Post by RobertsClif on Apr 27, 2024 0:21:43 GMT
While doing a bed leveling I found that the nozzle keeps diving into the bed then stops in middle of leveling.
I had just added my Spool holder G-Codes to the SD card before failure occurred an then only had 130 files on SD card
While looking at the code see that have Alpha sorting enabled on for Sorting code attached
/**
* Sort SD file listings in alphabetical order.
*
* With this option enabled, items on SD cards will be sorted
* by name for easier navigation.
*
* By default...
*
* - Use the slowest -but safest- method for sorting.
* - Folders are sorted to the top.
* - The sort key is statically allocated.
* - No added G-code (M34) support.
* - 40 item sorting limit. (Items after the first 40 are unsorted.)
*
* SD sorting uses static allocation (as set by SDSORT_LIMIT), allowing the
* compiler to calculate the worst-case usage and throw an error if the SRAM
* limit is exceeded.
*
* - SDSORT_USES_RAM provides faster sorting via a static directory buffer.
* - SDSORT_USES_STACK does the same, but uses a local stack-based buffer.
* - SDSORT_CACHE_NAMES will retain the sorted file listing in RAM. (Expensive!)
* - SDSORT_DYNAMIC_RAM only uses RAM when the SD menu is visible. (Use with caution!)
*/
#define SDCARD_SORT_ALPHA
// SD Card Sorting options
#if ENABLED(SDCARD_SORT_ALPHA)
#define SDSORT_LIMIT 20 // Maximum number of sorted items (10-256). Costs 27 bytes each.
#define FOLDER_SORTING -1 // -1=above 0=none 1=below
#define SDSORT_GCODE false // Allow turning sorting on/off with LCD and M34 G-code.
#define SDSORT_USES_RAM false // Pre-allocate a static array for faster pre-sorting.
#define SDSORT_USES_STACK false // Prefer the stack for pre-sorting to give back some SRAM. (Negated by next 2 options.)
#define SDSORT_CACHE_NAMES false // Keep sorted items in RAM longer for speedy performance. Most expensive option.
#define SDSORT_DYNAMIC_RAM false // Use dynamic allocation (within SD menus). Least expensive option. Set SDSORT_LIMIT before use!
#define SDSORT_CACHE_VFATS 2 // Maximum number of 13-byte VFAT entries to use for sorting.
// Note: Only affects SCROLL_LONG_FILENAMES with SDSORT_CACHE_NAMES but not SDSORT_DYNAMIC_RAM.
#endifHowever this should not effect leveling as the SD Sort Limit is set to only 20,
Removed several files from SD card and the Bed Leveling again works.
Wanted to test so inserted a 2nd SD card with more files and it too worked
This must be a bad SD card, come to the conclusion because this is the 2nd time the same SD has caused me 3D Printer problems.
However I have tested this card with a SD card tester and it passed all tests.
