Printer not opening serial port

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Printer not opening serial port

Postby bbrown64 » 2016-Jul-Sat-17-Jul

My Simple Metal, was working just fine this morning. I finished a print, then turned off the printer. Several hours later. I decided to print another project. Turned the printer on as always. Loaded the part. Pressed the USB icon inside of Cura, then pressed the connect button. Cura attempts to open the serial port. But the connection is never made. I then unplugged the USB cable at the printer thinking it needed to be reengaged. That did not help. The green light is on, my computer Device and Printer see's the printer. The printer is on COM3. I tried the Auto detect, that did not help. I do not know what to do next as far as troubleshooting and fixing the problem. Any words of wisdom would be helpful.
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Printer not opening serial port



Re: Printer not opening serial port

Postby RetireeJay » 2016-Jul-Sat-22-Jul

The fact that the printer shows up in the Devices and Printers list is a very good sign. It might help to reboot the computer. On a Windows computer, it might help to re-run the Teensy serial install program. It might help to type in COM3 instead of using auto-detect in Cura.

If none of those help (and maybe you've already tried them) we can dig a little deeper. It's possible to check the COM port outside of Cura to make sure it's OK - for example by running Repetier, or (to ONLY check the COM port functionality) running PUTTY (a simple terminal emulator). If the COM port is OK and you can see the printer with other programs, then maybe re-install Cura, or at least the configuration file for Cura.

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