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laserb

Automatic emergency shutdown

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I'm always worried something will happen to my printer during long prints, and when I'm printing the printer is most of the time unsupervised.

So I've been thinking of building some kind of automated emergency shutdown for UM2, so that it shutdowns if something unexpected happens like e.g. it runs out of filament or filament gets stuck etc.

My basic idea is to connect sensors to a Raspery PI/Arduino and if something wrong happens, it shuts down the powersupply. The sensor I've been thinking of is:

1) A wheel to check if the filament is moving forward within some time interval (if filament stuck).

2) Optical sensor for checking if there is filament or if the printer is out of filament midprint. something like this

3) Thermometer to check if something is overheating/burning.

4) Camera. (check in if everything is ok)

5) Current feedback from the motors if the printer gets stuck somewhere. This one is probably a little to difficult for me.

6) If the printer shuts down it will send an automated message to my smartphone.

5) and 6) perhaps to difficult for my current ability and knowledge.

Does anyone know if this already has been done or if there are products for this that you can buy?

Ideas, comments.

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Hallo @laserb,

1 + 2 has been done as out of filament sensor: http://tunell.us/. This sensor can be monitored by the printer with the firmware from @tinkergnome. See https://github.com/TinkerGnome/Ultimaker2Marlin.

Option 3 would only make sense in a closed cabin, like

http://3dprintclean.com/desktop-enclosure.htm - these already have a thermal shutdown ....

Option 4 - 6 maybe done by Octoprint http://octoprint.org/ ?

Regards,

Nils

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1 + 2 has been done as out of filament sensor: http://tunell.us/. This sensor can be monitored by the printer with the firmware from @tinkergnome. See https://github.com/TinkerGnome/Ultimaker2Marlin.

Option 3 would only make sense in a closed cabin, like

http://3dprintclean.com/desktop-enclosure.htm - these already have a thermal shutdown ....

Option 4 - 6 maybe done by Octoprint http://octoprint.org/ ?

A bit late, but thanks just the thing I was looking for.

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