Flat pattern a feature 1

[amsmarle]

Hello, I need some advice please,
(I am using Inventor 2008 pro Vista)
I have produced an 'Air Nozzle Hub' with 12 vanes (rotated) equally spaced between two rolled ring diameters, the vanes are at an angle. I made the vane in a part file, then saved it to a assembly file, I then positioned the vane and cut it at the required diameters, to produce suitable profiles for it to fit within the hub, (i'e' two rolled ring dimeters)

I can't seem to dimension this vane in the IDW file, I have tried the intersection tool but no matter what I do I cannot cannot get enough dimensional info for detail,

1) Is there any way I can make a flat template from this assembly?.

2) Have I modeled a vane that is perfect for the job, but not suitable for Inventor to dimension?

any advice would be appreciated

Regards

amsmarle

 

[aardvarkdw]

Can you post the file? I can't imagine that you have an "undimensionable" part. It may require some creative dimensioning but it can be done I am sure. Another option would be to look into Model Based Definition (MBD), there is an ASME standard that covers this. ASME Y14.41-2003.

David

 

[amsmarle]

Hello David, thanks for the reply, yes I can post the file, how do I post it?, also what files would you need?

Alan

 

[aardvarkdw]

All the .ipt and .iam files. There are several file hosting services out there, read this.
javascriptpenindex(450,450,'

http://www.tipmaster.com/includes/refinfo.cfm?w=450&h=450')

Place your files into a zip folder and upload them to one of the sites listed (or another of your choice). Then post back with the link.

David

 

[amsmarle]

Hi David, this 'tipmaster' link shows me some cross referencing info, no sites listed?
Should I use 'pack and go' and then zip the files and send them, (you would need my idw file)?, as this is the problematic issue with detail info.
Please excuse my ignorance in this matter I am new to this
Do I post the link for you as per a normal, or do I use the step 3 attachment?

Alan

 

[aardvarkdw]

Sorry. Try this link.

http://www.eng-tips.com/faqs.cfm?fid=1177

David

 

[amsmarle]

Hello David, Thanks again for your swift response, I have put the files in the Step 3 attachment, I hope I have got it right

Alan

 

[amsmarle]

Hello David, I am wondering if you were able to access my files re this 'Vane dimensioning query', (it is the first time I have posted files), if so, is the vane feature dimensionable?, particularly to show detailing information.

amsmarle

 

[Azum]

If its any help the download works fine and I can view the files. I would not think you could make a flat temmplate because is not sheet metal but I am sure there is a way. I will look again lunchtime.

I see from the border i am just down the road in New Arlesford

 

[amsmarle]

Hello Azum, yes, my son is with them, but on site at the moment, and he is not impressed with the standard of details in their present drawing batch, (i.e. the fabricator is left to his own devices in how to produce (for instance the vane). I think the drawings have been done by an agency, he has taken a typical file and wants to show them how Inventor would look, done properly of course, I am retired, but helping him out with this, and came to the point where I could not give enough details for manufacture, my thoughts were that I have used the wrong method of producing the profile, i'e' cutting on an angle.

So any imput would be appreciated,

NOTE: for others posting to Hosting site's).
Also one other thing is concerning me, when I posted the files I was not aware I had to retain the delete file link in order to delete the files from the hosting site. So now I am left with the files posted and no way of deleting the files from the hosting site.

Again any advice would be gratefully received from any of the very helpful Inventor members group

Alan

 

[amsmarle]

Hello aardvarkdw/David,
Azum's post shows he has been able to access the files that you requested, has accessing the files been a problem for you?, or are you not able to advise/help as to the related problem?

Alan

 

[aardvarkdw]

I actually had not had a chance to try and now it doesn't seem to be accessible.

You can make the files smaller by pulling the end of part marker all the way to the top of your model tree and then saving.

Sorry I didn't get to this sooner.

David

 

[aardvarkdw]

I took me a while to fit this in around other projects but I was able to come up with a method for dimensioning this part. It wasn't easy, and if your company standards will allow, I would recommend using model based definition (see ASME Y14.41)instead of a standard drawing.

Inventor apparently does not allow you to create an axillary view from reference geometry so you will need to fool it. Create a rectangular part and constrain it normal to the original profile (sketch1)of your vane. Create a view in your drawing that shows true size and shape of the circular cuts made by inner and outer rings. Create an axillary view from an edge of the rectangular part. This will give you the TS&S view of the vane's profile. Turn the visibility of the rectangular part off in both views. Now create another part that is normal to workplane1 in vane.ipt. Then create an axillary view from your new part now you have a TS&S view of the angles.

It isn't pretty and it requires you to use descriptive geometry (if you don't know what that is go ask a drafter that was around in the board days...)but it is possible.

I would look into MBD and save yourself some grief.

David

 

[amsmarle]

Hi David, Sorry I'm late replying to your helpful solution, firstly thanks very much for your endeavours, secondly, I will attempt to produce a TS & S as per you directions, if you still have my email from when I sent the files, I would appreciate a copy of the files showing the TS & S view.

As originally stated, the reason for the little project was for me to help my very busy son (I'm retired) to show the company he is with at the moment, just how much more can be achieved using Autodesk Inventor,

Thanks once again
Alan