Export Model Block Definition broken?

Can someone with the latest Rhino 9 WIP please check whether the Export Model Block Definition component works? I’m having trouble exporting with a definition that worked two weeks ago.

Yes, I am also seeing some problems.

But to make sure we have this covered:

  1. Can you give me an example?
  2. file type?
  3. Are you selecting existing blocks, etc….

I will start putting together a YT issue to track it.

Thanks @scottd

Here’s a simple example:

I tried *.obj, *.stl, *.step, *.stp and *.ply. which is not supported.

export-fail.gh (11.5 KB)

System Info

Rhino 9 SR0 2025-9-23 (Rhino WIP, 9.0.25266.10145, Git hash:master @ 20b4067c1882a571b5304975d8b2385b4678fada)
License type: Commercial, build 2025-09-23
License details: Cloud Zoo
Expires on: 2025-11-07

Windows 11 (10.0.26100 SR0.0) or greater (Physical RAM: 128GB)
.NET 9.0.9

Computer platform: DESKTOP

Standard graphics configuration using DirectX
Primary display: NVIDIA RTX A5000 (NVidia) Memory: 24GB, Driver date: 8-21-2025 (M-D-Y). DirectX(11)
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
- Secondary monitor attached to adapter port #1

Secondary graphics devices.
NVIDIA Quadro K2200 (NVidia) Memory: 4GB, Driver date: 8-21-2025 (M-D-Y).
> Accelerated graphics device with 4 adapter port(s)
- There are no monitors attached to this device!

DirectX Settings
Safe mode: Off

OpenBLAS: OpenBLAS 0.3.29 DYNAMIC_ARCH NO_AFFINITY Zen MAX_THREADS=64.

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp “Commands” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoBonusTools.rhp “Rhino Bonus Tools”
C:\Program Files\Rhino 9 WIP\Plug-ins\AnimationTools.rhp “AnimationTools”
C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp “UpdatesAndStatistics” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\import_STEP.rhp “STEP Import”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 9.0.25266.10145
C:\Program Files\Rhino 9 WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”

Thanks, we will take a look.

Without getting fancy, I tried *.3DM and see problems.

When will this be fixed?

It has been fixed

I am seeing the same behavior today, this time in Rhino 8, in a definition that was working just fine last week. It’s not letting me save a file using the Export Model Block Definition. I am using Rhino 8 SR24 (8.24.25281.15001, 2025-10-08).

exportTest.gh (10.5 KB)

Simple example attached. Any idea what I am doing wrong?

Does the folder exist?

And maybe you need to update.

It works here in 8.25.25294

System Info

Rhino 8 SR25 2025-10-21 (Rhino 8, 8.25.25294.11001, Git hash:master @ dbd34d09714449d20e5a207d4433f62e2963f282)
License type: Commercial, build 2025-10-21
License details: Cloud Zoo

Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 128GB)
.NET 8.0.21

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA RTX A5000 (NVidia) Memory: 24GB, Driver date: 9-22-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 581.42
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
- Secondary monitor attached to adapter port #1

Secondary graphics devices.
NVIDIA Quadro K2200 (NVidia) Memory: 4GB, Driver date: 9-22-2025 (M-D-Y).
> Accelerated graphics device with 4 adapter port(s)
- There are no monitors attached to this device!

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
GPU Tessellation is: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 9-22-2025
Driver Version: 32.0.15.8142
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 24564 MB

Rhino plugins that do not ship with Rhino
C:\Users\martinsiegrist\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\NVIDIADenoiser\0.4.3\NVIDIADenoiser.Windows.rhp “NVIDIADenoiser.Windows” 0.4.3.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.25.25294.11001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”

The folder does exist (I tried a few different filepaths just to make sure), but updating fixed it!

I’m not sure if it was the process of updating repaired something, or if there’s a fix in the latest version, but either way it’s working for me in 8.25.25294. Thanks!

As far as I understand, there was a fix in the latest update.