Inland PLA+ marble

Hi all,

On a lark, I picked up a roll of Inland’s PLA+ in marble to run in a personal machine at home. I know with some additive PLAs (looking at you, wood) they can be super abrasive so they’re best run with a hardened steel nozzle.

Anyone have experience with the marble specifically? The internets have failed me in my searching on composition; I don’t know if it’s just off-white with darker flecks or if there’s actually stone powder in it - and I’d rather not potentially ruin a brass nozzle just to find out.

Flame test. The stone won’t burn. (Do it outside.)

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My impression was the the “marble” filament was just regular gray plastic with specks of darker plastic which will smear and “marblize” when dispensed.

Wood and Glow in the Dark filaments both have other additives which are abrasive to brass printhead nozzles.

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I haven’t used it but that’s how I figured they’d do it. Multiple colors in little blobs. Carbon fiber infused filaments are also very abrasive.

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I’ve got an Ender 3 Pro and I just printed a kid’s throwing top from the marble filament from:

https://smile.amazon.com/gp/product/B07P8YTQB5/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1

It printed fine and I’m now printing another PLA print from a Violet Silk filament and it is printing fine.
I’m using the stock extruder end and I’m not having any problems. I have a number of spares, all brass, that I can use if I need to. I upgraded the Bowden tube to a Capricorn tube and it seems to help the quality of the print.

I think it just looks a little grey with flecks of black or dark grey in it. I’ve also printed wood filament on it. I would say just based upon how the filament feels that wood is probably harder on the extruder than the marble filament, but both worked fine on my printer. (Here’s the wood print)

And the marble top:

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