You should also be sure that you don’t have a draft blowing over the bed, I started having troubles the first winter with my printer when my apartment was a bit cooler. I made a clear vinyl cover for my machine and now get very little warp even with ABS.
Kapton tape if you like the smooth look, or 3m blue painters tape if you need some serious stick for PLA. I’m using diamond age filament and extrude at 170C with a heated bed at 60C for the first layer only then I drop it to 45C
I’d say your temps are too hot for PLA, if your 200 is my 200 that is.
use hair spray
One test with hairspray worked but, I have better luck with kapton tape. I’ll keep using it.
Do you replace tape after each use or after few prints?
I replace the tape when it gets so fucked up its ruining the bottom of my prints! I don’t think it looses it’s stickiness. A wipe with acetone before a print keeps it clean of skin oils and stuff though.
Few small prints were great on tape, then larger one got wrapping. (note that I don’t heat up bad which is really convenient)
I will keep cleaning tape from now on - forgot about that.
You could pause the printing to let the material solidify once in a while.
Yeah you’ll need some heat for large prints, or really squish that fist layer down sometimes works, but leaves a small ‘rim’ round the bottom of the print. Pausing printing is probably not the best idea, you’ll get ooze and then ‘missing’ filament when it continues and the Nozzle will melt whatever bit of the print it’s near.
Another test I did 45C bed with hairspray only (no kapton tape) and it went very good.
My failure with hairspray before could be related that I didn’t put a lot of it, now I had much more.
My hair spray attempts failed, so I tried diluted PVA glue. Apply on already hot bed. Dries in seconds and usually lasts for many many prints. When it starts to loose effect, wipe clean with water and reapply. Works great for me.
Hair spray worked fine for me.
I know people are seeing improvements with all kinds of sprays and other goop treatments but I’ve been getting solid results for years with all kinds of shapes and sizes with ABS and PLA, just by throwing a cover over the machine. It’s more an issue of warping than one of adhesion.
how much is enough?
@scott_maher by cover, do you mean by making closed case for printer - or at least sides to cover any air flow?
I made a clear vinyl bag to put over the machine. People used to use the plastic bags used to cook a turkey(clever). Anything that keeps the ambient temp from being too low. This way the part cools more evenly preventing warp.
Thank you all.
After many good prints using 45C heated bed and hairspray I will stick to this for now. Cleaning glass once a while too.