The request came in as a result of a Photonster hitting a bug in the board firmware. Due to this bug, the printer was rendered powered on and somewhat operational for an extended window, while the cooling fan(s) had been shut off due to said bug. This resulted in potential damage to the LCD, LED and Mainboard components due to potential overheating.
This feature can be built to operate in two mode, selectable by the user via a config checkbox and trivial wiring change (move 1 wire from the N.O. to the N.C. screw terminal ( or visa-versa on the relay board)
Safety shutdown mode
Safety Shutdown Mode puts a Normally Closed relay in line with the 12V power leads as they enter the chassis.
The ESParaSite can then open the relay (shutting down power to the Printer Mainboard).
Advantages
The ESParaSite is only responsible for opening the relay (cutting the power).
Printing can be aborted in case of over temperature conditions being reached.
allows us to control the printer power remotely
Disadvantages
less features
If used for remote power on/off, the "off state" becomes dependent on the ESParaSite.
Soft Power Mode
Soft Power mode puts a Normally Open relay in line with the 12V power leads as they enter the chassis.
Advantages
allows us to control the printer power remotely
reduces eeprom corruption risk by allowing us to make clean writes and enter sleep mode rather than being at the mercy of when the user turns off the switch.
allows us to cut power to the unit in case of over temperature conditions being reached.
Could implement wake on LAN/Wifi and other handy features
Disadvantages
Relying on ESParaSite adds additional points of failure and complexity
Successful prints completely depend on ESParaSite stability
The request came in as a result of a Photonster hitting a bug in the board firmware. Due to this bug, the printer was rendered powered on and somewhat operational for an extended window, while the cooling fan(s) had been shut off due to said bug. This resulted in potential damage to the LCD, LED and Mainboard components due to potential overheating.
This feature can be built to operate in two mode, selectable by the user via a config checkbox and trivial wiring change (move 1 wire from the N.O. to the N.C. screw terminal ( or visa-versa on the relay board)
Safety shutdown mode
Safety Shutdown Mode puts a Normally Closed relay in line with the 12V power leads as they enter the chassis.
The ESParaSite can then open the relay (shutting down power to the Printer Mainboard).
Advantages
Disadvantages
Soft Power Mode
Soft Power mode puts a Normally Open relay in line with the 12V power leads as they enter the chassis.
Advantages
Disadvantages