Rhino

ApplicationRobert McNeel & Associates

Also called rhino 3d, rhinoceros, mcneel rhino

Robert McNeel & AssociatesCreative

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

Minimum system requirements
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.

Installed processes
Rhino.exe	Main Windows executable

Startup components

Rhino does not need to start with Windows.

File locations

Common Rhino locations
Typical install	C:\Program Files\Rhino 8\

File formats

3DMSTEPIGESDWG

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.

Official contacts
Download	www.rhino3d.com/download/ Official installer or vendor page
Help	www.rhino3d.com/support/ Vendor support
Official site	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

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

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.

Rhino official site · Vendor product page
Rhino help · Vendor support
Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.

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