I am using an AMS Pro and an AMS HT on a H2D. When using the AMS Pro on tall objects/modells I have noticed that the filament has a tendency to jam itself on itself in the spool, if you see how I mean. I am guessing the AMS is extracting and retracting the filament or is doing some manouver that gets the filament loose on the spool, enabling it to get squeezed under another part of the filament.
When this happens the H2D stops and gives an error stating that the AMS engine has overstreached itself. It is pretty easy to untangle and so far the print has continued, but with a slight imperfections in the model.
I am guessing there is not a lot to do about this, or has anyone found something clever to do?
I am using only BL filaments and PLA matte almost always since I have yet to master more demanding filaments. I guess the behaviour could be filament type dependent as well?
It sounds like you’re describing over/under tangles on the spool?
Are you printing multicolor where you have filament pulled back onto the spool a lot?
Single color prints obviously don’t do that. Once the filament gets fed, it keeps feeding until the print is done and then retracts.
If you are printing multicolor, could you have a real over/under tangle? If you aren’t careful with the tail when loading filament and get a real over/under tangle, on a multicolor print the frequent retractions can kind of help with a tangle. It doesn’t untangle it, but it may let the AMS keep feeding for longer.
There’s always respooling to clear tangles or get a neater spool that is less likely to try to jamb up on you?
Hard to know what’s actually going on but it is easy to make real over/under tangles when loading filament. Or maybe it’s just some feeding issue that the AMS misinterprets as a jamb? I have only seen this kind of thing once when it actually was an over/under tangle but hard to say if that’s what is happening for you. Maybe others have ideas. Good luck.
I am actually printing a single color print but I am also using a support filament. I have one on each nozzle. But this happened half way up a towering structure where there is no support filament, so it is a bi odd. The print I am doing is purely functional so it doesn’t matter if this got a few bumps along the way.
