SD card printing issue //warning do not print from slow sd//

Vertex 3D Printer Vertex - Issues while printing
1

So i was having an issue where printing from my 2gb SD card the printer would say that is was 100% done printing, however the actual print was nowhere near done. So i tried changing to a high class 10 SD the print completed perfectly. This seems like a strange issue and id like to know why this happens?

As you can see it says 100% complete but the temp stays at 190c wut?

z3CKWN6.jpg4160×3120

The actual print:

uA9TmzD.jpg4160×3120

The SD card:

ofotesG.jpg3120×4160

This is just a warning, i think leaving the printer at 190c with no movement overnight could be a real danger, and probably will damage the printer.

2

I’ve had that : it happens when you remove the SD card from your computer before the file is fully loaded. So the end of the G-code is missing.

3

Indeed, it’s probably there the problem.
When you print from SD card, the content of the file (gcode) is copied in the memory of the printer before starting the process, so your problem occurs when you’re upload the file from computer to your sd , as raby said.

I think there is a limit for read/write cycles from SD to printer memory (eeprom) so I avoid print from sd but I’m certainly wrong. Must be enough confident over robustness of arduino’s memory.

4

It is always best to eject the usb stick before removing it to clear the write buffer of the device

Left click the icon in your taskbar and “Eject Mass Storage Device”

Wait for the message

5

I save my gcode to the hard drive them copy it to the SD card.
It’s faster and there is a graphic bar that will tell you the progress.
You can also compare the size as well
Just a thought

6

Indeed, it’s probably there the problem.
When you print from SD card, the content of the file (gcode) is copied in the memory of the printer before starting the process, so your problem occurs when you’re upload the file from computer to your sd , as raby said.

I think there is a limit for read/write cycles from SD to printer memory (eeprom) so I avoid print from sd but I’m certainly wrong. Must be enough confident over robustness of arduino’s memory.[/quote]

Sorry, I’m wrong… Gcode is not copied from sd to mem of arduino. Commands are read and proceed one by one. :-S

7

I blush a bit to admit I’m using a decade-old 128MB Sandisk SD card for my stand-alone printing, and it works perfectly. However, saving the gcode to it from the PC does remind me of the old floppy-disk days, speed-wise. It takes up to 10 seconds before some files are fully copied.

8

I think I have noticed that it takes a lot longer for Slic3r to load the gcode compared to Cura. No scientific evidence for this though.
I usually open Explorer to check the sice of the gcode file on the SD. Then refresh (PF5) and look for a change in size. If no change the file is loaded.

I also use an old 256Mb card.