topic Re: Multiple chamfers bending edge in Fusion Design, Validate & Document Forum

Multiple chamfers bending edge

jan.gladines — Mon, 21 Aug 2017 00:01:02 GMT

Say I create a box, fillet the corners and apply a chamfer to the top I get this

with a nice and smooth chamfer across the edge. However, I want the chamfer of the vertical lines to be angled differently and have a different distance. When I do this however, this is the result.

Does anyone have any idea how to fix this? I want my result to look like this edge

I really hope someone can help me out here 😕 Have a nice day!!

Re: Multiple chamfers bending edge

davebYYPCU — Mon, 21 Aug 2017 00:20:11 GMT

For the keyboard style,

create in two stages, box with fillet for the lower section, use offset plane and a new sketch for the top surface,

then Loft > Join, the higher section,

Might help....

Re: Multiple chamfers bending edge

TrippyLighting — Mon, 21 Aug 2017 02:08:50 GMT

If whatI show in the screenshot would be acceptable, you can also simply change the fillet type from constant to chord.

Re: Multiple chamfers bending edge

patilsm — Mon, 21 Aug 2017 08:22:39 GMT

Hi,

As suggested by @davebYYPCU, you can use Loft for key board creation.

I tried and its gets display as shown below

Re: Multiple chamfers bending edge

SaeedHamza — Mon, 21 Aug 2017 08:47:37 GMT

@TrippyLighting Actually 2 fillets are better, Constant radius and Variable radius

Here is a screenshot of the result :

Regards

Saeed

Re: Multiple chamfers bending edge

jan.gladines — Mon, 21 Aug 2017 09:39:06 GMT

I have tried a loft but didn't get the result I wanted, care to share the .f3d file?

Also, would using a loft be a valuable option when I'm planning on sending this to a CNC?

Re: Multiple chamfers bending edge

davebYYPCU — Mon, 21 Aug 2017 09:50:34 GMT

Not the result you want - can you give details?

To CNC - should be fine,

An interesting statement.

Re: Multiple chamfers bending edge

SaeedHamza — Mon, 21 Aug 2017 09:59:33 GMT

@jan.gladines

Is the picture above in my previous post not the desired result?

Regards

Saeed

Re: Multiple chamfers bending edge

jan.gladines — Mon, 21 Aug 2017 10:21:51 GMT

Looking at the screenshot you still have the same chamfer on all four edges no? I want to have a different angled ones on the top/bottom and left/right.

Re: Multiple chamfers bending edge

TrippyLighting — Mon, 21 Aug 2017 10:24:19 GMT

Correct!

In that case only a loft will do. If that does not work for you, then please create a screencast so we can see where that fails to produce the results you are looking for.

Re: Multiple chamfers bending edge

SaeedHamza — Mon, 21 Aug 2017 10:37:20 GMT

Oh I see, yes this is clearly a loft with the fillets made in the sketch

Re: Multiple chamfers bending edge

jan.gladines — Mon, 21 Aug 2017 11:26:33 GMT

Using a loft made for a lot of imperfections. I use a 6mm fillet on the bottom part and a 3mm on the top part.

Re: Multiple chamfers bending edge

TrippyLighting — Mon, 21 Aug 2017 11:29:21 GMT

Please share your model. A normal solid loft usually does not look like that unless the twist control handles are in the wrong spot, which is some of what these screenshots suggest.

Re: Multiple chamfers bending edge

davebYYPCU — Mon, 21 Aug 2017 11:32:11 GMT

The first pic has no fillet in the corner of the top profile.

Re: Multiple chamfers bending edge

jan.gladines — Mon, 21 Aug 2017 11:46:14 GMT

Here you go 🙂

Re: Multiple chamfers bending edge

SaeedHamza — Mon, 21 Aug 2017 17:47:37 GMT

This might be a bug, check these pictures below, they are for the same part, but one 1 zoomed in and the other is zoomed out

As for the transitions at the corners, they are just fine

Re: Multiple chamfers bending edge

TrippyLighting — Mon, 21 Aug 2017 17:51:51 GMT

@SaeedHamza @jan.gladines

There's no bug 😉

Just set your design detail control to fixed/high and these visual artifacts are gone.

Re: Multiple chamfers bending edge

SaeedHamza — Mon, 21 Aug 2017 18:20:04 GMT

Oh I see! that's something new for me, does this command remove all kinds of visual issues like this one?

And what good is it for?

Re: Multiple chamfers bending edge

SaeedHamza — Mon, 21 Aug 2017 18:21:33 GMT

@TrippyLighting

That means there is nothing wrong with the model, did you check it?

Re: Multiple chamfers bending edge

TrippyLighting — Mon, 21 Aug 2017 18:54:48 GMT

@SaeedHamza it removes tessellation artifacts. Fusion 360's LOD (level of detail) algorithm dynamically determines how fine to triangulter objects for viewing in the viewport.

Thats' the adaptive setting in that dialogue. However, for rendering one often needs to override this in oder to remove visible faceting. Particularly for objects with high aspect ratio e.g long and thin, or for shots with short focal length.

The design is fine and the twist control hande is where it should be.