All of the the above (slice gen pla what I use as well default nothing changed.) + hardened steel nozzle installed or your normal one will wear out after a single roll of filament.
Not worth the hassle of ruining your nozzle so make sure to buy a hardened steel one before starting printing any abrasives! (glow, marble, wood, carbon fiber etc)
It depends on how the Marble effect is created, most of the time it is coloured pigments of PLA.
As noted by @lion7718, this is the most common style.
Sometimes the company chooses an abrasive material, yet it is less common in more recent filament offerings, with older filaments often including abrasives.
The marble filament offered by BL does not include abrasives and no hardened steel nozzle is recommended.
Nozzle compatibility
Hotend with Hardened Steel Nozzle 0.4 mm / 0.6 mm / 0.8 mm
Hotend with Stainless Steel Nozzle 0.4 mm
I like the recommendation, and I agree that a hardened steel nozzle is strongly recommended for all printers because it lasts longer and will better deal with filaments that people may not be aware have additives.
Yet, if you only print plain PLA or Marble from the last couple of years, then the hardened steel nozzle isn’t required.
I’ll take a note @MalcTheOracle , I had not thought of them moving away from the old style additive abrasives to coloring instead.
I’ll actually check any new marbles that I buy, I just looked and yeah - I based my assumptions off all my rando spools here marked clearly that there are chunks hehe.
@malctheoracle
I bought a spool of marble PLA from Microcenter (inland brand) a few months ago and that was abrasive. It ruined my nozzle after only half the spool. I honestly will still buy it though because I have a hardened nozzle now and I think the abrasive ones look way better since the colors don’t blend at all.
Did I say all, no, did I talk about BL filament, yes, does that have abrasives, no, has it been around for a couple of years, yes, you see the pattern.
When you ignore the context and everything I said about “most” and “less common,” you then pretend that what I said meant something not written.
You can make many false statements/assumptions if that is your aim, those who read what is said, who do not have a desire to reframe things to suit a position, understand what I wrote.