYPES some work as expected some display incorrectly some are not editable some cannot be even aligned?
Also note the display errors even vary with the Discipline and have very odd behaviour I cannot pin down.

I have attached the template file should you want to drill deeper into the problem and see it close at hand.

The fitting I have modelled in this example is a fully parametric Ductile Iron Bellmouth (with gasket visibility parameter) but note this behaviour can be found using any shaped geometry it just was a nice shape to use.

Please note this is far more than a Graphics card problem (see PDF) so no 'reinstall you display drivers' please.

The more I think I know about REVIT the more problems I'm finding, this is really frustrating and basic stuff that should have already been addressed a long time ago..
Many Thanks for looking in and your feedback is greatly appreciated but I feel this is another case I need to raise with AutoDesk dev team.

Cheers
Glenn

[RobDraw]

You should be posting on the product feedback page.

[glenn.royds]

Sorry I cannot see a product feedback page, can you provide a link you are talking about please ?

These are the options I can see for REVIT Forums

REVIT API

REVIT Architecture

REVIT MEP (which this problem relates to)

REVIT Structure

I'm trying to get peoples feedback I am sure I am not the only person who has noticed this issue ?

Cheers

Glenn

[RobDraw]

I'm sorry but your first post made it sound like you already had experience with reporting bugs. It's not in the user help forums. A quick search should get you the page.

[glenn.royds]

I'm trying to get a feel for peoples experience with this issue before raising another ticket, I just cant believe I'm the only person who has noticed these issues with REVIT pipework I keep finding.

I did find a Pipe/Duct connector BUG that required a ticket raised with Autodesk who then replicated the problem and confirmed indeed it was a BUG, the development team are now looking at a fix for this, unfortunately as this is a different issue I will have to go through the whole procedure again which is very frustrating and time consuming.

Cheers

Glenn

[RobDraw]

I think this is more of a question of workflow rather than a "bug". Changing part type seems like one of those things that need to be avoided. Similar to choosing the correct family template instead of changing it after the fact which can yield undesirable results.. Sometimes either can work as expected but others times will fail.

BTW, in case your Google foo is a bit off track, I did a quick search for you.

https://knowledge.autodesk.com/search-result/caas/sfdcarticles/sfdcarticles/How-to-provide-feedback-...

[glenn.royds]

Can you open up the provided file you will then totally understand what I am trying to illustrate this is nothing to do with workflow the family graphically breaks .

A PIPE TYPE FITTING appearance should not change whether its a TEE or an ELBOW it should be graphically correct and behave as such. These families will be used for Ductile Iron pipework with sizes up to DN2000 in size ( 74" imperial) basically the FLANGE EDGE should not disappear or break up.

I was hopefully after some feedback maybe from maybe a piping engineer before I raise a case but this is now obviously not going to happen.

Cheers

Glenn

[RobDraw]

Maybe it's you who doesn't understand. Even an engineer might recognize that Revit doesn't like the part type to be changed after the geometry is created. Similar to changing a family category after the family has been started from an incorrect template. Just because it can be done doesn't mean it is going to work correctly. 

Correct workflow, assign the part type before creating the geometry.

In the future, if you are going to ask for feedback, don't dismiss it because it doesn't agree with what you are thinking. It will prevent anyone with different opinions from responding. Unless you only want to hear from people who support your theory.

[RobDraw]

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@glenn.royds wrote:

I was hopefully after some feedback maybe from maybe a piping engineer before I raise a case but this is now obviously not going to happen.

---

Why would you want input from a plumbing engineer over a well seasoned Revit user? That's like cutting off your foot to spite your face.

[glenn.royds]

 Rob I'm sorry but this is not helping, PLUMBING is the wrong trade you would be laughed out of the office using obscene language like that. We are talking £50+multi million water PIPING installations hence this has to be right we are not producing pretty pictures an incorrect fitting could cost thousands or more if it didnt fit. 

I used a generic shape to illustrate the problems the easiest way I can. I create families using correct workflow unfortunately the only option for Piping is start with GENERIC Metric template set the type create category parameters reference planes geometry look up tables then linked connectors etc.

Unfortunately I think you don't understand what I'm trying to do here, please be constructive and not so negative, I'm trying to help and maybe develop the product that works properly for everybody? my previous post Autodesk development team confirmed to be a BUG in both piping and ductwork, the diameter connector is stuck at -609.6mm dia and cannot be changed I'm sure you have seen this obscure dimension thousands of times but never questioned it ? why because you assume it was how its supposed to work? we have to challenge these issues or they will never be addressed do not assume that it was intended to work this way it can just as easily be a coding problem.

By the way your "Google Foo" link you wont find REVIT in there.

I think leave it at that I'm not falling out over this. I will raise another case with Autodesk and will post back the response.

Cheers

Glenn

[fabiosato]

Hello Glenn,

Unfortunately, the behaviour of the fitting changes as the Part Type value change, also how you draw the geometry of the fitting and the order in which you place the connectors also may affect its behaviour of the fitting.

Regarding to the diameter bug, personally, we edit this data in the properties, through shared parameters, so despite seing the problem, it never make me go after the fix, which I congratulate you!

[Anonymous]

What I have not found is one that suggests the steps in Fusion 360, after which going to CAM. I'm positive there are steps like device exchange, tool length, and so on. I actually have a very simple understanding of Fusion, but no enjoy with CAM soft as you can see.