topic Re: Modeling a 3D Profile in Fusion Design, Validate & Document Forum

Modeling a 3D Profile

Anonymous — Thu, 30 Aug 2018 11:59:24 GMT

Hi guys.
Could someone help me model this piece?

I'm having trouble creating the channel in the diameter.

Re: Modeling a 3D Profile

TheCADWhisperer — Thu, 30 Aug 2018 12:11:17 GMT

File>Export and then Attach the *.f3d file of your attempt here.

Re: Modeling a 3D Profile

Marco.Takx — Thu, 30 Aug 2018 12:37:38 GMT

Hi @Anonymous,

I think you mean the slot that wraps around the surface.

This is something that is not easy to do.

Inventor (Picture2) has a Wrap function that Fusion (Picture1) doesn't have.

If my post answers your question Please use .Accept as Solution & Kudos This helps everyone find answers more quickly!

Re: Modeling a 3D Profile

melvinbrian3d — Thu, 30 Aug 2018 14:58:04 GMT

this is not 100% accurate, because of the Slot but will be something like this...

Re: Modeling a 3D Profile

chrisplyler — Thu, 30 Aug 2018 15:09:05 GMT

It's a huge pain in the rear end. Open the file I've attached at the end of this post. Scroll through the timeline and examine each step.

Re: Modeling a 3D Profile

Anonymous — Thu, 30 Aug 2018 15:20:04 GMT

Thank you!!
It was exactly what I needed.

Re: Modeling a 3D Profile

melvinbrian3d — Thu, 30 Aug 2018 15:56:49 GMT

@chrisplyler wrote:

It's a huge pain in the rear end. Open the file I've attached at the end of this post. Scroll through the timeline and examine each step.

hey that was crazy idea create a coil and then move it to the slots points to project the touching points... i never thought about this... and your .f3d name was accurate 🙂

Re: Modeling a 3D Profile

TheCADWhisperer — Thu, 30 Aug 2018 16:18:08 GMT

Unfortunately it is not correct.

Put a pin in it an animate the mechanism.

What do you observe?

Re: Modeling a 3D Profile

TheCADWhisperer — Thu, 30 Aug 2018 16:31:53 GMT

@Anonymous wrote:
It was exactly what I needed.

Are you sure about that?

Re: Modeling a 3D Profile

melvinbrian3d — Thu, 30 Aug 2018 16:33:25 GMT

@TheCADWhisperer wrote:
Unfortunately it is not correct.
Put a pin in it an animate the mechanism.
What do you observe?

could you share the correct one?

thanks!!

Re: Modeling a 3D Profile

TheCADWhisperer — Thu, 30 Aug 2018 16:38:36 GMT

@melvinbrian3d wrote:
could you share the correct one?

I'll give everyone a couple of days to chew on it first to see what they can come up with - you might join into the effort and give it a try.

Be sure to test with a pin (representing the end-mill cutting tool translating while the shaft rotates).

Re: Modeling a 3D Profile

melvinbrian3d — Thu, 30 Aug 2018 16:38:52 GMT

@TheCADWhisperer wrote:
@melvinbrian3d wrote:
could you share the correct one?
I'll give everyone a couple of days to chew on it first to see what they can come up with.

"a Couple of Days" O.o

Re: Modeling a 3D Profile

TheCADWhisperer — Thu, 30 Aug 2018 16:46:20 GMT

It is generally a case where the designer either knows how to achieve the correct geometry - or they quite likely will never figure it out.

This question has come up enough on virtually all of the MCAD forums that a bit of research can turn up the solution - but I challenge you to try to figure it out on your own without research.

Re: Modeling a 3D Profile

melvinbrian3d — Thu, 30 Aug 2018 16:48:02 GMT

@TheCADWhisperer wrote:
but I challenge you to try to figure it out on your own without research.

i Will.

Re: Modeling a 3D Profile

TheCADWhisperer — Thu, 30 Aug 2018 16:49:21 GMT

I have already given some hints - think about the manufacturing process.

Re: Modeling a 3D Profile

chrisplyler — Thu, 30 Aug 2018 19:38:34 GMT

@TheCADWhisperer wrote:
Unfortunately it is not correct.
Put a pin in it an animate the mechanism.
What do you observe?

I know it's not correct. Need the ability to "sweep" a pin BODY. But it's good enough for a model representation.

If you're actually going to CAM it, Don't model it at all. Just use the three projected legs as a path, and run an end mill down that path while the blank is in a 4th axis.