Best drying temperature for Bambulab PPS-CF?

[NeverDie]

The Bambulab store says 100-140C, which is a very wide range:

but the advice on the Bambulab PPS-CF packaging says 120C plus/minus 10C, which is also a wide range, but somewhat contradicts the advice from the Bambulab store, because it would exclude 131-140C.

I need just one number. What is the Best number? Should I go for 130C since that’s the highest number that meets both sets of constraints? Or do neither set of instructions know what they’re talking about?

[Gerrit]

Simple rule here. Hotter means faster drying. What is important is that you stay below the glass transition temperature (Tg) of the material.
Otherwise your filament starts to deform.

[NeverDie]

I need a number, not a ride… I mean, I need a number, not a theory.

[Gerrit]

I would say 120 degrees C then.

[maximit]

Also what are you using to dry it? I hope its a proper blast oven with good temp control. I did print some Fiberon/Polymaker PPS-CF straight from the packaging and it came out good. The Bambu PPA-CF was a different story and needed drying.

[NeverDie]

@maximit

Also what are you using to dry it? I hope its a proper blast oven with good temp control.

Yes, a proper blast oven very similar to what Clough42 has.

[StreetSports]

I would fillow what it says on the roll because that was probably set by the actual manufacturer of the filament. I would personally set it to 110-115 and test.

You can always try a higher temp if it doesnt work. Hard to go back and try again when its melted together. Plus the oven may have hot spots

[Wylanie]

I’d go with 130C as a safe middle ground. It’s the highest number that fits within both recommendations.

[NeverDie]

This is the particular blast oven model that I have:

Even though it says 1000w, it can draw just over 1500w when heating up initially. I suspect that the only meaningful difference between it and the one Clough42 has is that his may have an additional fail-safe cut-off thermal switch.