The two pictures show the same corrupted file. But what's more intriguing... I have found that this corruption only occurs during the print!
I did the following:
Import the STL file in cura
Save the gcode to the SD card and copy this file to the PC
Take the card, insert it again
Read the gcode, it was OK
Print the object, then another error occurred
Stopped the print
Read the gcode in the PC, it was corrupted!
This is the gcode file view in cura after the print:
This is how the object printed:
Unfortunately I formated the card afterwards without saving the gcode, I should have made a comparison to see exactly what went wrong...
I have tried other SD card, but it doesn't get recognized by the ulticontroller (it's a 16Gb card with a partition of only 2Gb), I don't have any other 2Gb SD card...
Now I'm printing another object with the SD card write protected, I'm at 77% and everything is ok, but you never know until the end...
After this print I will try to replicate the error and see what changed in the file after printing... maybe a firmware bug?
Thanks