I assume with “Open the vertex Nano software” you mean Vertex Nano Repetier V1.6.2, right?
I’ve used this after having installing the FTDI USB-COM driver v2.12.26, connected the USB cable, but were unfortunately unable to establish a serial connection. In Repetier I choose have chosen the following Printer Settings: Connector: Serial, Port: COM4 (as shown in the device manager), Baud rate: 250000 or 9600, Transfer Protocol: ASCII, Reset on Emergency: Send emergency command, Receive Cache Size: 127, Communication Timeout 3s, No Ping-Pong ticked.
What is wrong? Why don’t I get a connection?
Is there any alternative via SDcard to follow this procedure? Could you send me a file for otpimizing the PID to print at 235° or 240°?
Your support would be much appreciated!