3D printing failed when using Form1+ with tough resin

[Winson]

Do you have skype, I would like to add you then that will be easier for me to get the suggestion from you. actually the wall thickness is enough for printing as i have printed this samples for nearly 3 times with normal white resin.

[Winson]

0.025 is not possible for tough resin, we can only choose 0.05mm and 0.1mm, and i have already tried 0.05 and 0.1, but none of them become successful.

[Winson]

how did they help you out? can you let me know? I will leave my skype to you, if it’s possible to add me and send me the guideline?

Skype ID: winson-qi

[Winson]

it’s only been used for 40ml, not that much, So i think maybe something wrong with it, I need to inspect.

By the way, have you used tough resin before, can you give me some picture of the tough resin?

I open the new bottle of resin and pour it into the tank for the first time, I saw some particles in it, here is the picture, I don’t know if it’s normal or not.

[Mmc2012]

I apologize, I do not have Skype, sorry! Ok I think from what I’ve read, it narrows it down to your resin tank and dust on the mirrors. I would follow the Formlabs guide to cleaning all of the mirrors and you will definitely want to start with a fresh resin tank. After a few failures you will most likely have cloudiness in the tank. Also check your date on the back of the resin bottle to assure its not more than a year old.

[Mmc2012]

Sorry I just saw your other pictures, those particles in the resin would definitely have caused your problems ! Anything blocking the laser would cause the issue that you are having. If you just purchased this resin I would contact Formlabs custom service because you may have gotten a bad bottle of resin.

[Winson]

Hello, can you just give me you email address? I will send email to you, that will be easier for both of us to conmunicate with each other.

winsonqi@126.com, this is my email address.

[Mmc2012]

I sent you an email Winson.

marcmoirc@aol.com is my email. Hope I can help!

-Marc

[metaobjects]

Yeah I find the tough resin is very sensitive to tank cloudiness and mirror / galvo cleanliness. If you contact Formlabs support they’ll give you some things to try which might involve cleaning the mirror surfaces (don’t try any cleaning until you’ve spoken to them though!) Btw if your part has a flat bottom you might be able to get away with printing it flat on the build plate without supports…

[3Dinventis]

Hello!

Be sure to clean your build Platform and your resin tank. It must be perfectly transparent or the laser will fail to polymerize. Also the mirror must be perfectly clean!

Remember to change your resin tank every 2 Lt of polymerized resin.

Let me know Let me know if there are any news.

Bye!!

[cyprien]

Taking a picture with the flash on top of a photosensitive resin is definitely not recommended…

[nothinman]

If taken with a phone, it’s a LED flash. It doesn’t emit UV; furthermore, these resins require a lot of UV energy to start the chain reaction. There’s little photoinitiator in these.

[nothinman]

Most likely:

- crap in your resin - if these aren’t air bubbles, you need to get rid of these. filter through paper paint strainer, mesh >280 (on ebay for peanuts)

- cloudy tank (but you say no)

- dirty galvo mirrors

- dirty main mirror, or the one under galvos. a little dust makes no difference, but if there’s resin on it, it will make a huge difference.

[n23d]

Never used the tough resin before but sounds like you may have a bad batch. If the part prints great with your other

resins then doesnt with the tough resin then it is the resin. When it fails do you end up with chuncks stuck to the tank?

If so you might try one last trick I have heard works for others. Clean the tank coat it with rainx (brand name for a car

window treatment that causes water to bead and run off) then add resin and print. They say it makes tank last longer

and reduces peel forces so more reliable printing. Don’t know never tried it myself.

[CharlotteJ]

Hi Winson,

I’d try to print the model without support (it’s flat on one side, isn’t it?).

In my opinion there is not too much wrong with your machine, since the support comes out nice Have you tried changing the point size of the support? It looks like your support cannot hold the model well, maybe because your point size is relatively small?

Goodluck!

Charlotte

[nothinman]

It isn’t that Charlotte, he has plenty of supports, and the cross section of the object is small. It’s laser not curing it due to dirt.

[CharlotteJ]

I’m not suggesting that there is not enough support, but that the contact point of the supports are too small to hold the model. Could you share a screenshot of your support settings?

[mikeeclipse1]

Dirty mirrors or galvos - dragon skin on supports in your image is a tell tale sign.

Tough resin:

1: Sand build plate with 80 grit… get her nice and rough and clean.

2: Fine tuning - experiment with different heights, I find +3 work good with tough resin. ( -9 if I’m using ZVat trays… that’s for another discussion)

3: Settle for nice and thick supports

I used to be like some of you guys “What’s wrong with my print” … Now… if I have a problem, the printer is disassembled, galvos are cleaned, primary and secondary mirrors are cleaned, resin is filtered… DONE! 99 times out of 100, this solves the problem. This is assuming you have oriented the parts correctly, support material is correct, tank isn’t too cloudy, etc…

There are a ton of little things that can make or break a print on the form 1+ but it all starts with a clean printer

[Winson]

Yes ,I agree with you. But we don’t have the instruction from formlabs and even don’t know the structure of the printer, not dare to disassemble it or we will have no warrantee, so that is the problem.

Maybe you could give me more information about the printer then I could check it myself.

Anyway, thanks for your advice.

[Winson]

Hi Charlotte,

the density of the support is 1.0, and the contact point is 0.7, that’s the default settings, I haven’t change it. the only thing I have changed is the height of Z-axis, I changed it from 0.2 to 0.

I don’t know if this is the problem. Anyway, I don’t want to try any prints without the instruction from Formlabs as the tank is very expensive, if I still fail for a few times, Then I will need to change the tank again but as you know I just used this tank for a few times, it’s new.