Instructions

USER GUIDE
30
12.2. Firmware update on older printers
If you have an older printer and have not updated the firmware in a long time, you will first need to re-start your
printer.
From time-to-time you may encounter a traffic jam scenario when aempting to upload this new fimware; in some
cases your CraBot’s screen will go completely blank and even seem to be “non-functional” but do not worry! This
situation can be easily remedied by following these easy steps to fix your machine.
• Erase the LCD display
- Take a look at your LCD display located at the middle top front of the CraBot 3D printer. You will need to
get around to the back of the LCD to erase. The “erase” buon is located at the boom le corner of the LCD
looking from the inside.
- Switch off your machine.
- Wait 10 seconds.
- Press and hold the “erase” buon on the LCD. Then powering up your printer.
- Wait 5 seconds, then switch off your printer again.
• Erase the PCB panel
- For the main controller PCB erase buon, while your printer is still switched off, use a piece of filament to
insert into the “erase” hole which is located on the side of the printer, under the USB / Encoder connectors.
- Press and hold the buon with the filament, (you should hear and feel a smack click) then powering up your
printer again.
- Wait 5 seconds, then switch off your printer again.
Now both controller boards are erased. At this point the screen should still be blank and your CraBot should still be
unresponsive. From this point proceed to the firmware update mentioned previously and aer uploading you should
have a 100% operational CraBot printer!