Sphere

[Anonymous]

Is there an easy way to draw a sphere in Revit?

[Anonymous]

Yes, use the create-in-place family tool to create an extruded solid form cube the diameter/radius of the sphere you want, then use a void form sweep or revolve to remove the cube form to a sphere.

Another way is to use the create-in-place family to create a revolve solid form as a sphere or two halfs then join them together.

Mel Persin, AIA
AEC Technology Consultant
Technology to Visualize and Realize Solutions
Modeling the Future/Drafting the Past

[Anonymous]

Why all the extra geometry? Just use a revolve of a semi-circle around 360
degrees. You shouldne't need two objects...

wrote in message news:5886954@discussion.autodesk.com...
Yes, use the create-in-place family tool to create an extruded solid form
cube the diameter/radius of the sphere you want, then use a void form sweep
or revolve to remove the cube form to a sphere.

Another way is to use the create-in-place family to create a revolve solid
form as a sphere or two halfs then join them together.

Mel Persin, AIA
AEC Technology Consultant
Technology to Visualize and Realize Solutions
Modeling the Future/Drafting the Past

[gsucci]

Why the extra geometry?

because some genius thought it was a goods idea to remove the modeling tools from the mass editor and replace them with "Create Form".... maybe?

I forgot how to make spheres and spheroids as well... still trying....

regarsd

G

[gsucci]

By the way,

to make a spheroid in the mass editor (no 3D tools like extrude or revolve), you need to build a flat, closed surface and draw a segment.  Select the shape and the segment and "Create Form" will revolve the shape using the segment as axis of revolve... most of the times.

regards

g

[ToanDN · Accepted solution]

1. You responded to a topic created before the Mass tool even exists.

2. 3D modelling in mass environment is much more versatile than in the regular 3d environment.  To you question,dDraw a circle and create form, then you can choose either a Sphere or a Cylinder as the result.

[gsucci]

True, I thought the thread was from 2018... not 2008.

Irrelevant, though: in Revit 2021 in-place mass editor, the Create Form no longer make spheres, using a circle. See screen shots: first option is a cylinder, second option... a circle?

must be a bug... it works in the family editor.

thanks

regards

G

PS: "Create Form" was a good implementation, but removing perfectly fine tools, at the core of Revit sketch based modeling, was completely unnecessary.  Don't fix it if it is not broken.

[martijn_pater]

So... guess the complete answer is: use Revit 2020 or before, draw a circle in mass editor and create form... ^^

But that's weird that it is no longer/not working in rvt21, guess they figured you don't really build a sphere that often...

[ToanDN]

Because there is a sphere mass as a OOTB family.

[syman2000]

The trick is you have to draw half semi-circle and a line. Select both line and semi-circle and create form. You will get sphere as a result.

[martijn_pater]

@ToanDN Never used it, and I don't think I will need to but you never know. Also, haven't done the 2021 update stuck with 2020 a while, but I will draw a sphere first thing when I do...^^

[bin]

You can do it without that line.

[barthbradley]

There's more than one way to skin a cat...

😉

[RobDraw]

---

@barthbradley wrote:

There's more than one way to skin a cat...

---

But the topic is a sphere, not a cat without skin.

[martijn_pater]

One might mistake the one for the other though...

[Joshua_Myers]

It's 2022. I've been using Revit since 2005. The conceptual massing tools are still obnoxious to me. It didn't need to be this backwards from the regular form making tools. Revolve makes sense, like just about every other modeling program. This semi-circle with the line drawn away from the semi-circle (not touching the ends of the semi-circle) and then "create form" is vague and not intuitive at best.

[RobDraw]

We all know what year it is.

Your thoughts belong in the product feedback page. This is a user forum. 

[ToanDN]

See post 9.

[S3964143]

where would find the OOTB family?

[Alfredo_Medina]

As ToanDN says, there is already a Sphere family. It is in the Mass folder.

Simply do Insert > Load Autodesk Family > search for Sphere, select the sphere mass and load. Then, place it in the project, and adjust its parameters as needed.