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rgelb

Why does Cura relentlessly try to create a file in a directory that does not exist?

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For whatever reason, Cura (even when it's not doing anything and is sitting idle in the background) relentlessly tries to create a file in the C:\Windows\CSC\v2.0.6\namespace\RT-N56U.

Directory C:\Windows\CSC\v2.0.6\namespace does exist but RT-N56U folder does not. \\RT-N56U\TwoTB also happens to be a share that I am accessing (mapped to the Z:\ drive).

Why does Cura need to create a file there? And it does so relentlessly, over and over again. My computer physically slows down because of it and File/Open operation on Cura is so slow (probably because of this).

5a33413fe4b13_2017-11-2615_54_17-ProcessMonitor-Sysinternals_www.sysinternals_com.thumb.png.34a068b7a9cbb1bbb94332a19abc2c1a.png

5a33413fe4b13_2017-11-2615_54_17-ProcessMonitor-Sysinternals_www.sysinternals_com.thumb.png.34a068b7a9cbb1bbb94332a19abc2c1a.png

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As i never heard of the Windows\CSC combi before

Yes, it's offline files and I've turned it off.  Still, Cura beats on a network mapped drive I have every 5 seconds.   Note in the image:

5a334141e892a_27-11-201710-13.thumb.png.b49fc13b9b1fca08d189511b8beeca62.png

I did figure it out with help of some folks.  It's the "Removable Drive Output Device Plugin".  https://github.com/Ultimaker/Cura/blob/3.1/plugins/RemovableDriveOutputDevice/WindowsRemovableDrivePlugin.py#L50

The implementation has some issues:  

  1. It loops through all the drives.  It should only be looping removable drives. There is a SO question about this.
  2. And it shouldn't be looping at all.  The app should register for notification of insertion/removal of USB devices to see if removable drives are present.
    I did this several years ago to detect insertion/removal of USB headphones and the method was pretty reliable.  I would contribute the code but it was in C#

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