how to send a g-code to the printer when its pluged in by a USB cable

[jrowland_03 0]

hello my name is Jason my micro sd card reader went bad i am woundering is there a way to send the g-code to the Creality Ender 3 when it is hooked up by USB cable thank you in advance 

[GregValiant 1,330]

Maybe.  Sometimes is works.

Make sure you have a data-capable USB cord (some phone cords are just for charging the battery).

In Cura - open the MarketPlace in the top right of the screen.  It takes a minute to load.  Click on the Installed tab and scroll down to USB Printing and make sure it's marked as installed.  Then close Cura.

Plug your printer into the computer and then re-start Cura.  Load a model and after a minute or two Cura should notice the printer.  After you slice the "Slice" button will say Save To Disk.  There should be an arrow on the right end.  Click on the arrow and see if one of the options is USB Printing.  If it is then click on it.  I can't remember the rest but you should go to the Monitor screen and you can pre-heat and print from there.

Possibly.  I can print to my E3Pro that way.  I'm not fond of it because USB Printing is glitchy as it is no longer kept up as no Ultimaker printers use it.