A visual guide to dynamic lift speeds in NanoDLP

lenne0815 · 2017-06-29 15:14:22

Last edited by lenne0815 (2017-06-29 16:42:18)

Shahin · 2017-06-29 20:28:52

Looks awesome!

lenne0815 · 2017-06-30 09:22:20

Thanks Shahin ! would be a bit easier if you let me pull "BaseLayerAmount" from the input box, but works like this aswell.

Shahin · 2017-06-30 15:59:11

We could have IsBurninLayer (0 or 1), or you think BurninLayers<4 could be more flexible?

lenne0815 · 2017-06-30 16:02:54

No, that would be just fine ! i think fiddling with burn in layers would be complicated and not really nessecary On a side note, i just realised you added dynamic acceleration aswell, how would i go about testing it ? And we have values for individual cure areas, i didnt realise that, man you are on fire !

Shahin · 2017-06-30 16:18:17

Dynamic acceleration is only available for direct control. RAMPS control acceleration as I know we could not modify it from nanodlp side.
I have added IsBurninLayer to the beta version.

As I know only few people working on complex dynamic formulas. Will be happy to help anytime.

lenne0815 · 2017-06-30 17:06:10

Julien Delnatte is still working on his UV Led daugtherboard for the Pi, as soon as he makes it available il change over to direct control ! How do you drive the stepper directly ?

lenne0815 · 2017-06-30 17:48:09

So i tried the [[IsBurnInLayer]] Variable but it doesnt seem to retunr anything and in the calculator preview i cant put in values to test it ? ( 1553 )

Last edited by lenne0815 (2017-06-30 17:53:26)

Shahin · 2017-06-30 19:01:56

Only pulses get generated on nanodlp side and currently it is far from quality of one generated by arduino. so keep using RAMPS.

Use IsBurninLayer and not IsBurnInLayer

lenne0815 · 2017-06-30 19:15:36

Tried that aswell, doesnt work either Pulses would be enough if we could still use the Ramps for the rest ?

Last edited by lenne0815 (2017-06-30 19:16:48)

Shahin · 2017-06-30 19:32:25

Are you sure you have upgraded to the latest beta? Do you see keyword in on-screen help?
I have tried it and it working fine.

lenne0815 · 2017-06-30 19:40:49

Yes i see the keyword in the help section but the descriptions are missing a line aswell, im on 1553, upgraded via (wget http://www.nanodlp.com/nanodlp.beta.tar.gz? -O - | tar -C /home/pi -xz);cd /home/pi/printer;sudo ./setup.sh

Shahin · 2017-06-30 19:51:06

I have rebuilt and push it online again.
Example:
[[IsBurninLayer]]*10+10 (10s cure time for normal layers and 20s for burn-in layers)

lenne0815 · 2017-06-30 20:19:07

Now setup recons it cant update because im already on the latest version, can i force it somehow ?

Last edited by lenne0815 (2017-06-30 20:20:43)

Shahin · 2017-06-30 20:37:04

use command line interface

lenne0815 · 2017-07-01 08:39:41

I just googled an hour how to do that but failed, im a total newb when it comes to linux unfortunately

Shahin · 2017-07-01 09:00:29

Sorry, use simple installation process for nanodlp. It will force upgrade.
Also I have pushed couple of bugfix so right now, you can upgrade through program itself too,

1125lbs · 2017-07-01 13:42:32

very nice !

Thanks lenne0815.

lenne0815 · 2017-07-01 20:05:03

Holy eff, what a mission I got it figured out though:

{ ([[IsBurninLayer]])*35 + (abs([[IsBurninLayer]]-1)) * ( 45 + 70 / ( 1 + ( 2.718** -( 2 - ( 0.008*[[TotalSolidArea]]) + 2)))) }

I needed to invert the isburnin layer values and the calculation preview is still not working for IsBurninlayer but for testing i just exchanged it to a different call so i could figure out how to make it work.

While testing another "bug" became apparent, if you resubmit a plate before it has been finished nanoDLP becomes unresponsive and the pi needs to be rebooted.

Last edited by lenne0815 (2017-07-01 20:19:49)

Shahin · 2017-07-01 20:26:58

It was probably memory usage issue.
{ ([[IsBurninLayer]])*35 + ([[IsBurninLayer]]==0) * ( 45 + 70 / ( 1 + ( 2.718** -( 2 - ( 0.008*[[TotalSolidArea]]) + 2)))) }

lenne0815 · 2017-07-01 20:30:55

I tried == initially but couldnt get it to work because i couldnt preview it, will do it that way, much more elegant !

