I bought the vertex k8400, yesterday I finished the complete assembly of the printer, I followed all the steps in the manual, when I get to install the firmware for dual head M1-V1.4-H2 with Arduino 1.0.6 on Windows 7 64 bit I get this message in arduino: avrdude usbdev-open did not find any usb device usb I followed the step by step procedure JPROG installed on the two pins.
IDE VCP driver 64 bits 2.12.06 installet.
Hi,
as far as I know, the dual head firmware is initially installed.
Only if you get a single head version, you have to change.
Please check, it is written in the documentation.
If so, connect your printer to an USB port on your computer and check if the Serial port shows in the Device manager (under Ports you should see : USB Serial Port (COMx)).
Check in Arduino under Tools/Serial port if the same serial port is selected.