How to communicate with a linux (ubuntu)?

K8200 3D Printer K8200 - Computer related problems
21

Just to let you know how I fixed it: now using octoPi on my Raspberry and it works.

22

Indeed you can change the baud rate in the firmware. I tested with Ubuntu 12.04 and 115200 baud rate and at least the manual control thru Repetier works. Haven’t tested actual printing yet.

To change the baud rate, change the following lines in Configuration.h file in the Marlin firmware. I used the V2 version that can be downloaded from k8200.eu/downloads/files/dow … rlinv2.zip

Just copy paste these three lines (at row 19 onwards) on top of the old lines in Configuration.h:
// This determines the communication speed of the printer
//#define BAUDRATE 250000
#define BAUDRATE 115200

Then compile and upload the new firmware. The printer should now communicate with Ubuntu PC. Remember to update config/printer settings/communication in Repetier.

23

Hi

I upgrade firmware and change BAUDRATE 115200. I also change printer setting Baudrate 115200. Still i cant connect on the linux. I have virtualbox and there win7. Everything works well. Now i have ubuntu 14.04 and Repetier-Host V0.90D. Is not allso work Repertier-Host V0.84.

Printer settings page Repetier give only “Virtual Printer” port available. Dmesg shows it is “ttyUSB0”. If i try connect Virtual Printer port its says “Virtual Printer port does not exist”. If i write there /dev/ttyUSB0 or ttyUSB0 i get same message. Whats wrong?

I upgrade Firmware allso in ubuntu. Adruino found port “ttyUSB0”. Why repertier not found?

Thanks for helping.

24

Strange since Arduino works, but still my first guess is that there might be a permission issue. The ttyUSB port is normally owned by root. You can try adding your username to group ‘dialout’, like this: sudo adduser yourusername dialout. After this you should see all /dev/ttySxx and /dev/ttyUSBx ports in Repetier.