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#1 2017-02-02 19:29:09

DrNK
Member
Registered: 2016-11-19
Posts: 94

Need to remove a delay that slowly destroing sensitive polimer

Shutter should blocks all the lite from projector. When it opens there are two stages; first is the blank rectangular screen 1920x1080 with low intensity but it degrade polymer and the second - projecting the real slice image.
Is it possible to remove/make shorter a delay between opening shutter and projecting next slice image?

Look at the video, please
https://goo.gl/photos/c1vGDHttoueybXXz8

This delay about 3 seconds.

The same thread in Muve3d forum

https://groups.google.com/forum/#!topic … J3_qhUqXLU

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#2 2017-02-02 19:45:40

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,541

Re: Need to remove a delay that slowly destroing sensitive polimer

You have both RPi servo and shutter gcode enabled. If you have wired your shutter to RAMPS change shutter type. If it is connected to RPi remove shutter gcodes.

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#3 2017-02-02 19:56:19

DrNK
Member
Registered: 2016-11-19
Posts: 94

Re: Need to remove a delay that slowly destroing sensitive polimer

Yes, you are right.
Shutter connected to the RAMPS
Should I desable Shutter in the Setup page ?

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#4 2017-02-02 20:05:15

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,541

Re: Need to remove a delay that slowly destroing sensitive polimer

Yes disable it as nanodlp is not in control of the shutter.

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#5 2017-02-02 20:29:50

DrNK
Member
Registered: 2016-11-19
Posts: 94

Re: Need to remove a delay that slowly destroing sensitive polimer

2 second delay still remains

https://goo.gl/photos/3KcR2HG5DGd234kt7
https://goo.gl/photos/4KTkdsE4zB4HyWvx6

I understand that in the current resin profile there is 2 sec delay for resin releveling/bubbles out. Is it possible to make shutter opening 0.5 seconds before real slice projecting?

Could Pixel dimming also decrease parasite effect?

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#6 2017-02-03 13:21:16

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,541

Re: Need to remove a delay that slowly destroing sensitive polimer

You need to modify gcodes, I am not familiar with muve3d gcodes.

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#7 2017-02-03 20:53:56

DrNK
Member
Registered: 2016-11-19
Posts: 94

Re: Need to remove a delay that slowly destroing sensitive polimer

Could you check these settings? https://cl.ly/151E0o0p2m2a
I failed my last print with them. I changed "Wait Before Print" from 2 sec to 0.3. It solved an issue with 2 sec blank projection image. But I need 2 sec pause after lift to let polimer surface distribute. What is correct place in nanoDLP Profile page to put this 2 sec delay?

I have set  Wait After Lift  1 sec but actually there were  no any delay. Movement down, shutter opens, 0.3 sec delay, projection the slice image, shutter close, lift up.
I`d like to get

Movement down, 2 sec delay,  shutter opens, 0.3 sec delay, projection the slice image, shutter close, lift up.

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#8 2017-02-04 07:42:21

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,541

Re: Need to remove a delay that slowly destroing sensitive polimer

Put delay on gcode box. you have delay keyword there.

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#9 2017-02-04 15:50:24

DrNK
Member
Registered: 2016-11-19
Posts: 94

Re: Need to remove a delay that slowly destroing sensitive polimer

Thank you very much! It works.

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