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SoliForum - 3D Printing Community → Filastruder → Gas bubbles inside filament
Hello guys!
I've been noticing that my filaments started to fill in with bubble gas. Any ideas of what can be causing it?
Going through a few articles around the web I found out that big extruder uses some kind of degassing zone. I also heard that ABS should be as dry as it can be (not as much as PLA but...).
I have attached a picture of it.
Thanks!
Oof. Can't say what's causing that.
But as far as humidity, PLA is MUCH more sensitive to moisture than ABS. Both should be dry, but PLA should be really dry. I have a dedicated room with a dehumidifier running on full blast for this.
This should not happen, and is indicative that the polymer either needs drying or is being extruded too hot. There is no need for a degassing zone on a Filastruder because it runs slow enough for bubbles to escape up the barrel.
To me it says you bought some inferior filament. That picture is not from water, yet more like a manufacturing error.
Why not tell us where you bought it so we can avoid them as well?
He made it himself, so a manufacturing error is perfectly reasonable. Check what section of the forum you're in.
And yes, that picture is definitely from moisture in the raw material.
Thanks to you all! Would you guys please recommend me a way to proper dry the raw material? By the way... this is an HF380 LG material. Downeasta, I checked that this material is specified for injection and not extrusion, though its datasheet seems reasonable for small extruders. What do you say?
Well I have a cheapo toaster oven. For PLA I set it to the lowest setting which is around 150 F. PLA softens at 65 - 70 C and this is right around there.
http://www.soliforum.com/misc.php?actio … mp;preview
Toaster oven, dehumidifier, or food dehydrator.
I will try these! Thanks once again.
He made it himself, so a manufacturing error is perfectly reasonable. Check what section of the forum you're in
Brain fart, my bad.
I normally don't have issues with ABS or PLA, but it's pretty dry where I live. However, living in the Sahara won't even help if you're trying to extrude PVA:
This was one of the "driest" runs. Great thing is I can just melt it in water and try again later. BTW - it also makes an excellent extruder purge. I ran some through then took out my melt filter to clean it, all I had to do was wash it in the sink!
SoliForum - 3D Printing Community → Filastruder → Gas bubbles inside filament
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