topic Re: Conforming a 3d object to another 3d surface. in Fusion Design, Validate & Document Forum

Conforming a 3d object to another 3d surface.

Anonymous — Mon, 07 Sep 2020 21:21:31 GMT

Hello.

I want to make a flat rectangle that has been corrugated into a 3D wave pattern and then I want to have another flat rectangle that has a more complex corrugated pattern applied to it and I want the more complex pattern to be merged into the first pattern but I want the complex pattern to "ride" the contours of the waves on the first pattern.

Is there a method of making the second pattern merge with and conform to the "waves" of the first pattern?

The geometry would be very difficult to make from scratch so I'm hoping I could just make both patterns individually before merging them.

Thanks.

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Mon, 07 Sep 2020 21:26:14 GMT

It would be great if you make a hand sketch even of your intention. But I would say you could probably make the corrugated patern using a sheet metal extrusion unfold the pattern and then create a sub patern! that can be really crazy - I would love to see a sketch of what you intend to make it will make it much easier to come up with a plan 🙂

Re: Conforming a 3d object to another 3d surface.

Anonymous — Mon, 07 Sep 2020 23:27:26 GMT

Sorry I'll make myself more clear.

I want to imprint this pattern

onto this pattern

and I want the first pattern to follow the contours of the second pattern.

Re: Conforming a 3d object to another 3d surface.

Anonymous — Mon, 07 Sep 2020 23:33:51 GMT

I'd also like to place both patterns onto a cylinder and have them follow the contour of the cylinder so the cylinder is embossed with the patterns.

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Mon, 07 Sep 2020 23:47:22 GMT

You can use the new emboss tool! there is a great video I'll try to find it - showing how to make a knurled pattern using the emboss tool + here is a quick try using the sheet metal but it is not as perpendicular

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Tue, 08 Sep 2020 00:04:15 GMT

The difficulty will be the calculation to make something appear as waves on waves take a look:

Re: Conforming a 3d object to another 3d surface.

jhackney1972 — Tue, 08 Sep 2020 00:23:03 GMT

My model is not "formed" but constructed with a little math to get the angles right. I left the cylinder and the layers of the pattern as separate bodies. You can combine them into one unit using the combine command if desired. You can follow the time line to see how it is done. Model is attached.

Re: Conforming a 3d object to another 3d surface.

jhackney1972 — Tue, 08 Sep 2020 00:26:49 GMT

I forgot the screen capture of the model. Here it is. You can download it from my previous post.

Re: Conforming a 3d object to another 3d surface.

Anonymous — Tue, 08 Sep 2020 01:43:34 GMT

I'm having a difficult time figuring out how you did the proper angling and copy pasting of the wave protrusions against the cylinder.

Re: Conforming a 3d object to another 3d surface.

TrippyLighting — Tue, 08 Sep 2020 04:47:06 GMT

I am watching with interest how this develops.

What @YoavFriedlander ran into is that the surface pattern distorts. It is stretched on top of the waves and as it travels down into The valley it is compressed. That will be difficult to eliminate. It might visually be less obvious if the surface pattern is a lot smaller (higher in frequency, lower in amplitude) than the wave surface it is supposed to follow.

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Tue, 08 Sep 2020 14:01:39 GMT

@TrippyLighting yes - I am still trying to figure out if such symmetry can exist - I bet there is a way and my brain can't overcome the obstacle - something about the above cylinder in previous comment by @jhackney1972 gives me hope but I suspect that the problem will start in the transition between outer facing curve and inner facing curve. I made a more elaborate demonstration of the problem you mentioned previously via the Sheet metal environment:

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Tue, 08 Sep 2020 14:58:31 GMT

Here is a progress based on @jhackney1972 cylinder

The main issue that if I start with a circle divided to 36 sections and create 36 tangent circles around it the inner circle creates an angle of 12.1 degrees vs. 10deg on the outside which means it looks nice but it is not symmetric!:) I think my next step is to figure out the circle that connects the center of all circles! maybe there will be a solve to the tension ?

It looks nice - but it is not absolute correct

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Tue, 08 Sep 2020 15:25:43 GMT

Also I realize it is better to use uneven number of circles ! which even makes life harder 😕

Re: Conforming a 3d object to another 3d surface.

jhackney1972 — Tue, 08 Sep 2020 16:03:08 GMT

Take a look at the Screencast. The angle for the original sketch is 360 degrees divided by the number of instances in my circular pattern.

Re: Conforming a 3d object to another 3d surface.

jhackney1972 — Tue, 08 Sep 2020 16:05:52 GMT

I would really enjoy getting into some of your models to see what you are thinking and creating but you have a habit or posting screen captures but no attached models. I am sure the original post would like to see your models attempts also.

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Tue, 08 Sep 2020 16:09:34 GMT

@jhackney1972 do you think you can find a way to do this process with even half circles going in the wave form? Your method is way more clean than what I attempted doing!

Re: Conforming a 3d object to another 3d surface.

YoavFriedlander — Tue, 08 Sep 2020 16:13:12 GMT

@jhackney1972 I am sorry for that! I didn't want to spam with things that I wasn't sure answered the question but you are correct - I should do more screencasts and share F3D files - here is the one from the latest screenshots:

Re: Conforming a 3d object to another 3d surface.

jhackney1972 — Tue, 08 Sep 2020 17:21:29 GMT

Here is the same pattern created on a sheet metal curve. It will unfold and refold using the timeline and it will even create a flat pattern with a big red box in the timeline. Plus it is a pain to do since you must use Extrude - Join for each row which means you have to duplicate your pattern sketch over and over. Model attached.

Re: Conforming a 3d object to another 3d surface.

Anonymous — Thu, 10 Sep 2020 02:50:48 GMT

I've been trying to do what jhackney1972 did but I continuously fail.

I'm trying to get the waves to be 0.5mm in height, length, and width and I want them in rows of 40 on a 4 inch cylinder but I can never get the waves to line up properly.

Clearly my math is failing me somewhere.

There is a gap between each one and I'm a bit clueless on where I went wrong.

Re: Conforming a 3d object to another 3d surface.

jhackney1972 — Thu, 10 Sep 2020 15:01:48 GMT

The dimensions you give do not seem correct. A 0.5 mm sketch is an extremely small sketch plus you are mixing units when you say your cylinder is 4 in, diameter or radius you did not say, The measure shown in your screen capture is 13.21 diameter which does not match anything. In the sketch below, which is one segment of my model, note the bounding lines go to center. I also originally dimensioned the curves at 1" to originally get a general size but then removed it to let the segment angle control their size. All the curves have an equal constraint applied. The construction circle is just a floating guide circle for the curve centers. The angle of the segment is the number of my, later to be applied, circular pattern of 21 divided into 360. If you attach your model, the forum users can help you out for sure.