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#1 2020-03-23 04:27:47

macdarren
Member
Registered: 2017-03-20
Posts: 411

Multicure not working??

using version beta 2629

I created a simple STL of a cylinder. 
I used the advanced button to enter multiple cure times (normal is 18) so I put in 19,20,21,22
I chose the cylinder and created the plate

plate preview each layer shows only a single cylinder exposed at 18 seconds, just as if multicure was not used.

Is this expected?

Edit:
Remote slicer was at beta 2620 this I presume caused the failure, using Pi slicer at 2629 resulted in the expected multiple cylinders.

Last edited by macdarren (2020-03-23 04:31:29)

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#2 2020-03-23 20:43:09

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

Re: Multicure not working??

How was the end result Darren?

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#3 2020-03-25 02:45:13

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

Print failed.  Printer stopped midway through.  Not sure why.  I intend to retry with same plate (no changes or regen) to see if it is printer or plate.  Maybe just a glitch.  I will report result either way.  Printer has never stopped mid print before although I have seen others say that it has happened to them. Probably get a chance to rerun tomorrow.

Also I note the printer didn’t crash I could still use controls to raise platform.  I haven’t looked at the logs yet.

Last edited by macdarren (2020-03-25 02:48:10)

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#4 2020-03-26 01:16:55

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

Failure...:(

rebooted machine before print but printed same plate that failed before.

Print failed at layer 11:  Printer seems to have crashed and gone offline from the web interface. 


I should note that I don't think the burnin layers were cured for the proper time...they seem to have cured at the lowest cure time specified in the multiple exposure.
Also I sorta expected the various iterations of the model to wink out as their exposure time was reached (I assume they would be masked on the imaging plate to generate the multiple exposures)

Note the message of low memory but the dashboard stats show only 3%

here is a screen shot fo the dashboard panel:

https://www.dropbox.com/s/oay6lh9hxhhgl … 5.jpg?dl=0

here is the log from the screen:


Level    Layer    Time    Module    Details
Error    11    2020-03-25 18:00:41.162418    System    High memory usage, force GC 859 26 14
Error    11    2020-03-25 18:00:32.598425    System    High memory usage, force GC 859 26 23
Debug    11    2020-03-25 18:00:31.520576    Printing    Curing for 16 seconds
Debug    11    2020-03-25 18:00:29.307472    Shutter    Shutter Open
Warning    11    2020-03-25 18:00:29.29595    Image    Display layer public/plates/279/11.png
Notice    11    2020-03-25 18:00:29.295433    Gcode    Position set to 1.1
Notice    11    2020-03-25 18:00:29.295312    Terminal    Received Data From Controller: Z_move_comp
Info    11    2020-03-25 18:00:29.295191    Controller Sync    Waiting for Z_move_comp response from Controller
Info    11    2020-03-25 18:00:29.295099    Controller Sync    Done message from Controller has been received
Notice    11    2020-03-25 18:00:27.042579    Terminal    Received Data From Controller: ok
Debug    11    2020-03-25 18:00:27.02868    Gcode    Transferring Data G1 Z1.1 F400.0000
Notice    10    2020-03-25 18:00:27.027748    Gcode    Position change 6 to 7
Notice    10    2020-03-25 18:00:27.027642    Terminal    Received Data From Controller: Z_move_comp
Info    10    2020-03-25 18:00:27.027507    Controller Sync    Waiting for Z_move_comp response from Controller
Info    10    2020-03-25 18:00:27.027412    Controller Sync    Done message from Controller has been received
Notice    10    2020-03-25 18:00:25.205682    Terminal    Received Data From Controller: ok
Notice    10    2020-03-25 18:00:25.189613    Terminal    Received Data From Controller: Z_move_comp
Debug    10    2020-03-25 18:00:25.189433    Gcode    Transferring Data
G1 Z7.0000 F400.0000
Info    10    2020-03-25 18:00:25.189374    Controller Sync    Waiting for Z_move_comp response from Controller
Info    10    2020-03-25 18:00:25.189316    Controller Sync    Done message from Controller has been received
Notice    10    2020-03-25 18:00:22.153108    Terminal    Received Data From Controller: ok
Debug    10    2020-03-25 18:00:22.13696    Gcode    Transferring Data G1 Z3.0000 F40.0000
Error    10    2020-03-25 18:00:20.893928    System    High memory usage, force GC 859 26 20
Debug    10    2020-03-25 18:00:17.120033    Shutter    Shutter Close
Debug    10    2020-03-25 18:00:17.031295    Image    Clear screen
Debug    10    2020-03-25 18:00:15.903888    Printing    Curing for 1 seconds

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#5 2020-03-26 01:37:49

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

rebooted machine again...

tried printing with Vat out so I could see what was happening...
Also I am not monitoring from web browser, just stated print from printer onboard display panel

so far it has gotten much further...I will wait to see if it finishes.

it exposed only the first layer for the prescribed burnin time.
remainder of burn-n layers were done as multiple exposures.
once print is finished or crashed I will verify how many burnin layers there should be....I think it is 5 but maybe this was done with a profile that had only one.

remaining layers did as I expected with each iteration turning off as time expired.

