SilverTriple's printing stuff...

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silvertriple
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Re: SilverTriple's printing stuff...

Post by silvertriple »

Dadio wrote: Mon Apr 17, 2023 6:03 am That's bad luck Mark , the first one looks great and for running not shelving it's perfect , some of the cheap tires I ran in the 80s had no better finish , you could use one of the failures to try painting a light coat of resin on the outside and curing it to remove blemishes .
Well... I don't trust in luck :-) (I'm an engineer, and I may have found that many times often than just sometimes, working as per specs is better than out of the specs). This morning before going to the office, I launched another print, with different orientation... It failed again... My son (in vacation currently) was kind enough to send me a picture after the lunch...
First fail : 85%
Second fail : 75%
Third fail : 30% (not the same file).

Conclusion something is wrong. And it doesn't seem to be the build platform levelling, neither the resin. And it should not be exposure as the first print was perfect, further UV exposure works as I can use it to perform a clean VAT... Something other affects the system. Temperature is out of question as I'm running the heater in the chamber, and I didn't change anything in the settings.

That maybe the FEP. Went back home, emptied and filter the VAT, used IPA to clean it, and the material...
The FEP still looks good... But, I took an app on Android to measure frequencies : the frequency given bac by the FAP is about 260Hz, which mean it is probably too low... As matter of fact about the causes I can find for my problem, one is FEP not tight enough... As matter of fact, everywhere I find it should be around 325Hz... And flex resin is highly stressing the FEP... So this might be my cultprit... I'm incline to replace and launch another print, but will still search for alternative solutions...
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Re: SilverTriple's printing stuff...

Post by Dadio »

very frustrating , if your thinking of changing the FEP you might consider NFEP , its gets its name from NOT FEP , its what most people are now recommending as a better material than traditional FEP , I switched to it recently but other than it seems to work just fine so far I can't tell you much more as I've not used it enough , Chitu sell it among others . What your doing is on the edge so any advantage might help .
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

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Re: SilverTriple's printing stuff...

Post by silvertriple »

Dadio wrote: Mon Apr 17, 2023 6:38 pm very frustrating , if your thinking of changing the FEP you might consider NFEP , its gets its name from NOT FEP , its what most people are now recommending as a better material than traditional FEP , I switched to it recently but other than it seems to work just fine so far I can't tell you much more as I've not used it enough , Chitu sell it among others . What your doing is on the edge so any advantage might help .
The Photon M3 have FEP that are coming assembled with the proper tension, and they are said NFEP... Another reason for the choice of the printer : having less parameters to manage making it theorically less prone to user error...
That being said, all the learnings are good to take, as they will be input for the choice of the replacement (or second resin printer) as I'm already thinking that resin might have other use cases that the one I thought about initially (but not before anough prints and learnings, obviously :-). The learning curve was also there in consideration when choosing a cheap printer (just in case I don't succeed to do anything with it, which appeared now quite pessimistic approach :-) )
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Re: SilverTriple's printing stuff...

Post by silvertriple »

A small test today, as I'm getting ready for some key prints where I need supports but where I want a nice finish for some specific parts I'll talk later on with builds...
Image
Yes it looks like a multicolor print... But it is special, here, are the color is of no importance, except it helps to see the different material. Orange is PETG, and White is PLA...

And they stick enough together so PLA is a good interface support, but not enough so it is very easy to remove... Here is the test result:
Image
Image

It required 2 material changes in total, even with 2 layers of white PLA for the interface support (it makes it easier to remove with 2 interface support in some specific areas)...

In case you want to see the setup of the supports in BambuLab Studio, it is here :
Image

On the next step, I need to check them without bridging supports for some very specific use case I have in mind...
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Re: SilverTriple's printing stuff...

Post by Dadio »

That looke virtually the same on top and bottom 8)
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

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Re: SilverTriple's printing stuff...

Post by silvertriple »

Dadio wrote: Fri Apr 21, 2023 5:44 pm That looke virtually the same on top and bottom 8)
Exactly :-). I'm looking forward to see what will be the result applied to a chassis for example...
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Re: SilverTriple's printing stuff...

Post by Dadio »

I'm pretty sold on getting a P1P and adding a few upgrades as I can afford them.
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

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Re: SilverTriple's printing stuff...

Post by silvertriple »

Dadio wrote: Fri Apr 21, 2023 7:02 pm I'm pretty sold on getting a P1P and adding a few upgrades as I can afford them.
Well, I'm not really surprised... both P1P and X1C are good printers, although there is still a few issues, like all printers... I printed already a lot with the X1C, and in terms of parts printed, it is probably close to what I printed within the last two years with the E5P...
That being said, I would love to see one with a bigger bed, kike the one I have on the Ender 5 Plus, although I never really used the capability on the Ender 5 plus (the 50hours + print never made it as the the printer was under my desk, and when remote working, printing was a nightmare)... It's no longer an issue, but now what will be missing will be the mutimaterial capability on the E5P...
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Re: SilverTriple's printing stuff...

