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Danger: gcode getting corrupted in USBStick  

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danielsan80
(@danielsan80)
New Member
Danger: gcode getting corrupted in USBStick

A few days ago I printed a model in the morning and all was ok.
In the afternoon of the same day I printed the same model (using the same gcode in the usb stick) and something bad happened:
After 50 minutes the x-axis moved down squashing the model! I was there and I pressed the panic button.

After that I tried to open the gcode in the usb stick with Prusa Slicer and ... (see attached image)
I opened the gcode in text editor too and I found it was corrupted.

As someone has said yet, the usb stick gets hot during the printing.

Hypothesis:
- the high heat has corrupted the gcode
- the usb stick is too cheap and with an high heat it corrupts the files
- the buddy board has something wrong so it warm too much the usb stick
- the firmware has something wrong

Anyway, wouldn't it be better for the firmware to validate the gcode characters before running it? It could check the file integrity at start but I'm not sure it would be enough.

Posted : 05/10/2021 5:43 pm
danielsan80
(@danielsan80)
New Member
Topic starter answered:
RE: Update

After a while I tried to copy the corrupted file to my pc and I tried to reopen with PrusaSlicer: the "corruption" was disappered so it seemed to be "temporary", maybe related to the heat. Opening the file directly from the usbstick in PrusaSlicer and in text editor gave the corrruption.

Anyway I used another usbstick (an old one, unknows brand, probably a promotional usbstick with marketing pdfs) and I used a usb extender cable (20cm).

So, to be sure I will not use the given usbstick anymore, maybe I will buy a Sandisk to this purpose.

This post was modified 2 months ago by danielsan80
Posted : 07/10/2021 8:26 am
Urshurak776
(@urshurak776)
Eminent Member
Sandisk USB Stick

 

Posted by: @danielsan80

After a while I tried to copy the corrupted file to my pc and I tried to reopen with PrusaSlicer: the "corruption" was disappered so it seemed to be "temporary", maybe related to the heat. Opening the file directly from the usbstick in PrusaSlicer and in text editor gave the corrruption.

Anyway I used another usbstick (an old one, unknows brand, probably a promotional usbstick with marketing pdfs) and I used a usb extender cable (20cm).

So, to be sure I will not use the given usbstick anymore, maybe I will buy a Sandisk to this purpose.

I have a mini clone.  The USB stick does seem like it gets warm, but I haven't had any problems with it.  Ironically, I grabbed a Sandisk 16GB USB stick on amazon for about $8 this morning.  I will switch to that and see how it goes.

Posted : 08/10/2021 1:31 pm
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