This is PETG, one was left out in about 40% humidity the other was dried to about 20%
As someone who happened upon this and doesn’t know anything about 3D printing, why? Does the moisture make the ink(?) print poorly?
When the filament goes through the hotend, any moisture in the filament will boil and make the filament all bubbly and not extrude well.
Do you ever mix two filaments for color fun? If so, do they have to have same moisture content
You can get multicolor filaments but probably not "mixed" in the way you're imagining, like multicolor toothpaste as soon as you start using that, it would just mush into one combined color (and you probably could've just bought a nicer version of whatever color it combined into anyway).
Instead color is usually mixed along the length of the filament, gradually shifting color as layer after layer comes out, creating a multi-color gradient effect in the print. So-called "fast change" filaments change color quite quickly, transitioning to a new color as quickly as every few layers resulting in a "striped" appearance. "Slow change" filaments change more gradually, usually resulting in at most a two-tone or three-tone gradient except across very large/tall prints.
Filament changing for multi-color prints is also an option but requires either a complex and somewhat unwieldy filament unloading, switching and feeding apparatus or a tool-switcher or dual-extruders or other similarly advanced printer features.
I have a purple blue filament that is two colors side by side. It stays 2 colors after printing. It's a different color depending on the angle you look at it.
https://store.anycubic.com/products/silk-pla-dual-tri-color-filament?currency=USD
Yes. Stringy. Some filament types such as TPU are more sensitive to moisture. Dryers take around 7 hours to dry a role. If you had a way to know the moisture content I assume you could shorten that time. Again different filament types dry at different rates.
Is the one on the left the dried one?
Yes
Looks hardly better though…
I love my printers, too, but I think it's a bit much to act like the filaments are your children.
Is the one on the right the dried one?
No
Will someone divulge their drying technique pls.
I use a food dehydrator for most filaments (50-60°C for PETG, 40-45°C for PLA). Works great and cheaper than dedicated filament dryers. For storage, airtight containers with dessicant packets keep things dry. You can also check out portable power stations on gearscouts.com if you need to run your dryer in places without easy outlet access - some printers draw a lot of power during long prints.
Weird. I've never dried my filament and never have this issue.
It's PETG and I've moved to a very wet environment. Stringing and popping and a big issue here. My last place though was a lot dryer and didn't need this solution.
At first I thought it was a pretty glitter green and then I zoomed in. Oof
I strongly recommend printing out of a sealed dry box as well. There are lots of good designs based around cereal containers and molecular sieves. For extremely hygroscopic filaments like PET-CF, this is the only way I've been able to get good prints.
They are, Polydry box
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