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

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

top 11 comments
sorted by: hot top controversial new old
[-] HewlettHackard@lemmy.ca 3 points 9 months ago

You could always try it…

I use PEI instead of glass and find that a thin layer of glue stick works great for helping sticky materials release.

[-] cosmicrookie@lemmy.world 1 points 9 months ago

So you use glue to make adhesion worse? That's very interesting!

[-] HewlettHackard@lemmy.ca 3 points 9 months ago

Yup. My kid found the idea hilarious when I explained why I’d swiped a washable glue stick from the arts and crafts box.

It hangs on well, but also makes removal easier.

[-] rambos@lemm.ee 2 points 9 months ago

Adhesion can be better, but it also acts as a release agent. If you are printing PETG on glass always use glue, for PLA it shouldnt be needed.

[-] cosmicrookie@lemmy.world 1 points 9 months ago

I am in deed printing with Pla but it sticks waaaay too well onto the surface

[-] rambos@lemm.ee 2 points 9 months ago

In my experience PLA just pops off the clean glass when cooled to room temp (holds extremely well if bed is at 45C or more). I have some tips, but only to improve adhesion xD You can maybe try less squish on the first layer (lower flow rate or increase nozzle distance a bit) or just use thin layer of glue. Too low or too high bed temp can ruin bed adhesion, but feels like wrong approach imo, still worth a try

[-] thisbenzingring@lemmy.sdf.org 1 points 9 months ago

glue or hairspray

[-] kensand@sopuli.xyz 2 points 9 months ago

I use the washable gluesticks for my polycarbonate prints. I just put PC prints under warm water for a few minutes and they pop right off. Gluesticks generally reduce bed adhesion though IME, so it's a fine line to walk; I never use gluesticks with PETG for example because then the parts don't stick to the bed enough.

[-] RarePossum@programming.dev 1 points 8 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 8 months ago* (last edited 8 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

[-] tagginator@utter.online -2 points 9 months ago

New Lemmy Post: Can too good adhesion be countered by lower bed temps? (https://lemmy.world/post/11829420)
Tagging: #3dprinting

(Replying in the OP of this thread (NOT THIS BOT!) will appear as a comment in the lemmy discussion.)

I am a FOSS bot. Check my README: https://github.com/db0/lemmy-tagginator/blob/main/README.md

this post was submitted on 11 Feb 2024
9 points (90.9% liked)

3DPrinting

15534 readers
42 users here now

3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: !functionalprint@kbin.social or !functionalprint@fedia.io

There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml

Rules

If you need an easy way to host pictures, https://catbox.moe may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![](URL)

Moderation policy: Light, mostly invisible

founded 1 year ago
MODERATORS