The resubmit bug has been plaguing me for quite some time now so im unsure if its memory related, it happens no matter what is slicing at the time ( small or big models ) as soon as i resubmit a second plate or even resubmit the same plate while still slicing the pi stops calculating until i reboot it.

Shahin · 2017-07-02 06:38:30

I could not reproduce the issue. My guess is files are large enough to crash Pi version. Whenever it crashes please share debug file so I could know what have caused the issue.

lenne0815 · 2017-07-02 11:42:21

I reinstalled nanoDLP twice and the layer calculation is still a bit erratic but while doing so another problem reared its head;

Dynamic lift height ( which i get with [[ZLiftDistance]] ) only calculates full values not the decimals, if i change ([[IsBurninLayer]])*3.5 to 4 5 6 etc it works, decimals ( like my calculation ) dont get calculated.

An example of a dynamic lift script:

{ ([[IsBurninLayer]])*3.5 + ([[IsBurninLayer]]==0) * (1 / ( 0.7 + ( 2.718**-(0.02*[[LargestArea]] - 3))) +1.7 ) }

It does start working correctly when i put it directly in the Gcode after each layer box though:

M107
G1 Z{[[LayerPosition]]+([[IsBurninLayer]])*3 + ([[IsBurninLayer]]==0) * (1 / ( 0.7 + ( 2.718**-(0.02*[[LargestArea]] - 3))) +1.7 ) } F[[ZSpeed]] P1
[[WaitForDoneMessage]]
[[PositionSet [[LayerPosition]]]]

returns the proper z height values.

Last edited by lenne0815 (2017-07-02 21:40:40)

1125lbs · 2017-07-03 04:40:31

would we use some ceil or float before * in equation, could releaf "brain stress" for pi deal with movements?

i think the float numbers would not affect so much when dealing with velocity, in case you working with direct control with dynamic speeds , velocities could influence in rounding errors depending of the driver capabilities. as direct control may have been coded with pulse train, do you think it could improve anyway?

1125lbs · 2017-07-03 05:34:08

is it possible to handle [[Slowsection]] in dynamic speed?

nanoDLP

#1 2017-06-29 15:14:22

A visual guide to dynamic lift speeds in NanoDLP

#2 2017-06-29 20:28:52

Re: A visual guide to dynamic lift speeds in NanoDLP

#3 2017-06-30 09:22:20

Re: A visual guide to dynamic lift speeds in NanoDLP

#4 2017-06-30 15:59:11

Re: A visual guide to dynamic lift speeds in NanoDLP

#5 2017-06-30 16:02:54

Re: A visual guide to dynamic lift speeds in NanoDLP

#6 2017-06-30 16:18:17

Re: A visual guide to dynamic lift speeds in NanoDLP

#7 2017-06-30 17:06:10

Re: A visual guide to dynamic lift speeds in NanoDLP

#8 2017-06-30 17:48:09

Re: A visual guide to dynamic lift speeds in NanoDLP

#9 2017-06-30 19:01:56

Re: A visual guide to dynamic lift speeds in NanoDLP

#10 2017-06-30 19:15:36

Re: A visual guide to dynamic lift speeds in NanoDLP

#11 2017-06-30 19:32:25

Re: A visual guide to dynamic lift speeds in NanoDLP

#12 2017-06-30 19:40:49

Re: A visual guide to dynamic lift speeds in NanoDLP

#13 2017-06-30 19:51:06

Re: A visual guide to dynamic lift speeds in NanoDLP

#14 2017-06-30 20:19:07

Re: A visual guide to dynamic lift speeds in NanoDLP

#15 2017-06-30 20:37:04

Re: A visual guide to dynamic lift speeds in NanoDLP

#16 2017-07-01 08:39:41

Re: A visual guide to dynamic lift speeds in NanoDLP

#17 2017-07-01 09:00:29

Re: A visual guide to dynamic lift speeds in NanoDLP

#18 2017-07-01 13:42:32

Re: A visual guide to dynamic lift speeds in NanoDLP

#19 2017-07-01 20:05:03

Re: A visual guide to dynamic lift speeds in NanoDLP

#20 2017-07-01 20:26:58

Re: A visual guide to dynamic lift speeds in NanoDLP

#21 2017-07-01 20:30:55

Re: A visual guide to dynamic lift speeds in NanoDLP

#22 2017-07-02 06:38:30

Re: A visual guide to dynamic lift speeds in NanoDLP

#23 2017-07-02 11:42:21

Re: A visual guide to dynamic lift speeds in NanoDLP

#24 2017-07-03 04:40:31

Re: A visual guide to dynamic lift speeds in NanoDLP

#25 2017-07-03 05:34:08

Re: A visual guide to dynamic lift speeds in NanoDLP

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