Also I would request a different layout of multi exposure object array.
First I would like a little more margin around the perimeter of the plate so all objects avoid the extreme edge.
Also I think it would be good to allow an a range met that is center oriented....working outward.with the higher exposures.....
And if possible it would be nice if there was some way to differentiate the printed exposures....it is hard to work with them on bed and
hard to keep them ordered once removed and cleaned...so hard to know which exposure was best.   
Maybe a numbered raft or something....
What I have done when doing this manually was a perimeter ring that is lightly attached to the model with differing small pips on the ring to denote exposure number.

Thanks for the new features!!!

Last edited by macdarren (2020-03-26 01:46:29)

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#6 2020-03-26 04:02:29

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

Sadly print crashed again....and badly....luckily with no vat or resin in machine this time....
failure explains the really thick resin I cleaned out on previous failure....
this crash stopped with UV source on and plate exposed (so stoped middle of cure) .... so resin would have been exposed to extend length UV.
Hopefully the LCD panel is not damaged from extended exposure........hard to say until I get good print out of it.
I will try a run without the vat on previous plate without multiple exposure and see if it completes if so I will try an actual print.


Oh and I confirmed there are supposed to be 5 burnin layers on this plate.

Last edited by macdarren (2020-03-26 04:08:22)

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#7 2020-03-26 21:07:41

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

Re: Multicure not working??

Darren,

Thank you for your support.
Please, share a debug file after crash.
I have pushed an beta version online with following fix.
* Memory issue resolved (hopefully)
* Burnin layer cure time issue resolved (now it respect it)
* Margin around each piece increased (5mm=>7mm should expose it in future)
* Pieces arranged at the middle


> Also I think it would be good to allow an a range met that is center oriented....working outward.with the higher exposures.....
Middle should be highest or lowest cure time and what is the reason for it?

> And if possible it would be nice if there was some way to differentiate the printed exposures....it is hard to work with them on bed and
I thought about it before, not sure if it good idea to modify user inputed objects.

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#8 2020-03-26 21:43:05

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

arranging around the middle was because some printers have uneven light distribution and most of those have the best most focused pattern in the center.
putting the longest exposure in the center will I think help give more realistic results,  it helps avoid the margin issues.
This is probably not the best or only way to do this...I could see building a long test structure replicated across the bed using the original layout, however I was doing small cylindrical towers and cubes
perhaps the original layout is best with the right structure and having the cure times centered....
Ideally maybe some sort of concentric ring of increasing exposure times might be good but too complicated I think.

not sure... but maybe an option to have a grid printed kinda like an inverse mask on the first .5mm of print...
or better whatever the burnin calls for so that the grid will be solid everywhere even if exposure time is low.

This grid could be labeled a-z on one axis and 1-N on the other.
If this is optional then it would not hurt if someone doesn't want it
but it would be a simple way to identify each of the multi-cured parts.

It would be nice then to understand and see the order of how each the parts are placed on the bed.
Maybe that could be done in the plate layer previews...similar to the overhangs....just an indicator of what exposure was at which point in the grid.


I completed a standard print and while it is not perfect it seems my LCD is good for more testing and that the
problem is just in how the multi-cure works...

I will update to the latest beta and try my revised cure test part again.

post crash debug file:  https://www.dropbox.com/s/j7opc5wco51u4 … 8.zip?dl=0


Thanks for the update...

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#9 2020-03-26 23:41:18

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

Re: Multicure not working??

I just found a memory leak and just pushed update online make sure you are updated to the latest build.

Not sure about having longest in middle, it will be much more solid, I guess users should fix their mask issue before using multicure.
Also rearranging them will cause more confusion about finding out which piece printed with what cure time.

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#10 2020-03-27 01:02:13

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

just had a shutter open failure with v2637.....
log at:

https://www.dropbox.com/s/zb4zwjgovoac0 … 0.zip?dl=0

updated to v2645
need to clean up vat and retry...next time with no resin..:)

I agree too confusing especially if there is no label or positional indication....I have a new test structure that I think will work well with multi-cure and the current layout.

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#11 2020-03-27 07:35:06

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

Test Print with multi-cure completed successfully....  v2645

hard to tell exactly what exposure time was used for the best iteration....
Not clear which iteration is low cure time vs high cure time.....even with 1 second differences by eye they are too similar to tell apart, but that is a model design fail or just need wider time range.
If times will be ordered it would be good to know which part is first either low cure end or high cure end ...an index marker one end would suffice.

