[–] 2 points 1 week ago (2 children)

@user_6282638282 I've had similar problems. It may be the coating has been removed from the bed. It happens when filament sticks too much, PETG is pretty bad for it. I tend to leave my bed to cool so the piece pops off itself. That doesnt always work. Following other advice to reduce adhesion like bed temp, offset etc may work.

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  • [–] 3 points 1 year ago

    @KiloGex you need to tune your printer for the cold. Exposure times need to be longer and rise times slower. The set reaction is slower and the resin more viscous.
    I managed with my printer in similar temps. Clean up is also more difficult in lower temps. I don't have the link I used, others may suggest.

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  • [–] 2 points 2 years ago* (last edited 2 years ago) (1 child)

    @Krauerking yeah, yuck. The two point with Calcium chloride gives this insight. It has Relative humidity of around 33. If the offsets are constant then they may be worth using, with the ick factor of course. If the offsets don't make sense then the detectors are shot and fit for the bin.
    You can get calcium chloride at the hardware store, it's used as Desiccant for damp areas.

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  • [–] 3 points 2 years ago (1 child)

    @Krauerking @PlasticExistence they'll have subtly different drying profiles. Silica gel had a higher capacity but will maintain a generally higher relative humidity. Check the graph here out https://www.impakcorporation.com/desiccants
    Activated alumina doesn't appear to be as effective as molecular sieve at low humidity from a lit. search.

    You should check for air leaks in the system first. When I lose Desiccant this is usually why.

    P. S. Silica gel can be regenerated.

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