I have a problem with my brand spanky new H2D( I have had it for all of three days), hopefully someone has some insight on how I might fix it (I put in a support ticket yesterday and have not heard back yet)
The right nozzle will not print, it will extrude some but not print. I get the warning “Check the right external filament spool or filament is stuck” [07ff-8010 002819]. There is no tangle, the spool is moving freely, and it slides in and out of the PTFE tube with little to no resistance. Once I click “Finished, Continue” the printer then extrudes filament and I click the “Filament Extruded; Continue” button.
At that point it just does the whole thing over again, same warning every time. The best I have gotten out of it is a few passes on the prim tower, then back to the error loop. I have swapped PTFE tubes, put in a new nozzle, moved the nozzle from one side to the other, changed to a new spool of Bambu PLA (as well as Hatchbox and Atomic), disassembled and reassembled the extruder, and I get the same error every time, it will not print from a spool or from the AMS.
The left nozzle, hooked up to the AMS 2 or hooked up to the external spool functions just fine.
You could try potentially raising the temperature of that right nozzle. I currently have an issue where my left nozzle is at a completely different temperature than what it is saying it’s at. For me it causes an extruder pressure error. But I could see that it might cause the error you’re mentioning based off of similar issue but at different pressures.
Have you checked the extruder gear to make sure it hasn’t separated? The 2 gears should not spin independently. I know you said you disassembled the extruder, but I just wanted to verify.
Just tried it set at 250, same thing. It seems to do it when it is doing the dynamics calibration or something along those lines. I tried to disable that, and still did the same thing. That said I am not sure it actually kept it from doing the calibration.
Good call, when I resembled it they two gears did not seem to spin separately or have any slack or lashing. Aside from pulling it apart again, is there a way to check that?
Please check for any broken filament in the tube after the buffer.
I encountered this issue today—about 15 cm of ASA filament had snapped on the printer side of the buffer. This made it impossible to load new filament, even though it moved freely up to the buffer.
Unfortunately, there is no filament chunks anywhere in the system. Loading filament and getting it to extrude works without issue. This has occurred since I tried my first print, that used the left nozzle. After replacing all the PTFE tubing and such it still persists.
What happens if you top load and by pass the rear buffer into the right extruder will it still produce the error?
Did you inspected the right extruder arm wheel teeth closely and see if they aren’t clogged with filament. Is the extruder switch cam positioned horizontally, with a maximum deviation of about 5 degrees to either side?
Great suggestion! It still had the error but at least now I know it is not the tubes leading to the tool head.
For the extruder disassemble and reassemble that is the guide I used and I followed it to a T. The problem was occurring, and the same, prior to me checking the extruder.
Do you happen to know how long tech support has been taking to respond? I am going on 3 days now and nada (other than the canned response that they received the ticket).
UGH! I have folks on some other printer groups asking if i would recommend the H2D. Manufacturing issues happen that I get but if it takes two weeks to resolve the issue, that I can’t recommend for someone who would be new to the Bambu ecosystem. And doubly so if they are new to 3d printing.
