Machine Disconnect when Loading G-Code File

CNC Machines Shapeoko Pro
1

After initializing Shapeoko Pro, I load the G-Code file (Vectric Aspire saved w/ Shapeoko PP) & Carbide Motion (latest version) disconnects from the machine. When I re-initialize I see the file I tried to load already present. I ran two 20 minute test cuts with the vac and everything was fine.

Does anyone else have this issue? In my case, the controller card is brand new yet I’ve had 2 out of 6 file load attempts disconnect. Normally this is blamed on interference from the vac or the router, but both were off and the vac (Festool w/anti-static hose) was not even connected. I’m using the two-choke USB cable and a USB isolator recommended by C3D.

Even though these two test cuts ran, it’s not encouraging to think about putting expensive wood on the machine for a two hour carve when the controller card can’t reliably load a text file.

Anyone experience this and (hopefully!) have a solution?

3

It should not be possible to disconnect from the machine and then see a file already loaded when you reconnect. Which is not to sat that it cannot happen, but that’s not a behavior that we’ve ever seen. So, just to confirm, exactly what do you mean by “disconnect”?

And, can you upload the file here?

4

Sounds like you are having an OS (Operating System) problem. Maybe a memory issue (running out of memory) or something in the OS is failing. If in Windows open task manager and keep it open to see if you can spot any problems when loading your file.

5

This has happened to me on more than one occasion. Now that someone else is reporting issues I’ll see if I can come up with a reliable reproducer.

IIRC the behavior is something like:

  1. Turn machine
  2. Initialize machine
  3. Load g-code file (I can’t remember if it gets past the preview screen, I think it does)
  4. Machine unitializes for unknown reason
  5. Re-initialize machine
  6. previously loaded g-code file is already present
  7. Job can be started (note the we did not load the g-code file for a second time)
  8. Smooth sailing from here
6

Hello. Thank you for responding.

Here is a video of the problem.

I tried to upload the file but it appears the forum does not allow upload of .gcode files.

Upload of G-Code File Extension Not Possible
Upload of G-Code File Extension Not Possible849×197 4.88 KB

Exactly as @HeuristicBishop describes in their comment:

  1. Open CM 651. Power on cutter. Connect to cutter.
  2. Initialize cutter. Attempt to load file.
  3. Disconnect happens.
  4. Reconnect to cutter.
  5. File from previous attempt is present on CM screen.
7

You can upload the file now, or change the extension to .nc

8

File uploaded. Simple raster operation to surface stock. Thank you again. I feel bad that senior people at C3D have to deal with file extension questions, but I do appreciate your help.
Maple Leaf Pocket 1 (1).gcode (2.1 KB)

9

It seems we can replicate the bug on a Windows machine but not on a Mac. We’ll see if we can replicate it on a Windows machine with the full debugger- if so, it should be a quick-ish fix.

4 Likes
10

Not to just pile on, but it certainly happens in Win 11, fairly often, maybe every 4 or 5th times when using during the day. Exactly as described. I figured it was just a quirk of my equipment so just initialized and move on. I guess I’m glad to hear that I’m not alone.

2 Likes
11

I also see the with regularity. MAC CCV833 and CMV651

12

Hello. Just wanted to check to learn more about what the bug is that causes this issue, and what, if anything, I can do to prevent it.