3DPrinting
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.
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The muted red polyterra feels like terra cotta a little. The matte additive is really dense, so parts feel heavier than other parts (polyterra PLA and PETG are the two densest non-filled filaments I've used). Whatever the additive is, it also increases the strain to failure by a lot, so it's less brittle.
My only complaint about polyterra is that it is not as good at layer adhesion as the regular PLA/PLA+. I can't push my printer to the limit on speed without getting a part that wants to separate at the layers, so I have to slow the print speed and slow the fan down, and I usually print a little warmer.
I'm finishing up my first Polyterra PLA+ print right now. It has less of the additive so it's advertised as a satin finish more than a matte finish.
For what it's worth, I just bought my first 3kg roll of filament for a big project, and I chose polyterra PLA in black.
I usually print Polyterra PLA at 210C but I had some issues with it lifting off the glass bed on my Enders. I never tried printing it below 205C and I have yet to try it on my Neptune 3 max so maybe the lifting issue won’t be a big deal with the PEI sheet bed. It does kind of feel like a terracotta texture which makes me want to try that red out now.
I wonder if I tried printing it at even lower temperatures if I would also get the delamination issue like you had.
It’s been a while since I bought from Polymaker and I don’t remember seeing that satin finish PLA+ line before but I’m definitely going to look into it. I also saw they are now offering dual color Polyterra matte filaments which is super cool.