topic Re: How to filet a shared edge of two components in Fusion Design, Validate & Document Forum

How to filet a shared edge of two components

marks3U6W9 — Mon, 03 Jun 2019 14:30:08 GMT

I'm designing a desk where the front legs are mad from two pieces of timber that have a 45 degree mitre on them and are then glued along that mitre. I then want to run a filet along that mitred edge. Is there any way I can keep the two as separate components but still put the filet on the shared edge in Fusion or t=do they need to be combined into one component? Thanks

Re: How to filet a shared edge of two components

whittakerdw — Mon, 03 Jun 2019 14:33:59 GMT

Can you file=>export as an .f3d file and attach it here? Or possibly attach pictures or a screencast to show in more detail what you are looking for?

Re: How to filet a shared edge of two components

HughesTooling — Mon, 03 Jun 2019 14:57:12 GMT

You might be able to create a plane along path using one of the shared edges and create a sketch of the fillet then Sweep Cut to create the fillet. Hard to say without seeing the part.

Mark

Re: How to filet a shared edge of two components

marks3U6W9 — Mon, 03 Jun 2019 14:58:06 GMT

Sure. Here's an idea of what I'm trying to do

Re: How to filet a shared edge of two components

whittakerdw — Mon, 03 Jun 2019 15:07:24 GMT

Is this what you're looking for? If so, I was able to fillet one side then go back and fillet that same line for the opposite side. I'll have the attached file so you can see what I am talking about in case I don't explain it well.

Re: How to filet a shared edge of two components

marks3U6W9 — Mon, 03 Jun 2019 15:29:57 GMT

Many thanks for your reply but actually that's the opposite to what I'm looking top do. If you imagine I am machining a filet on the leading front edge of the two pieces of timber in the new demo file below after they were glued together. That is what I'm trying to achieve. Effectively a fillet on the new joined edge. Does that make more sense?

Re: How to filet a shared edge of two components

HughesTooling — Mon, 03 Jun 2019 15:41:34 GMT

Is this what you're after? I'm guessing the components later in the design created from combines are workaround to add the fillets?

I have to say though this design is painful to look at and is going to get harder and harder to work with. Have a read of Rule #1. Having a master sketch is OK for some designs but I think I'd rather use the master to create sketches in the components then follow something more like Rule #1. Project references from the master sketch to create sketches within the components.

Mark

Re: How to filet a shared edge of two components

marks3U6W9 — Mon, 03 Jun 2019 15:56:40 GMT

Hi Mark, Thanks for the reply. Yes that is what I wanted to end up with thank you but it seems a very convoluted workflow to achieve something so easy in furniture making. I presume the fact that you've done it this way means there's no quick way to use the filet tool on the shared edge of two components? Might be more efficient for me to combine them and then run the filet I guess.

Yes you are absolutely right about not using Rule number 1. I got distracted in designing the piece in my head and went off course. I'll redo it now to clean it up a lot. Thanks again for your help.

Re: How to filet a shared edge of two components

HughesTooling — Mon, 03 Jun 2019 16:02:34 GMT

The quickest way would be create the leg finished as one piece then split at 45°. You could do this as a subassembly containing both parts then pattern/mirror to create the other 3 corners of the table.

Mark

Re: How to filet a shared edge of two components

HughesTooling — Mon, 03 Jun 2019 16:04:28 GMT

PS don't forget with the plane along path method you're not restricted to a fillet.

Mark

Re: How to filet a shared edge of two components

TrippyLighting — Mon, 03 Jun 2019 16:12:59 GMT

@marks3U6W9 wrote:

Yes you are absolutely right about not using Rule number 1.

Let me as the inventor of that rule clarify something here.

Fusion 360 R.U.L.E #1 does NOT state to always create a component first. Its first works are "When in doubt..."

It later states to create a component as soon as possible.

It is very handy particularly in furniture design to start with a skeleton sketch that allows you to create several components from.

It is also fairly common to first create geometry and then later to split it up into components.

It simply take a little practice to figure out what works best in which case.

Re: How to filet a shared edge of two components

marks3U6W9 — Mon, 03 Jun 2019 16:17:25 GMT

Noted thanks Peter

Re: How to filet a shared edge of two components

HughesTooling — Mon, 03 Jun 2019 17:35:02 GMT

Following on from @TrippyLighting's post.

