Winson
May 16, 2016, 12:51am
18
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
May 16, 2016, 12:57am
19
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.
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.
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
May 16, 2016, 1:24am
22
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.
I sent you an email Winson.
marcmoirc@aol.com is my email. Hope I can help!
-Marc
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…
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!!
Taking a picture with the flash on top of a photosensitive resin is definitely not recommended…
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.
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
May 16, 2016, 11:26am
29
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.
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
Goodluck!
Charlotte
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.
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?
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
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
1 Like
Winson
May 17, 2016, 12:08am
34
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
May 17, 2016, 12:12am
35
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.
Winson
May 17, 2016, 12:15am
36
Hi, good news for me. But I wonder if I could clean the inside of the tank with the rainx as I want to change the resin but don’t want to buy an extra tank, the tank is expensive in my country, So did you hear someone used it to clean the inside?
Winson
May 17, 2016, 12:17am
37
okay, I am contacting with formlabs now, I will update you with the latest news.
