Is there a maximum size you can print from an SD card on a TAZ5?
I tried printing a 17MB file (from Cura). It printed about 73 (of the 277) layers then just stopped. Then I modified the GCODE to start from where it stopped, and it printed another 77 layers, and stopped again.
It’s like it just ran out of GCODE - didn’t reset or anything. No errors. Didn’t turn off the head or center the tool.
There’s no funny instruction in the GCODE at that point, it’s just a G1 surrounded by a bunch of other G1’s in the middle of the layer.
Just says: “Printing…” on the display but it doesn’t make any further progress.
OK, checked the file and I have no idea whats wrong… I thought there could be something at these lines that triggers a safety function of marlin like a too long extrude or a wired move (I had this once ago here).
You might try a more up-to-date version of Marlin, maybe it’s something in the “old” default firmware. If you want to do this, have a look in my signature.
The last 2 prints were created using Simplify 3D instead of Cura. They were identical prints, and both stopped at exactly the same position in the print, about 50% through. I watched the output at that point - it’s as if the file just ran out of GCODE - no error messages or anything.
This to me look like Merlin just thought the file was done when it tried to read some more data from it.
So I swapped the SD card with another one… and voila. Now everything works, and I printed 4x 2 hour jobs in a row without a problem.
Would be nice if it gave an error message on the screen. Or even a success code (e.g. “32550 lines printed”). That way you can compare to how many lines there are actually in the file and see if this is a file/disk problem or a Merlin problem.