SEE VIDEO: https://youtu.be/V366lF4iOiI
SWITCH IS POSITIONED IN FILAMENT DIRECTION to simplify the insertion.
With the On-Off switch in the battery box you can disable the alarm when changing the filament.
MICROSWITCH:
http://amzn.to/2GRwUNa
9V BATTERY BOX:
http://amzn.to/2oBYPZY
BUZZER:
http://amzn.to/2COh7fx
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