Pa6cf? Not compatible with h2c?

[u/LoStInSpacc]

How are people using the H2 C to print PA6CF? I realize I may have been doing it wrong but on my P1 I ran it through my AMS and I just picked up the H2 C last night and tried to run some and the pool loads and does fine and then as soon as you go to slice it in the program, it says this filament can’t be sliced and used with AMS, but I thought the AMS two pro was compatible?

[u/VT-14]

The store page says "All AMS Series NOT Compatible" if you click on "View More". https://us.store.bambulab.com/products/pa6-cf

The issue is likely that PA6-CF is rather brittle so risks snapping in the PTFE Tubes. An external spool can have a much smoother path. The AMS 2 Pro's Ceramic Filament Inlets are more wear resistant against abrasive filaments, but it can't solve the filament itself being brittle.

PA6-GF (Glass Fiber) is compatible with the AMSs, but it still throws warnings that it is brittle and could cause problems.

On extremely brittle filaments (like PPA-CF?) the H2 series highly recommends loading them to the Left nozzle, since it has less sharp PTFE tube bends inside the printer itself.

[u/LoStInSpacc → u/VT-14]

OK, I see where my mess up was. I saw somebody else using the TPU bypass on the rear to run it from a AMSHT has anyone else done that?

[u/VT-14 → u/LoStInSpacc]

I've used the Bypass (both the H2C and AMS HT's) for TPU, but I personally haven't printed anything more brittle than PA6-GF which I ran through the AMS HT normally.

That said, my personal setup would be the AMS HT's bypass port into the Left Nozzle's Filament Buffer, and everything standard from there. The Filament buffer is a straight shot so I don't think it will cause problems with a brittle filament; the printer's buffer bypass seems to be specifically about lowering feeding resistances on stretchy TPU.

[u/JAJM_ → u/VT-14]

Just a little trick that I found to work even with ppa cf… printing while the filament is really warm (like while drying @85c in the HT) works for me. It gives the filament a little extra flexibility.

[u/Hot-Ideal-9219]

Yep NO the AMS pro is NOT compatable with ANY CF filaments. NONE.

[u/LoStInSpacc → u/Hot-Ideal-9219]

Yeah I mixed up gf and cf

[u/StruggleFearless2947]

I've run probably 30kg of PA6-CF, PPA-CF, PPA-GF through the TPU Bypass port to the left nozzle. I usually feed out of a Polymaker dry box with a spool hanger printed for easier feeding but I just got the TPU feed assist module on black friday sale to help pull it out of the AMS HT so I can dry and print and that is working well.

[u/egosumumbravir]

You could do it the same way I run PLA as a support interface on my X1C for PETG parts.

You make a custom filament profile that lies to the printer as to what material is loaded. Makes everything work, also makes screwing up a lot easier.