topic Re: How do I get these two bodies to join? in Fusion Design, Validate & Document Forum

How do I get these two bodies to join?

RogerInHawaii — Tue, 31 Jan 2023 11:57:37 GMT

I have two fairly simple bodies that I want to join together. One part is a long grey piece. The other part is intended to be a curved end on the first piece. I show the end in green in the pics just so that it's easy to see which is which.

So I do a Combine/Join operation.

When I select the green part to be joined to the grey part it reports an error, saying that it has trouble when the parts have faces or edges that are nearly identical. Well, the faces and edges certainly ARE identical, since I used the flat end of the grey piece as the basis for creating the green piece.

But that's exactly what I want, a rounded end to the grey piece.

I initially just tried using the Revolve tool to revolve the profile for the end piece and do a JOIN right within the revolve. But I got basically the same error, refusing to join it. So I then used the Revolve to just create a new body, in hopes that I could then use Combine to join them. But, nope.

I even tried making the end piece a full 360 degree piece, so that it doesn't have a flat face against the identical flat face of the grey part, but it still generates an error, apparently not liking that the edges match up.

So HOW DO IT? How do I get a rounded end on the grey piece?

Surely this kind of operation must be done all the time.

The design is attached in case someone wants to give it a try.

Betreff: How do I get these two bodies to join?

g-andresen — Tue, 31 Jan 2023 12:24:32 GMT

Hi,

please share the f3d file

günther

Re: How do I get these two bodies to join?

TheCADWhisperer — Tue, 31 Jan 2023 12:24:38 GMT

@RogerInHawaii

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Re: How do I get these two bodies to join?

whittakerdw — Tue, 31 Jan 2023 13:33:18 GMT

The design is attached as a dxf which is a 2D drawing, what is required is an .f3d in order to get the 3D model

Re: How do I get these two bodies to join?

TheCADWhisperer — Tue, 31 Jan 2023 13:42:47 GMT

@whittakerdw wrote:
... a dxf which is a 2D drawing...

@whittakerdw

dxf format can be 2D or 3D geometry...

Re: How do I get these two bodies to join?

whittakerdw — Tue, 31 Jan 2023 13:46:37 GMT

Thank you for the insight @TheCADWhisperer. I have only ever used it for 2D and had no idea it could be used for 3D.

Re: How do I get these two bodies to join?

g-andresen — Tue, 31 Jan 2023 14:54:15 GMT

Hi,

@whittakerdw schrieb:

The design is attached as a dxf which is a 2D drawing, what is required is an .f3d in order to get the 3D model

The file is corrupted.
It cannot be opened in 2D format or via upload.

günther

Re: How do I get these two bodies to join?

RogerInHawaii — Tue, 31 Jan 2023 18:56:26 GMT

Aw, dang it. I accidentally saved the wrong file type.

Here's the right file . . .

Re: How do I get these two bodies to join?

RogerInHawaii — Tue, 31 Jan 2023 19:35:55 GMT

OK, after a lot of weird operations I was finally able to get the ends of the ridge attached to the body of the ridge. The combined ridge is shown below in blue.

Now I just want to take that blue ridge (which actually extends a bit into the red body) and combine it with the red body. No problem, right? it's a simple combine operation, right? But NOOO! It's refusing to combine, once again reporting the same kinds of error.

I've attached the latest f3d design file, hoping someone will take a look and tell me what I'm doing wrong.

Re: How do I get these two bodies to join?

jhackney1972 — Tue, 31 Jan 2023 19:35:58 GMT

The error I see is in the original sketch of the tapered rounded end Revolve. The profile was crossing the axis of the Revolve. If this is corrected, you can create the total end with one Revolve joining it to the existing body and eliminate one Revolve and a Combine from the time line of the component. Video will explain.

(view in My Videos)

Re: How do I get these two bodies to join?

jhackney1972 — Tue, 31 Jan 2023 19:47:41 GMT

If the process is used, to correct your first post, then I think it will join to the with what you want. Model is attached after the first repair and what I think you want to join it to.

Re: How do I get these two bodies to join?

RogerInHawaii — Tue, 31 Jan 2023 20:09:52 GMT

Thank you, @jhackney1972 , your video zeroed in on the source of the problem. I don't know how you found that, but I very grateful you did. I've been pulling my hair out trying to track down the problem and you did it!

I finally got the ridge complete AND joined to the main body.

Re: How do I get these two bodies to join?

RogerInHawaii — Tue, 31 Jan 2023 20:12:24 GMT

By the way, I really, really wish this forum provided a way to send a financial tip to people who help out. There have been so many times, like this one, where someone takes the time to look into a problem that I just can't figure out and they provide the answer, and I'd really like to send them a few bucks as a thank you.

Re: How do I get these two bodies to join?

jhackney1972 — Tue, 31 Jan 2023 20:47:36 GMT

There are a lot of talented Fusion 360 users that frequent the Forums and I think I can speak for most of them by saying we enjoy helping. Your thanks and punching the "Accept Solution" icon is reward enough. We all become better users of Fusion 360, either by asking questions or by answering them. I read most every post and learn something new quite often. Helps me keep the grey hairs of age from getting to my brain!

Thank you for the nice note and gesture!