upload to sd is over serial, so is limited to the baud rate you set in esp3d
wifi -> serial -> controller -> sdcard.
some are trying to implement meatpack serial compression to double the transfer speed... its not there yet.
There are two way around the slowness
1) use octoprint. It saves to its own sdcard and just prints over serial. upload is limited by wifi speed
2) use a controller with USBCDC serial (ie usb goes directly to the controllers chip) these upload at 12mbs and ignore the set baudrate. most lpc1768/9 based boards do this,
Edited 1 time(s). Last edit at 03/24/2021 04:13AM by Dust.