this post was submitted on 28 Jul 2023
17 points (100.0% liked)

3DPrinting

15250 readers
34 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
 

Title sums it up, any other tips about PETG appreciated though.

you are viewing a single comment's thread
view the rest of the comments
[–] odious@feddit.de 1 points 1 year ago (1 children)

Regarding other tips about PETG: make sure the filament is dry. Wet PETG will pull lots of strings, no matter how "good" you're tuning your retractions.

[–] PoetSII@lemmy.world 1 points 1 year ago (1 children)

Is this just down to the humidity?

[–] kale@lemmy.zip 1 points 1 year ago (1 children)

It happens faster with high humidity. But it will happen in drier air too. A dry box will keep PETG dry, but not necessarily dry it.

It's not uncommon to have PETG with problematic moisture content directly from the factory, even shrink wrapped with desiccant.

I print PETG from a dry box set to 55C. Even when my print is done and it sits for a weekend (rare), I keep the dryer on. If I have to swap a spool, it goes in a dry box that I keep below 20% RH. I also use a lot of cheaper PETG, though. It's my least favorite filament to print so far, but one of my favorite to make functional held objects since it's one of the densest polymers used in printing and feels heftier than most 3d printed objects.

[–] PoetSII@lemmy.world 1 points 1 year ago

Gotcha. I'm new to printing in general but the use-case here is a wearable helmet for a costume so seems like PETG is worth the hassle. Definitely getting a lot of stringyness at my current settings though so maybe some extra finegaling is in order.

I kinda live in a swamp tho so it's pretty humid at all times here, though the printer is in the same room as a dehumidifier lol.