OUT OF ​FILAMENT SENSOR FOR THE FlashForge Creator Pro / CTC / Wanhao / Qidi / Makerbot STYLE PRINTERS
This filament sensor automatically pauses the printer when you run out of filament, allowing you to recover your print.
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This works / is plug and play on the FlashForge Creator Pro with MightyBoard. It also needs the SailFish firmware v7.5 or later, You can use either single or dual sensors on a dual extruder. (A single sensor only monitors one roll, while two sensors will monitor both rolls).

For the Dreamer, you will need to do some soldering. It's pretty straight-forward, and I can even add in the pins required to be soldered to the board.

RAMPS 1.4 with Marlin now supported.
Link here.
Price includes shipping for USA buyers. International buyers will have shipping charges added. International buyers responsible for import duties.
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Real World Test

Above is a video of the filament end sensor in action. When paused, you can choose to leave the heaters running or to shut them off.

Sensor cable installed

Sensor cable plugged into a MightyBoard on a 2014-2016 FlashForge Creator Pro