# Rhino

Application: Robert McNeel & Associates

Also called rhino 3d, rhinoceros, mcneel rhino

Robert McNeel & Associates, Creative

NURBS modeling used in product design. Rhino.exe is the process. It is not AutoCAD.

## What you need to know

Rhino is NURBS product design. AutoCAD is DWG drafting.

Rhino.exe stores models in .3dm. acad.exe stores drawings in DWG. Grasshopper lives here, not in AutoCAD.

- **What is it?**: NURBS modeling

  **Still current?**: Yes, see Current status

  **Official download?**: Use the vendor link in this article

Feex says

If Rhino.exe is the process, that is McNeel Rhino, not AutoCAD. I would not hunt acad.exe to explain a .3dm file.

## What is Rhino?

Rhino is a NURBS modeling application. Documents live in .3dm files. The Windows executable is Rhino.exe.

## If you have never used it

Rhino is McNeel's NURBS modeler for product design. Rhino.exe is the process. It is not AutoCAD. DWG drafting is AutoCAD. A .3dm file is Rhino. Download from rhino3d.com/download. Grasshopper is the visual-script sibling.

## What is it used for?

**NURBS surfaces**

Product and jewelry forms. AutoCAD drafts DWG. This is freeform NURBS.

**Grasshopper**

Visual scripts. That plugin is Rhino, not an AutoCAD LISP routine.

**Export to CAD/CAM**

STEP and IGES. DWG is possible. The working file is still .3dm.

## Who is it for?

- Product designers
- People running Grasshopper
- Anyone who opened AutoCAD looking for NURBS

## Current status

Rhino (1998) is a current nurbs modeling from Robert McNeel & Associates. The vendor still points Windows users at https://www.rhino3d.com/download/.

## How old is it?

McNeel shipped Rhinoceros in 1998. AutoCAD is the 1982 DWG standard. Current Rhino is a perpetual Windows license with a service-release train.

## Versions

Major channels first. Exact build numbers are not all verified here.

Rhino 8

Rhino 7

## System requirements

Values follow the publisher's public guidance. Workload still changes the real need.

### Minimum

| Operating system | A current supported Windows 10 or Windows 11 release, per the vendor |
| ---------------- | -------------------------------------------------------------------- |
| RAM              | 8 GB class, per McNeel. Grasshopper definitions want more            |

## Resource profile

- **CPU demand**: Follows what you open inside the app

  **RAM demand**: Follows documents, tabs, or libraries

## Installed processes

These executables belong to this product when it is installed.

| Rhino.exe | Main Windows executable |
| --------- | ----------------------- |

## Startup components

Rhino does not need to start with Windows.

## File locations

| Typical install | C:\Program Files\Rhino 8\\ |
| --------------- | -------------------------- |

## File formats

3DM, STEP, IGES, DWG

## Common problems

### Expected AutoCAD command line

Rhino has a command line with different names. Type what Rhino documents.

### Grasshopper missing

Enable the Grasshopper plugin. It is not an AutoCAD toolset.

## Getting unstuck

### Confirm Rhino.exe

Program Files\Rhino \<version> is the app. acad.exe is AutoCAD.

### Install from rhino3d.com/download

A Rhino.exe in Downloads next to a crack is not McNeel.

### Reset the Rhino scheme

McNeel documents a settings reset. This is not AutoCAD profiles.

## Alternatives

AutoCAD, Fusion 360, and SOLIDWORKS overlap at the edges. AutoCAD does not replace NURBS product work.

## Official help and downloads

Start with the vendor. Random exe sites are not a support channel.

| Download      | [www.rhino3d.com/download/ ](https://www.rhino3d.com/download/)Official installer or vendor page |
| ------------- | ------------------------------------------------------------------------------------------------ |
| Help          | [www.rhino3d.com/support/ ](https://www.rhino3d.com/support/)Vendor support                      |
| Official site | [www.rhino3d.com/ ](https://www.rhino3d.com/)Start here, not a random exe host                   |

## Related hardware

McNeel lists 64-bit Windows and 8 GB RAM class machines for recent Rhino. Heavy Grasshopper wants more.

## Technical details

Technical details

Vendor version numbers change. This article does not pin a build.

## Related

These entities connect to this article. Type is shown on every link.

[AutoCAD: Application](https://feex.it/wiki/software/autocad)[How to read Task Manager: Guide](https://feex.it/wiki/software/system/how-to-read-task-manager)

## Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. [How we research](https://feex.it/wiki/research).

- [Rhino official site ](https://www.rhino3d.com/)· Vendor product page
- [Rhino help ](https://www.rhino3d.com/support/)· Vendor support
- [Foxhole process map ](https://foxhole.feex.it/)· First-party samples on Windows PCs. Not a lab benchmark.

## Was this article useful?

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Quick facts

The short identity of this page. Specs, sources, and the full story stay in the article.

- **Developer**: Robert McNeel & Associates

  **Category**: NURBS modeling

  **Process**: Rhino.exe

  **License**: Perpetual license, per McNeel

  **First released**: 1998

  **Official site**: [rhino3d.com](https://www.rhino3d.com/)

  **Mapped by Feex**: Seen on Windows PCs in Foxhole

Feex Reviewed: Last verified August 2026

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Source: [Canonical Feex Wiki page](https://feex.it/wiki/software/rhino/)

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