Last edited by macdarren (2020-03-27 07:36:59)

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#12 2020-03-27 07:43:36

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

Re: Multicure not working??

Darren,
Thank you for the quick test.
Cure time ordered from lowest top left to highest bottom right (on rendered layer)
Do you think it could be useful to have on screen guide (web interface only) display which part cured with what cure time on the first layer?

I do not see indication of shutter failure on log, do you know exactly what happened?

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#13 2020-03-27 15:29:34

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

Yes I think it would be very helpful to have some information on the first layer screen

I am not 100% sure what failed....only that it was printing a multicure then stopped with the shutter open (in my case UV source on and vat exposed thru LCD)
my guess is it was a memory failure.....it had many symptoms of such....the web interface was down, it was still ping-able...ssh connect was almost working but
would not get past password prompt.

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#14 2020-03-28 20:03:41

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

Re: Multicure not working??

Added overlay to display cure time. You can use it by going to layer preview and pressing information button.

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#15 2020-03-29 09:10:41

macdarren
Member
Registered: 2017-03-20
Posts: 411

Re: Multicure not working??

updated to 2647....not seeing overlay....tried it with 2 different models......layer screen seems the same as in previous versions....I am seeing multiple models, multi-cure is clearly doing its thing.


Edit:

Not sure why, but today I see the overlay....maybe you have to wait a considerable time?  Maybe browser caching or something....

I still think there needs to be a small indexing mark that gets printed....with top down, bottom up and the image reversal it is still hard to know which model on the plate is which.
Even with an index it will require careful removal and cleaning and curing to prevent mixing models...mine are multiple part as getting good cure means that not only does it look
decent but that the parts are sized properly and fit together as designed.

This is a great new feature and should save tuning time....

I still think an optional base layer only matrix that prints (maybe even including the cure times) and allows me to keep track of the times while cleaning up, would be handy.

I made an STL that gives the idea of what I mean about a printed matrix overlay...here:  https://www.dropbox.com/s/pc0cv0kiue6pf … d.stl?dl=0

Last edited by macdarren (2020-03-29 17:04:59)

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#16 2020-04-24 19:54:02

elliot
Member
Registered: 2016-04-28
Posts: 109

Re: Multicure not working??

Hi All
I am having an issue with the multicure advanced on the beta version #2692.

I input the file and selected advanced.
Input extra cure times (tried comma with spaces and without) tried 1x and 3x which should all fit on the plate
toggled between centered, disabled etc.
Tried multiple resin profiles.

It only shows a single object centered on the plate.

Object was sliced by nanosupport 32.2.0 - upgrading that version now as this thread indicates that might be the issue


What am I missing? Thanks!

Last edited by elliot (2020-04-24 19:56:31)

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#17 2020-04-24 20:31:07

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

Re: Multicure not working??

NanoSupport have mostly stable nanodlp inside for slicing so it get disabled.
Also make sure there is enough space for to pack multiple copy, if there is no enough space it drop extra models from the plate.

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#18 2020-04-24 20:42:07

elliot
Member
Registered: 2016-04-28
Posts: 109

Re: Multicure not working??

OK,
Ran the plate in 34.xx
Noticed that we can only state full numbers for the plate size, tried commas too like 216,5 instead of 216.5

The 34xx version is getting hung while slicing doesn't matter if it is a large (50 layer) or small (5 layer)

I tried the slicer on pi too

Should there be an issue with the 32xx? Is this compatible, I would like to be able to keep the decimal portions of the bed sizing.

I will reboot everything and try again.

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#19 2020-04-27 20:52:15

elliot
Member
Registered: 2016-04-28
Posts: 109

Re: Multicure not working??

Running NanoSupport 34.12.0 windows
Build on Nano 2692

Using nanosupport 34.12.0
Slicer gets hung before sending to nanodlp. I don't see a way to orient the print area or select the proper area for my printer
Reboot, sometimes will send to nanodlp,

In NanoDLP 6292:
Click add plate
select stl
Select advanced and enter multi-cure times, there is more than enough room for 2 additional drawings
seems to take them, slices, but only one image shows up on preview slides.

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#20 2020-04-29 08:17:40

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

Re: Multicure not working??

Consider it add some padding around each piece.

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#21 2020-04-30 01:41:19

elliot
Member
Registered: 2016-04-28
Posts: 109

Re: Multicure not working??

Hi Shahin,
Thanks for all your help so far to get this up an running. I''m still having issues, and want to make sure I am asking the right questions. However one item that popped into my head when working on this so far to add on the multi-cure:

In anycubics design, while the stl appears to be a multi height file, it is actually eliminating the lift at each layer. So in essence the first step gets hit with exposure of 2 seconds, the next 4 seconds, third step 6 seconds and so on. This might be an easier way and more intuitive to newer users.

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