What went wrong here?

[darkvoivod 7112xp 0]

Pre-supported and most mini’s go pretty good.
I have a feeling I’m asking to much of the initial support and need to tilt the model more?
I don’t want to over support too much and leave the model scarred.
I’m just wondering why the initial support doesn’t show at all, instead of failing where the model becomes too heavy.

Any advise?

[blinky465 17208xp 1]

At first, it looked like a corrupted file to me. But then realised I wasn’t looking at a solid block of resin, but  a base where the supports failed. Given you can see on the “base layer” where the supports should have been (but aren’t) it suggests maybe an exposure issue – try adding a second or so per layer (if you’re on a colour LCD) or if mono, half a second or so; basically try upping your exposure time a little?

Have you just replaced the FEP? (sometimes this can happen if the FEP is too floppy or, surprisingly, too taught). I’ve found on my Photon that reducing lifting speeds (from the default 65mm/sec to about 40mm/sec) helps reduce failures like this too.

[darkvoivod 7112xp 0]

Thanks, I have just replaced the FEP, but other prints came out fine.
Those where either pre-supported or files I had allready succesfully printed.

I played around with the angles a bit. I think I found the sollution. I’ve been a bit impatient and did not want to angle the model in such a way it would add an hour or more to my print time. But I now think a flat model such as this just creates to much suction this way and pulls away from the printplate.
I’ve tried a new angle. now only starting to build supports when I see hardly to any red that needs supporting.
I have now succesfully printed this model, using less supports too.
This is more time consuming in one print, but not as much as failed print.
Saves on resin and clean up too, so overal: good learning experience.

[blinky465 17208xp 0]

Ah, the old “too much suction just ripped it off the plate” problem! I learned a long time ago that the best quality prints are almost always from angling the model to be as vertical as possible. Sure, it increases print time – but I let my printer run overnight, so don’t really care between a 3hr print and a 6hr one. It also means I can fit more onto the plate at one time 😉

(sure, longer print time, but ultimately more minis!)

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