[unofficial weekender] Friday. I've got the day off! Huzza!

[blinky465 17208xp 1]

@danlee – those spots look like “impact damage” on your screen – are you sure you’re not leaving bits of semi-cured resin in the VAT? At our local makerspace users there were complaining that the screens were failing every few weeks, whereas I’m still on the original screen on my Anycubic Photon after nearly 18 months (ok, I don’t print every week, but I’ve got about 400-500 hours clocked up  already – over a hundred platefuls, each averaging 4-5 hours).

It turned out that newer users hadn’t learned about partial failures and checking the FEP properly; and it was bits of cured resin (either on the FEP or floating about in the resin) being crushed into the screen that caused the round-blobs type failures.

 

Onto the questions:

Is your lawn in good condition? It’s covered in apple blossom from the tree at the bottom of the garden after a particularly windy night. Well, rather, the two tons of gravel I covered the lawn with a few years back are. That’s what makes keeping it neat and tidy so difficult 😉

What year is this? Surely it’s Year 2, right?

Would you like some biscuits? I would but I’d better not. In fact, it’s cutting out things like biscuits and having a cake each time we went out for coffee (we went out for coffee *a lot* during lockdown – which isn’t quite as contradictory as it sounds; we needed to walk about, and just so happened to almost always walk past a coffee shop during our daily hour of freedom) that helped pay the other half of my new guitar (the first half being paid for through painting contest winnings!)

Here’s some music for you. If this doesn’t make you sing and dance around the kitchen while making your breakfast, you’re dead inside (ok, we’ll settle for nodding your head along):

 

[danlee 22954xp 0]

@blinky465 I did used to be a bit lax with bits of resin in the tank, but after suffering from so many failed LCD screens I started straining the resin after every print, cleaning the tank and inspecting the FEP film. I’m not sure how this screen could have been damaged.

[blinky465 17208xp 0]

Yeah – when you think about it, even a tiny little bit of cured resin in the tank could cause a major problem – when your build plate presses down, unless it somehow gets pushed to the edge of the tank, at some point, it’s going to get crushed into the LCD screen (and not necessarily at the start of a print job).

I’m absolutely meticulous about going through my sliced .photon files and either deleting or connecting up every single island (even if it’s just a few pixels). I’ve only had about two or three failures in almost 18 months. If a print is successful, I just load the next file and hit go. But any suggestion of a failure and I clean the tank. Still going strong on my original LCD!

Any partial failure during printing could have caused it – if a piece of resin detaches from the main print and floats under a large-ish flat surface when the print is retracted from the resin, there’s always a chance the print job on the plate could be pressed down on top of the floating bit of resin (and crushed into the LCD).

Making sure your prints are island free is super important (I rarely use pre-supported files for this very reason).

[lludan 5474xp 2]

i keep finding these albums, almost the best thing, there is still the greatest movie ever made out there.

[sundancer 44867xp 0]

New thread: https://www.ontabletop.com/forums/topic/unofficial-weekender-friday-nough-said/

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