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Refresh SD Card Gcode
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What does this aim to solve?
In some cases, a 3D printer running Marlin-based firmware will not refresh the contents of the SD card without a power cycle. Leave this file on your SD card and "print" it to manually refresh the list of files on the SD card whenever you want. Works with Micro SD cards too!
How does this work?
Just "print" this file as if it were any other .gcode! It just sends the Marlin "M21" command to your machine. This command re-initializes the SD card, which will make your new files appear in the list. Then choose whatever you actually wanted to print. :)
Why does my friend's printer see card changes automatically?
SD card ports have a detector pin to tell if a card is inserted or not. Normally, when a card is inserted, your printer will run M21 to initialize/refresh it. When a card is removed it will run M22 to unmount it.
So why doesn't mine do that?
It could be the firmware isn't responding to changes on that pin, or it could be the pin is even damag
In some cases, a 3D printer running Marlin-based firmware will not refresh the contents of the SD card without a power cycle. Leave this file on your SD card and "print" it to manually refresh the list of files on the SD card whenever you want. Works with Micro SD cards too!
How does this work?
Just "print" this file as if it were any other .gcode! It just sends the Marlin "M21" command to your machine. This command re-initializes the SD card, which will make your new files appear in the list. Then choose whatever you actually wanted to print. :)
Why does my friend's printer see card changes automatically?
SD card ports have a detector pin to tell if a card is inserted or not. Normally, when a card is inserted, your printer will run M21 to initialize/refresh it. When a card is removed it will run M22 to unmount it.
So why doesn't mine do that?
It could be the firmware isn't responding to changes on that pin, or it could be the pin is even damag
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