topic Re: Create Saddle for Dome Intersecting Cylinder in Fusion Support Forum

Create Saddle for Dome Intersecting Cylinder

jackmcintyre231 — Fri, 24 Nov 2023 10:36:59 GMT

Hello,

I am trying to create a flared saddle at the base of a cylindrical dome which intersects another cylinder. The flare needs to result in a circular intersection when viewed from above. Can anyone propose how to go about this. I have attached a screenshot of the project bodies as well as a reference photograph of what I am trying to replicate. Any help would be appreciated.

Re: Create Saddle for Dome Intersecting Cylinder

g-andresen — Fri, 24 Nov 2023 11:51:00 GMT

Hi,

try this

(view in My Videos)

günther

Re: Create Saddle for Dome Intersecting Cylinder

davebYYPCU — Fri, 24 Nov 2023 11:51:29 GMT

Short answer, I would

cut the yellow body just below the bottom banding. Hide / remove the lower section.

Extrude cut the top view hole in the pink body at correct diameter.

Surface > Loft select the bottom face of the yellow, and the edge of the hole in the pink, set both selections to Tangent.

Will give you a smooth transitional curve ring, without the thickened lip at the pink body.

If suitable all done, You can decide how to make the 3 bodies back into one. I would use Boundary fill after the lip,

if you want the fading lip as well, it’s more complicated, needs your input for sizes etc.

Might help….

Re: Create Saddle for Dome Intersecting Cylinder

TheCADWhisperer — Fri, 24 Nov 2023 11:53:19 GMT

Examples of this very design have been posted here in the past.

I search (perhaps in the Design area of the Fusion forum) might turn up prior discussions.

Re: Create Saddle for Dome Intersecting Cylinder

davebYYPCU — Fri, 24 Nov 2023 12:13:46 GMT

You didn’t incorporate the lip shape in the rails?

Last sketch, both lower spline handles vertical, so easy.

Might help…..

Re: Create Saddle for Dome Intersecting Cylinder

g-andresen — Fri, 24 Nov 2023 13:04:49 GMT

Hi,

it can also be simpler

(view in My Videos)

günther

Re: Create Saddle for Dome Intersecting Cylinder

jackmcintyre231 — Fri, 24 Nov 2023 22:09:17 GMT

Perfect that’s exactly what I needed, thanks.