Surface projection on curved, slanted surface?

[tramtin]

I've projected a sketch on to a slanted, curved surface and I want to depress that design. 

Am I right in thinking that this is impossible to do with Fusion? Is there a workaround?

Extruding the original sketch on to the surface would not work for me, as the indentation would be shallow towards the edge but much deeper towards the center.

[tramtin]

I just noticed that when I combine my rivets with the body, the shell instruction fails. Combining the rivets after shelling works though. Should I re-do the rivets with your technique?

For the grove on the rim I thought to create a circle, revolve it 360 degrees and then cut combine it with the body.

That area of the body should be more curved though, instead of the straight line it is now. Which tool should I use to create that curve?

[TheCADWhisperer]

@tramtin 

I have been in the process of creating a video but have not had time to edit it yet.

I am still trying to figure out @jackswills004 technique.

I checked @jackswills004 responses in multiple forums and they all appear to be AI generated nonsense.

@jackswills004 

Why won't you elaborate on your technique?

[TheCADWhisperer]

@tramtin 

Next we will tackle these features.

[tramtin]

Thanks a lot, that's great!

I cleaned up Sketch1. I can see the advantage of your way of doing the rivets, but I hope you don't see a problem if I leave my version of the rivets in the design for now, since it seems to work. If they'll become a problem later on, I'll change it.

I noticed that in your video the picture goes blank around 6 minutes from the end and then cuts into the middle of the explanation of doing the side indentations with the two rivets. Maybe this video was supposed to end at the explanation of the rivets?

Also, I discovered that I made a measurement error. The little line in Sketch1 that I marked in red on the attached picture is supposed to be 6mm, not 3mm. Is there a way to change this, without it messing up everything else we've done so far?

[TheCADWhisperer]

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@tramtin wrote:

Maybe this video was supposed to end at the explanation of the rivets?

Also, I discovered that I made a measurement error. The little line in Sketch1 that I marked in red on the attached picture is supposed to be 6mm, not 3mm. Is there a way to change this, without it messing up everything else we've done so far?

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Oops, I left part of the next video that I meant to delete.

I will have to create a video on how to fix broken stuff after changing the 3mm to 6mm.

[tramtin]

While that would be very interesting and instructive, don't worry about it if it takes too much time. You've already spent so much time on this, for which I'm so grateful!

[tramtin]

I've used the time to create a new version of the design from scratch, to correct and tweak the measurements, and also to learn more about the techniques you used.

I also tried to create the rivets according to your method, but I ran into two issues:

First, after having created the first rivet, the shell command does not work anymore with my desired wall thickness (1mm). It does work with 2mm, but that's too thick for me. As a work around, I created the rivets after the shell command (1mm).

The bigger problem is with the offset plane (in your video at around 8:00 minutes): You created the plane based one of the faces but then moved it down to go through the center of the sphere. The plane is now no longer going through the center point of the revolved surface though, so the patterned rivets towards the centre are noticeably further away from the wall. Can you think of a different method to create a line which goes through the center?

[tramtin]

I'm attaching the file of the new design, which got up to the creation of said plane.

[TheCADWhisperer]

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@tramtin wrote:

The plane is now no longer going through the center point of the revolved surface though, so the patterned rivets towards the centre are noticeably further away from the wall. 

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It shouldn't go through the center of the revolution.  

It must be parallel to the side face of the indentation in order for the rivets to be parallel to that face.

Go the next step and create the Rectangular Pattern of the Rivets and show that result.

[tramtin]

I found edges to follow which gave me a satisfactory result. I only had to do a "forbidden" move on one of the rivets. Hopefully that's ok.

I also went ahead and tried to do a more rounded rim, so I swapped the straight line for a 3 point spline. In order to make the design full constrained, I used "Fixed" from the constrains menu, and the design is now black and has its lock. Is that the way to do it?

So the only missing items are the four indentations with two rivets inside. 

Also, in your message 34 you noted an undercut, which you said can be fixed. Could you tell me how?