Old 3D printer which never worked well.

Most of information about it vanished from internet so here is some overview:

• http://reprap.org/wiki/Printrbot
• http://reprap.org/wiki/Printrboard

• https://github.com/Printrbot/printrboard

Rev.B https://github.com/Printrbot/printrboard/releases/tag/revB

[Sun Mar 18 08:23:50 2018] usb 2-4.4: new full-speed USB device number 61 using xhci_hcd
[Sun Mar 18 08:23:50 2018] usb 2-4.4: New USB device found, idVendor=16c0, idProduct=0483
[Sun Mar 18 08:23:50 2018] usb 2-4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Sun Mar 18 08:23:50 2018] usb 2-4.4: Product: USB Serial
[Sun Mar 18 08:23:50 2018] usb 2-4.4: Manufacturer: Teensyduino
[Sun Mar 18 08:23:50 2018] usb 2-4.4: SerialNumber: 12345
[Sun Mar 18 08:23:50 2018] cdc_acm 2-4.4:1.0: ttyACM0: USB ACM device

dpavlin@nuc:~$ microcom p /dev/ttyACM0 
connected to /dev/ttyACM0
Escape character: Ctrl\
Type the escape character to get to the prompt.
echo:SD init fail
workDir open failed
echo:Unknown command:"echo"
ok
echo:Unknown command:"SD init fail"
ok
echo:Unknown command:"workDir open failed"
ok