topic Re: Form modeling : smoothing areas, joining 2 parts in Fusion Design, Validate & Document Forum

Form modeling : smoothing areas, joining 2 parts

ruben_van_lerberghe — Sat, 07 Jun 2025 10:53:37 GMT

Hello,

I have a model for a table that I quite urgently need to present. My 3d model is still very flawed but the smoothing function does not work as i want it.

The 2 legs that sweep and twist underneath should look the same from a side view (looking at the twist) but from a front view I want the 2 sweeps to come together and then separate again.

I attached how i want it with some veneer strips to give an idea. And also the flawed model where the connection is not yet made.

Since i need to model it urgently, all help is very welcome.

Thanks in advance.

Re: Form modeling : smoothing areas, joining 2 parts

davebYYPCU — Sun, 08 Jun 2025 02:50:13 GMT

Can't be sure this is exactly what you ask for but will give you clues how to get there. (I found the tabletop section not symmetric, so modified to do what I needed. You may like to fix the floor cuts.

Might help...

Re: Form modeling : smoothing areas, joining 2 parts

ruben_van_lerberghe — Sun, 08 Jun 2025 06:23:55 GMT

Hello,

Thanks a lot.

Definitely looks more balanced now.

The symmetry is only for the table top and top part of the legs.

Underneath, each leg is bending in its own way and from a side view there is this twist which is quite necessary. Your solution makes them blend into each other, but the twist is lost.

Re: Form modeling : smoothing areas, joining 2 parts

davebYYPCU — Sun, 08 Jun 2025 06:55:14 GMT

Appears that you want the front vertical face on the right to finish as top surface on the left, 90 degree twist.

What is the cross section at the Origin position, all 4 legs? I currently have a rectangle, would a square at 45 degrees work?

Re: Form modeling : smoothing areas, joining 2 parts

ruben_van_lerberghe — Sun, 08 Jun 2025 07:46:26 GMT

Thanks for your quick reply.

So at the point where you marked it on the left ( the edge of the rectangle) it has already twisted 90 degrees from the left corner. But yes between the 2 points of the edges, there is a 90 degrees twist.

The cross section at the origin position would be that all 4 legs have blended into a slightly angled rectangle ( as on the strips of veneer in the picture). A square would be too heavy in my opinion. But if this is all in form mode, I can still turn it into a square no ?

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Sun, 08 Jun 2025 15:56:19 GMT

sI am getting there ...

(view in My Videos)

While this can be done with Fusion, obviously, I am not using Fusion for this, but Blender.

When done, I'll transfer this into Fusion.

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Sun, 08 Jun 2025 16:40:42 GMT

Is this getting closer to the shape you are looking for?

Re: Form modeling : smoothing areas, joining 2 parts

ruben_van_lerberghe — Sun, 08 Jun 2025 20:31:59 GMT

@TrippyLighting

the shape of the tabletop and the legs going down is actually looking quite close to what i'm making when looking at the model of @davebYYPCU

but the way they intersect in the middle is effectively the way you are modeling it in blender. the only thing is that they don't sit on top of each other. ( When the client appoves) I'm going to join them where they come together and then they separate again. But you captured the flow effectively

Thank you already

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Sun, 08 Jun 2025 22:29:05 GMT

@ruben_van_lerberghe wrote:

...the only thing is that they don't sit on top of each other. ( When the client appoves) I'm going to join them where they come together and then they separate again...

Can you explain that in more detail?

Re: Form modeling : smoothing areas, joining 2 parts

davebYYPCU — Tue, 10 Jun 2025 02:10:57 GMT

I can't get past a square at the origin, due to where the edges will end up. I noted that your canvass as a flat top at the Origin but need more clues if that is to be the case.

Not pretty until the how is done...

Same file has old work pushed up the timeline.

Might help...

Re: Form modeling : smoothing areas, joining 2 parts

SaeedHamza — Mon, 09 Jun 2025 11:16:46 GMT

Is this close to what you need?

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Mon, 09 Jun 2025 11:27:56 GMT

@davebYYPCU I think the model you attached belongs to another thread 😉

Re: Form modeling : smoothing areas, joining 2 parts

davebYYPCU — Tue, 10 Jun 2025 02:12:36 GMT

Oops , Correct, Edited and replaced the file in that post higher up. Sorry about that.

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Mon, 09 Jun 2025 17:15:27 GMT

(view in My Videos)

How is this?

Re: Form modeling : smoothing areas, joining 2 parts

ruben_van_lerberghe — Tue, 10 Jun 2025 14:03:34 GMT

This is amazing, really close to how i want it.

Thank you! Can I still adjust some smalle areas in form mode ?

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Tue, 10 Jun 2025 14:43:50 GMT

Yes, but there is one caveat. I have applied weighted edge creases in Blender, which helps round over things. In Fusion, a crease is sharp with no weight.

(view in My Videos)

Re: Form modeling : smoothing areas, joining 2 parts

ruben_van_lerberghe — Tue, 10 Jun 2025 15:19:58 GMT

Hello @TrippyLighting ,

Yes that helps a lot , thanks again.

The small model you imported in the end, is exactly that, a small model on a 1:4 scale. The top of this model has been approved by the client, so ideally i would conserve that, combining it with the leg structure you have modeled ( the large one)

If you think it's better to stay in Blender until finished, I can try this as well. I don't know if its a big learning curve.

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Wed, 11 Jun 2025 15:35:50 GMT

@ruben_van_lerberghe wrote:
If you think it's better to stay in Blender until finished, I can try this as well. I don't know if its a big learning curve.

If you are not familiar with Blender, that might be difficult. But I would recommend for you to look into using Blender for future projects. It has many more tools that can hel making this easier and better to edit.

However, that requires an all quad geometry. There are a few N-Gons in your table top that would not import "cleanly" into Fusion. they will be triangulated. While those additional edges can be deleted, my recommendation woudl be to model exclusively with 4-sisded polygons (quads)

@ruben_van_lerberghe wrote:

...The top of this model has been approved by the client...

While that can be worked around, that is unfortunate as it's topology is less than ideal. You used some less than ideal quads, there are a few N-Gons and the 4 legs aren't all the same. If you ask for help earlier, that will make the process a bit easier 😉

Re: Form modeling : smoothing areas, joining 2 parts

ruben_van_lerberghe — Wed, 11 Jun 2025 15:50:35 GMT

I used the top of an earlier model and weld vertices with yours. Just trying to figure out the best strategy to get all 4 corners symmetrical and close to the model that i put in yellow. Is there a strategy that can make this faster and consistent along all 4 corners ?

Re: Form modeling : smoothing areas, joining 2 parts

TrippyLighting — Wed, 11 Jun 2025 17:33:43 GMT

Please put the table top and my file into a separate model and attach that. Then I can demonstrate what I would do.

The model you had attached to your last post shows 4 different T-Spline bodies all in different levels of completion and also all no centered about the origin, which is a big no-no in modeling anything symmetrical!