How to check the piezo board's voltage (Epsilon Series)

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Tools
	Allen key 2 mm
	Allen key 2.5 mm

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1. Turn off and unplug the printer.

bcn3d-epsilon-turn-off-1

sigmax-turn-off-2

2. Remove inner cover

Warning! Be careful when handling the connection cover as the cables underneath may be damaged.
The piezo cable is extremely sensitive, use caution when handling it.

3. Check piezo board

If your printer model has a clamp to hold the flat cable in place, remove the clamp so that the cable is loose as shown here:

ffc-extruder-board-epsilon

Unscrews the board from the plate. There is no need to unplug the fan, piezo and hotend cables.

Carefully, turn the piezo board and check the voltage value.

Once you have the voltage, reassemble the components following the steps backwards.