PLA sticking to Satin Sheet on CoreOne+
I always see people having a problem with PLA adhering to satin and textured sheets, but I have the opposite problem. I just completed a print that had two small areas where supports were needed, and now I can't remove the base layer of the support area. The rest of the print released fine, but this one layer is STUCK. I'm not wanting to go after it with a metal blade, but all my plastic scrapers are not doing the job.
I clean the plate after every print with 95% IPA and a paper towel.
RE: PLA sticking to Satin Sheet on CoreOne+
I'd try putting a few drops of Isopropyl on the edge of the part. Hopefully that'll get underneath and get it to release.
RE: PLA sticking to Satin Sheet on CoreOne+
If that doesn't work, try putting it in the freezer.
RE: PLA sticking to Satin Sheet on CoreOne+
Thanks guys. I was able to get it off. Any insights on why it stuck there in the first place?
RE: PLA sticking to Satin Sheet on CoreOne+
Single layer brim or support are hard to remove, this is a known problem and it's not limited to PLA. There is a pending request to make the height configurable.
https://github.com/prusa3d/PrusaSlicer/issues/2605#issuecomment-508963684
I pour alcohol on the area and 'whack' it almost horizontally with a plastic scraper. The alcohol weakens the adhesion and lubricant the plate to avoid damage.
RE: PLA sticking to Satin Sheet on CoreOne+
... (I can't edit the post above). Here is a better link to the plastic scraper. They are very handy around the house, not just for 3D printing.
https://www.amazon.com/Plastic-Forwithout-Scratches-Adhesive-Stickers/dp/B09Y5WQFP4
RE: PLA sticking to Satin Sheet on CoreOne+
Usually the first thing to try is dropping the plate temperature. Also, counterintuitively, a PVA glue stick will act as a separation layer making it easier to remove the part.