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#1 2018-02-09 00:21:23

LucasSossai
Member
Registered: 2018-02-09
Posts: 3

Accessing NanoDLP information with another Raspberry and stop signal

Hello Guys,

I'm developing an algorithm to detect faults in my 3D printer and I would like to know if I can acess what is the area of each layer in real time during the impression with another Raspberry Pi which is collecting data from a strain gage load cell. Also is there a way to send a stop signal for the NanoDLP stop the printing?

Thank you!

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#2 2018-02-09 13:21:42

Shahin
Administrator
Registered: 2016-02-17
Posts: 2,305

Re: Accessing NanoDLP information with another Raspberry and stop signal

Yes, you can access area value and using fault pin you can stop nanodlp in direct mode. If you are using RAMPS, you need to stop printer on RAMPS side.

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#3 2018-02-09 13:29:40

LucasSossai
Member
Registered: 2018-02-09
Posts: 3

Re: Accessing NanoDLP information with another Raspberry and stop signal

Shahin wrote:

Yes, you can access area value and using fault pin you can stop nanodlp in direct mode. If you are using RAMPS, you need to stop printer on RAMPS side.

Thank you very much for the answer!
How can I access the area value?

Also another question, I'm using another Raspberry to collect data from the printing process, do you think its possible for the same Raspberry that has the NanoDLP installed to also collect this data and analyze it?

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#4 2018-02-10 05:55:53

Shahin
Administrator
Registered: 2016-02-17
Posts: 2,305

Re: Accessing NanoDLP information with another Raspberry and stop signal

Sure, you can run it on the same rpi. You can find individual plates here "/home/pi/printer/public/plates", each one contains info.json which contains content that you want.

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#5 2018-02-11 20:41:33

LucasSossai
Member
Registered: 2018-02-09
Posts: 3

Re: Accessing NanoDLP information with another Raspberry and stop signal

Shahin wrote:

Sure, you can run it on the same rpi. You can find individual plates here "/home/pi/printer/public/plates", each one contains info.json which contains content that you want.

Nice, I've managed how to access json files but I dont know how to open both my programs in the same rpi, can you give me some guidance?

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#6 2018-02-12 20:25:55

Shahin
Administrator
Registered: 2016-02-17
Posts: 2,305

Re: Accessing NanoDLP information with another Raspberry and stop signal

You can add it to systemd, so it will run automatically.

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