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Cliff already ahead of you and sadly it did not change a thing. Latest failure perforated the FEP ( I cleaned the LCD already). I joined the Staurn FB group and I got some good advice. I am gonna try increasing the lift distance to 9mm. I shouldnt have lowered it below 7mm (which is default but that failed twice regardless). It has to do with the vat size and the FEP. PLate needs to be pulled up higher to completely peel from the FEP. Hopefully that fixes the issue.
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Did it actually "Perforate" the FEP, or 'tear" it? Perforation implies something was stuck through it.
Is the FEP actual Elegoo OEM film? Last year I got cheap, bought some 3rd party stuff and had problems with cured resin sticking to it and tearing it up.
Increasing the lift is a good idea.
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05-30-2021, 04:57 AM
(This post was last modified: 05-30-2021, 07:36 AM by ChinToka.)
Did the change in Liftspeed (Botton and Lifting Distance?) help? I have the same issues with my Mars and Saturn now that i use FlexPlates (No Wham Bam). They are quite nice but since them almost all prints fail an get stuck on the FEP early or late in the print.
I clean my Resintank with Window cleaner instead of Iso. Iso washes out the transparency, window cleaner does not. After that i wipe it clean with paper towels and polish with a microfibercloth.
I also noted, that on my Saturn when i print directly on the printbed, i loose 2,2mm height on the model, comperared to the Mars... can i compensate for that other than adjusting the model?
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To me it looks like a couple of things might be giving you grief.
I use iso to clean the flex and the vat. In using window cleaner, you are introducing new chemicals to the fep and the vat and it could be leaving a coating on the build plate.
Try iso only.The other thing that sticks out in my mind, is the bottom layer exposure is at 35.
Now dependant on the brand and colour of the resin can change this figure. Try printing the elegoo rook (small print) and only change the bottom layer exposure to 50. If that works, reduce by 5 increments until it falls off again. Then use the increment above. Beware, the higher the exposure time on these settings the lower the overall life of the LCD.
There are Elegoo recommended settings and unofficial settings from users that users find work better for a range of resins. If I can find them I can link you to them to try.
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So, nothinhg sticks anymore. Nada, zip! Removed the FlexPLate (16€ down the drain), relevled the plate, cleaned the vat with Iso, Nada. Cleaned the vat again, releveled again, apllied some silcone grease... nada!
Fuck this!
Everything was fine before i attached the FlexPlate. Now, no printer is printing anymore!