Modeling a 3D Profile

[Anonymous]

Hi guys.
Could someone help me model this piece?

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

[TheCADWhisperer]

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

[Marco.Takx · Accepted solution]

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!

[melvinbrian3d]

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

[chrisplyler · Accepted solution]

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.

[Anonymous]

Thank you!!
It was exactly what I needed.

[melvinbrian3d]

---

@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 🙂

[TheCADWhisperer]

Unfortunately it is not correct.

Put a pin in it an animate the mechanism.

What do you observe?

[TheCADWhisperer]

---

@Anonymous wrote:

It was exactly what I needed.

---

Are you sure about that?

[melvinbrian3d]

---

@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!!

[TheCADWhisperer]

---

@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).

[melvinbrian3d]

---

@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

[TheCADWhisperer]

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.

[melvinbrian3d]

---

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

---

i Will.

[TheCADWhisperer]

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

[chrisplyler]

---

@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.