Post by silvertriple »

silvertriple wrote: Mon Apr 17, 2023 5:34 pm The FEP still looks good... But, I took an app on Android to measure frequencies : the frequency given bac by the FAP is about 260Hz, which mean it is probably too low... As matter of fact about the causes I can find for my problem, one is FEP not tight enough...
Replaced the FEP this morning... Frequency after replacement is about 360Hz. I will start prints again with Flex resin...
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Re: SilverTriple's printing stuff...

Post by silvertriple »

Even with the replaced FEP, it seems I have no luck with this resin...
- tried to change support configuration with more supports, even added inside the tire for some specific cases
- changed the orientation

It's not :
- température conditions
- bed levelling
- exposure issue
- fep tension

I'm puzzled... Need to think more...
I buy kits to build and ru(i)n them :-)

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Re: SilverTriple's printing stuff...

Post by Dadio »

silvertriple wrote: Sun Apr 23, 2023 6:25 am Even with the replaced FEP, it seems I have no luck with this resin...
- tried to change support configuration with more supports, even added inside the tire for some specific cases
- changed the orientation

It's not :
- température conditions
- bed levelling
- exposure issue
- fep tension

I'm puzzled... Need to think more...
That's really annoying .
Only other things I can think of and I'm sure you have too are to filter the resin in case there are semi cured lumps floating about and is the resin thoroughly mixed as it can separate out , both are so basic though I can't believe it either .
Does the resin have a once opened use within 5 days type of expire date ?
Have you tried going back to the original resin you tried just to rule out a mechanical issue , unlikely but might be worth a try.
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

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Re: SilverTriple's printing stuff...

Post by silvertriple »

Dadio wrote: Sun Apr 23, 2023 6:35 am
silvertriple wrote: Sun Apr 23, 2023 6:25 am Even with the replaced FEP, it seems I have no luck with this resin...
- tried to change support configuration with more supports, even added inside the tire for some specific cases
- changed the orientation

It's not :
- température conditions
- bed levelling
- exposure issue
- fep tension

I'm puzzled... Need to think more...
That's really annoying .
Only other things I can think of and I'm sure you have too are to filter the resin in case there are semi cured lumps floating about and is the resin thoroughly mixed as it can separate out , both are so basic though I can't believe it either .
Does the resin have a once opened use within 5 days type of expire date ?
Have you tried going back to the original resin you tried just to rule out a mechanical issue , unlikely but might be worth a try.
I'll need to reorder the first resin, as I don't have it anymore...
There is no such indication on the bottle about "use within 5 days after opening", but looking attentively there is a metion about 5/30°C on the bottle... Could it be that the resin while printing is actually going upper that temperature 30°C? I decided to do anoter try but with heater off, to see what it gives. I'm at a point where I could try anything (I've noted than doing a full exposure of 50 s for cleaning the fep result in giving an exposed sheet a bit hot, so it might be a reason...
And for the mechanical issue, the single fact that it is happening independantly of the height makes me think it's not a mechanical issue... but temperature maybe one reason, as it is generally an issue when it's in area where there is a lot of surface to expose to UV...
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Re: SilverTriple's printing stuff...

Post by Dadio »

I can't really believe it's mechanical , I wonder if the 50 second exposure to clean the FEP overheated it and affected the tension ? Your probably right about the temperature climbing during the print , that sounds feasable .
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

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Re: SilverTriple's printing stuff...

Post by silvertriple »

Dadio wrote: Sun Apr 23, 2023 10:39 am I can't really believe it's mechanical , I wonder if the 50 second exposure to clean the FEP overheated it and affected the tension ? Your probably right about the temperature climbing during the print , that sounds feasable .
the 50 second exposure correspond to a bottom exposure... And basically, it is the same as advised for the Resione F80 I used before on that aspect...
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Re: SilverTriple's printing stuff...

Post by Dadio »

silvertriple wrote: Sun Apr 23, 2023 12:26 pm
Dadio wrote: Sun Apr 23, 2023 10:39 am I can't really believe it's mechanical , I wonder if the 50 second exposure to clean the FEP overheated it and affected the tension ? Your probably right about the temperature climbing during the print , that sounds feasable .
the 50 second exposure correspond to a bottom exposure... And basically, it is the same as advised for the Resione F80 I used before on that aspect...
Again I can't believe they would suggest an exposure that might be harmful to the FEP , no idea sorry .
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

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