How to model basket handle arch?

[carmanfer]

Hi, I am trying to make an oval arch (called basked handle arch?) like this:

This is my take on it but the faces do not have the same area:

I took a circle, scaled it so that it became an oval and then filled and insetted. Then deleted the bottom faces and extruded to do the legs.

Any better options?

[LMalachi (Lawson)]

Hello, there are many ways you can do this, and the route you took isn’t wrong. The route I would take would be something like this:
How To Make An Arch In Blender (youtube.com)
I would then play with the smoothness to get the oval shape.
Somebody might have a more efficient method though.

[Okidoki]

You might want to have a look here:

Creating a basket or three centered arch

Hi I wrote a small addon to create a basket arch (a.k.a. three centered arch). It is a very rudimentary tool I used for some visualizations but it may come in handy for someone else as well. Enjoy, – Michel.

[RSEhlers]

I just use the spin tool on a cube, then adjust and scale to fit together…

[Okidoki]

…well… there is more than a semicircle used as an arch

Circular Based Arches – Part 2: Three-Centered Arches | THISisCarpentry

…but then using a half circle, selecting the top point and moving it downward with proportional editing with an bigger radio (~1.66) as the circle (1) … might give some similar result…
…because if not for architectural visualization or realistic simulation…

If it look good… then it is good…

[RSEhlers]

Very true!
But also scaling is your friend…

[Okidoki]

Nitpicking again … but then it’s “only” an ellipse…

…as i mentioned… it depends… if this is not the hero asset…

[RSEhlers]

I don’t want to get off-topic, too much. Or hijack the thread, but there was this discussion on a Broken arch in Geometry Nodes, that could be used to re-create this type of arch …

B3.2: Broken arches modeling

Hello ! So I find a way to manage something but it’s a very different approach, you’ll tell me if that can work for you ! It’s probably possible to build it the way it’s originally build, I suppose based on the 4 points you made, but TBH trigonometry isn’t my strong point so I found a different way. The blend : test_voutes2.blend (3.7 MB) A rectangle as input shape and the generated arches : [image] How it works is quite simple, we use a mesh to point set to edge to have one point per ed…

[carmanfer]

That’s how I did it except for the spin tool, I just made a circle, filled it, and insetted. Then extruded to make the 2d figure 3d. And then scaled like you have done. But if you look closely you have distortion. The center is thinner than the laterals. I wanted a way to keep proportions of each “stone”.

[DNorman]

Often (in your reference as-well) with stone arches, the keystone (the one at the top middle) is a bit longer than the others. In the reference the other stones get larger as you go down the arch.

[Matakani]

Another method - as no one else mentioned it…
Add a curve, in edit mode duplicate it.
Edit one to the lower arch and the other to the top arch.
Changing the curve to 2D will auto fill it.
Check the curve resolution. About 37 matches your top image…

… before you Object Menu > Convert > Mesh.

[kkar]

Use Sverchok or Geometry Nodes for better parametric control.

[RSEhlers]

I can only refer you to your original image and how it was constructed…