My initial thought was use a master sketch and project into component sketches. But Looking at this a bit closer it would probably be easiest to create the whole table as one piece then split into pieces and then use components from bodies. Should only need 2 or 3 sketches maybe 5 or 6 to keep the sketches simple and make picking profiles easier.

Mark

Re: How to filet a shared edge of two components

HughesTooling — Mon, 03 Jun 2019 18:17:14 GMT

This problem this piqued my interest a bit so I thought I'd have a go at one piece then split.

How's this look, file's attached. Have a look at the first split, split will only let you pick a continuous path as the split tool.

Mark

Re: How to filet a shared edge of two components

marks3U6W9 — Tue, 04 Jun 2019 06:20:16 GMT

Mark,

Thanks a huge amount for this. Really interesting for me. It never would have occurred to me to do it as a block and then effectively carve out the negative space. Much more like carving a piece of sculpture than making a piece of furniture.

I have a bunch of questions if you have any time today and still have the interest. Looks like you are way ahead of me on the Fusion skill level given how quickly you did this. Do you use it for designing furniture or just engineering?

Re: How to filet a shared edge of two components

simeyesee3d — Wed, 27 Dec 2023 06:14:28 GMT

I came across this post when trying to figure out the same issue, but none of the posts I found had a solution. I thought of something that works very well. I know this is an old post but for people that come across it when looking for a solution.

Create a sketch on the portion (joint base) of the added component that attaches to the main component. I always make the added components a subcomponent of the main component I am attaching it to so it is contained within the main part when I import the .STEP into a slicer.
Use the modify panel to create an offset of the joint base equal to the filletJointBaseValue you want plus 0.001mm.
Extrude the sketch you added with a value of .001mm.
Create a fillet with filletJointBaseValue and it will look like your part is filleted into the main part. And for 3D printing it will be treated as a single object if you don't separate the components.
If the added component already had a joint like in my case, it may just run the .001 extrusion of the fillet base into the main part and you won't have to adjust anything. Otherwise, you might need to adjust the joint so that the fillet base is buried in the main component if you care about the extra .001mm.

Re: How to filet a shared edge of two components

Anonymous — Wed, 27 Dec 2023 07:32:41 GMT

First let's discuss your problem. I have no idea if this is just a model. Or, if this will ever get to manufacturing. Fillet leaves a noticeable distance. At least for huge objects. I'm using a cylinder. I just split the cylinder somewhere to randomise results.

Here's your first mistake. Selecting more than a single face will avid a third selection from the program. Variable fillet will not show up on the radius type. This will coordinate the fillet by points. At least 3 selected in the screenshot.

Offset face will result in a Rikers error if you try to make it smaller.

Luckily I found a suggested solution for you. This is why I care what you determine to be true for the model. It's not just a single Fillet. And, the proposed process is computer driven here. Just think of all the coordination that happens here. Do a chamfer first. Mine is 10mm.

The edges will produce clean. And select the fillet tool. Change over to Full Round Fillet to prevent any difference. And select the newly created chamfered sides. Mine were had to select. The computer is pathological. But, the selection listen to input without problems. Or, mouse through input. And. Done.

Re: How to filet a shared edge of two components

Anonymous — Wed, 27 Dec 2023 08:11:55 GMT

Essentially what Mr. Tooling said. Can be done in fillet. Problems will occur.

Same process on the table.

Your problem is the jointed fillet.

You start with a chamfer. Mine is 10mm.

Then select. The Fillet tool. This time something different.

Rule fillet type. Rule, between faces/features. The newly created chamfer faces are the faces grouped in 1. The outside table sides are faces group 2. Here's the complication. The cord length for my 10mm chamfer is a 25 mm radius. I don't really know why. I'm pretty sure it's supposed to be 30. For 1:√(of: 10 by value of that 10/5 edition). Just think of Edison. In any case it looks something like this. Just a chamfer and fillet.

Re: How to filet a shared edge of two components

Anonymous — Wed, 27 Dec 2023 08:15:21 GMT

This is all until you attempt the same option to the inside.

Re: How to filet a shared edge of two components

simeyesee3d — Wed, 27 Dec 2023 16:14:57 GMT

I like the chamfer/fillet option you proposed. The idea I had works well for fillets on inside corners but wouldn't work in the situation you displayed with an outside corner. The chamfer/fillet option works well in that situation.