First resin print failure

It had to happen, for some reason a print did not release.

This is another area where FDM and resin are very different. With FDM it keeps going and you end up with a lot of spaghetti and goo. With resin the print keeps moving up but the failed layer stays on the release film, and just gets re-cured as the print go - you end up with one aggregate layer.

So, poor out the resin (need funnel and filter) in to a bottle. Remove stuck layer, that was easy. And ready to go.

Well, not quite, for some reason it kept saying foreign material detected. I cleaned out the tray, both sides, and started again and OK. In fact, it seems once can remove failed print layer with a fingernail (in a glove) without pouring out resin even.

I have noticed a scratch on the film though, so have more coming and will have he fun of replacing the file. That may be a job for tomorrow.

I have no idea why it did not release. The print was the same as previous.

Update: sorted release film, seemed good, but had another failure - which highlights a feature of resin. With FDM a failed item would wreck the whole print, the spaghetti sticks to the nozzle, and you end up with a total failed print. With resin, one can have a partial failure, like this.