Hi,
I've just swapped to a new PLA (Sunlu wood filled) and I'm getting strange lines in my top layer.
It is like some areas are just not being extruded at all.
Any ideas how I go about finding the cause of this?
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: or !functionalprint@fedia.io
There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml
No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
Be respectful, especially when disagreeing. Everyone should feel welcome here.
No porn (NSFW prints are acceptable but must be marked NSFW)
No Ads / Spamming / Guerrilla Marketing
Do not create links to reddit
If you see an issue please flag it
No guns
No injury gore posts
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 ![]()
Moderation policy: Light, mostly invisible
Because that is what is happening. Wood filament is just PLA mixed with wood particles suspended in it. These particles are very likely getting stuck in the printer nozzle and stopping any more filament from being extruded. This is not the only cause of under extrusion like this but the most likely.
Given it clears its self up it is probably that the blockages are clearing themselves eventually with enough time/pressure/heat behind it. Or it could be a particle moving around inside the head (which I think is less likely).
Best thing is probably to get a larger nozzle that will be less prone to being blocked by larger particles in the wood PLA. You can also clear the nozzle as well with a tiny needle or a cold pull of the filament. This may help for a bit it there is stuff built up inside the nozzle or if it the blockage is self clearing it may not help at all (but wont hurt anything). But the better solution is likely a larger nozzle.