H2D + AMS2 pro NOT working

Bambu Lab H2D
1

Hello there,

I Just received my H2D and AMS 2 Pro combo. I removed all the packaging and did all the self checks.

I was ready for the first print and the AMS 2 would load the filament to the Right extruder. It reaches the extruder and after like 5 seconds it pulls back again, the AMS will try a few times and then an error appears, that the extruder might be blocked.

Switching to my original AMS worked first try with no problems.

Switching back to the AMS 2 and the exact same problems arrive. The PTFE tubes are pushed in all the way, the AMS is on the corresponding nozzle. Firmware is up to date xx.xx.19.47.

Using either nozzle with an external spool works perfect.

It’s the combo of the AMS 2 pro and H2D that doesn’t work. First I thought It might be the buffer but since the original AMS works fine I dont know anymore.

2

I assume you get the same error no matter which slot in the AMS2 you use?

What is the error message?

Have you confirmed the AMS2’s PTFE tubes is clear of obstructions and easy to pass filament through?

Confirm the PTFE tubes are not making any tight bends where it is either leaving the AMS2, or entering the H2D.

3

If it runs the filament for that long, its getting close to the toolhead if not all the way there, so I’m assuming there is a problem in the buffer. However, because the original AMS works it kinda pours water on that guess. A second way to test the buffer is to simply use the second entry port. Ultimately, it leads me to believe there may be an issue in the AMS 2 Pro’s sensors. Unfortunately, I don’t know enough about them to guide you. I’d say reach out to Bambu.

4

It gets to the toolhead, doesnt work on both buffers

5

I had the same problem. I disconnected tube and put it again in buffer till the end. now it works fine.

6

It doesnt work, I also marked the length the PTFE tube goes inside the buffer and it’s the same for both the old and new AMS. Im really out of ideas

7

That would mean both buffers are not working, but they are with the original AMS

8

Maybe I didn’t explain it well. Basically, I’m saying try both buffer tubes (which you did), and if that didn’t work reach out to Bambu.

9

I had an issue with the filament which was making it to the extruder from teh AMS’s but only printing on one hotend. I was getting extruder errors and AMS errors. Support wanted me to take off the hub in the H2D. I already was suspecting as the hub as the sliders as different tension and were ending up at rest at different positions. After I took everything off, I noticed the sliders were in the same position. Turns out the tube going from the buffer to the toolhead was the culprit. I had messed a bunch with the tube going into the H2D but not the one coming out of the buffer. All is well now.

10

This happened to me too! Cannot get it to load filament from AMS Pro. Get error messages check spool and ptfe tubes. I’ve changed them all. Still the same problem.

11

Where the desiccant goes, there is a black and white connector, I used a screw driver and pushed on the white connector and I had a feeling in went in further, let me know if this solves the issue

12

I only see the entry to the ptfe tube. If this is what you mean it is securely fastened. Thanks!