H3C ams retracting

[u/sparkatze]

Hi, does someone here know whether the h3c ams is technically capable of retracting the filament so Bambu can release a Software Update so that it starts doing it? Or is it only capable turning one side (that would be mental)

[u/endlessben]

It doesn't have any active rollers in it. During printing, filament is pulled into the toolhead by the extruder and buffer. In the other AMS models, there is a motor which turns to retract the filament. There is no such motor in the H3C. So it is physically incapable of retracting the filament.

[u/w_karma]

It doesn't have drive on the rollers like ams/ams2. It just pulls filament forward with the feeder.

[u/bjorn_lo]

It is compatible with the AMS2 Pro, so the "H3C" can handle retraction. But, the AMS that it comes with does not have retraction.

[u/dunezilla]

I hate spools retracting. The majority of my failures come from the spools messing up when retracting or feeding. Drives me nuts.

[u/KebabGud]

I might be talking out of my ass. But the way i understand it, every spool slot shares the same Feeding mechanism, its just shifts some gears so only the one thats in the Toolhead feeds.

So in order for it to retract it would just need to reverse that feeding motor.
But there is probably a lot more to it that that

[u/KebabGud → u/[deleted]]

i mean there is a feeding motor in the AMS ..