Can too good adhesion be countered by lower bed temps? (lemmy.world)

submitted 9 months ago* (last edited 9 months ago) by cosmicrookie@lemmy.world to c/3dprinting@lemmy.world

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My prints get very good adhesion to the bed, especially when doing prints with large adhesion areas. So good, that after the print is done, I actually have to wet the surface with alcohol and put it in the freezer for it to let go! (edit: I print with PLA)

My question is, if the adhesion could be a bit less violent, if I lower or increase the bed temperature? I have an ender 3 v2 with the original glass bed (it has some black layer on top of the glass).

I know that there are tons of alternative beds that I could buy, but I'd rather keep this bed if I can counter the too strong adhesion

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[-] RarePossum@programming.dev 1 points 9 months ago

I'm not too experienced with this, though I have the same model, but wouldn't increasing the temperature lower adhesion? Part of the reason it detaches is the thermal contraction as the bed cools. If you raise the temperature more there's a great delta in expansion and hence more contraction. This does require waiting, which can be annoying though.

[-] cosmicrookie@lemmy.world 1 points 9 months ago* (last edited 9 months ago)

I already have to wait with some of the prints only come off If I place them in rhe freezer. It makes good sense though that with higher temperature it will shrink more when cooled. Maybe I should try this. I print at 50c bed temp

this post was submitted on 11 Feb 2024

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