Saving Failure

It means that so far, you’re the only one that has had a negative impact, at least that I’m aware of. It could be that not very many people use step export or it could be that it’s working ok for others. I guarantee if it was a large scale problem I’d be hearing about it. Is this happening for all of your exports to step or only with particular models? For instance, if you make a very simple model, like a box, and export to step, does it still have the problem?

@tim this is the same technique that I wrote for saving 3dm files to network locations and couldn’t turn the feature on by default because of unknown failures for systems like Gianpietro’s.

We should probably key your file writing technique off of the same advanced setting as I am using.

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Hi @tim

thank you, first of all. To answer to your questions:

YES, it happens also with VERY simple geometries (i.e. a single BOX)


NO, it doesn’t happens with other formats I export frequently, like STL or OBJ (I didn’t test many other formats aside STP, STL and OBJ though)

OK. This is the YT issue to track this. I’ll start in on it today.

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Thank you @stevebaer , this would be a great help, again! These saving issues are a big big hassle, I reckon!

And @tim , I think I was not the only one with these kind of problems in saving 3dm files…and now I suppose not to be the only one facing the same problem in exporting STPs, sincerely.
The problem started with one of the last updates, by the way, so maybe (maybe!) there’s other people, experiencing the same behaviour, which did not reported it yet.

PS: thank you to you too @tim !

Hi everybody

I installed the RC 7.14 as suggested by @KelvinC in which WriteLocalTempFileWhenSaving is set to “false” by default. Now the error doesn’t appear anymore: the STP file is correctly saved to network drive position. Great work.

One (ok: two) last question(s): nobody of you guys (@KelvinC , @stevebaer, @pascal, etc) has an idea of why this two saving errors happen? And do they happen to some other people, or am I the only lucky one? In this last case I owe you much more beers…

Thank you again and have a good day to everybody.


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You are the only user we know of that has this issue. I’m assuming there are many other users out there that this could effect that we don’t hear from.

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Hi @stevebaer , thanks for the new SR. I will test it this month (I was away from the office for 2 weeks).

*Since 17 October, I tracked my errors more precisely: with writeLocalTempFileWhenSaving=true, I would sometimes fail to save on my local auxiliary drive. With writeLocalTempFileWhenSaving=false, I would sometimes fail to save on my server.
**During my support calls with less experienced staff, I saw the same ‘temporary file could not be renamed’ error pop up, thus confirming that it is happening on other workstations in our office (on the sister server). But settings were not changed on these workstations.

–Regarding the other save errors recently mentioned: I do not experience problems exporting to other formats.

Thanks again and I will report back in 30 days.

Today I had a save failure on the server, F:\Drive.

Version 7 SR12
(7.12.21313.6341, 2021-11-09)

Results of your Debug command TestLocalTempWriteDebug gave me:
Error found: MoveFileExW returned false (err code = 32)

Rhino 7 SR12 2021-11-9 (Rhino 7, 7.12.21313.06341, Git hash:master @ 5590153808223b57a9f41516a969fd949aa81bff)
License type: Commercial, build 2021-11-09
License details: LAN Zoo Network Node

Windows 10.0.19041 SR0.0 or greater (Physical RAM: 32Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA Quadro RTX 4000 (NVidia) Memory: 8GB, Driver date: 4-8-2021 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 462.31
> 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.
Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 10-28-2020 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- There are no monitors attached to this device!

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

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 4-8-2021
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8 GB

Rhino plugins that do not ship with Rhino
H:\Tools & Libraries\34 - Rhino\04_GH_SETUP\01_PLUGINS\Elefront (GH)\elefront421\ElefrontProperties.rhp “ElefrontProperties”
C:\ProgramData\McNeel\Rhinoceros\7.0\Plug-ins\Datasmith Rhino Exporter (d1fdc795-b334-4933-b680-088119cdc6bb)\DatasmithRhino7.rhp “Datasmith Exporter”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 7\Plug-ins\RPC.rhp “RPC”
C:\Program Files\Rhino 7\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Users\K.Hinz\AppData\Roaming\McNeel\Rhinoceros\7.0\Plug-ins\PanelingTools (6caed836-bc06-4ebc-b1fd-e10886a0dc94)\2018.12.17.906\PanelingTools.rhp “PanelingTools”
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7\Plug-ins\Alerter.rhp “Alerter”
C:\Program Files\Rhino 7\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\Walkabout.rhp “Walkabout”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\BlockEdit.rhp “BlockEdit” 7.12.21313.6341
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
C:\Users\K.Hinz\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\SectionTools\2019.7.29+584\SectionTools.rhp “SectionTools”

That error code resolves to

32 (0x20)
The process cannot access the file because it is being used by another process.

Was there some other program using the file you were trying to write to?

Yea, I saw that a few hours later.
The file was open on another workstation when I thought it had been closed; totally my mistake.

I’ll keep looking to isolate the occurrence.

Today I had another temp file cannot be renamed error. And TestLocalTempWriteDebug also returned err code = 32.

This time, I did not have my file opened on a second workstation.
I will keep looking and report again.