H2D offset nozzle calibration failed 0300-4010 130631

Bambu Lab H2D
1

I attempted a TPU print today via the rear exit on my AMS HT.
It was the biggest pain in the backside ever, worked and didn’t work, kept stopping saying motor overload, I just pressed resume and it did, but the finished product was terrible.
I could print TPU on my X1C easily with no problems, sadly I fell for the BL hype around the AMS HT, it is useless!

Anyway after giving up on the TPU print, I wanted to print a PETG roll holder, but it keeps coming up with the above error, I have checked for blockages there aren’t any.
I have had to turn off the Nozzle Calibration test otherwise it just fails everytime.
Has anyone else come across this, the error code does not come up on wiki or anywhere else, I can print without it but would prefer to have it all working as it was yesterday and the previous 4 weeks until attempting TPU, arghhhhhhhhhhhhh help

2

Did you set it to dry at the same time as printing by any chance?

3

No, I dried the TPU before use, this was my next print from the normal AMS

4

You can’t do that, the AMS HT doesn’t dry and print at the same time. :confused:

5

The offset sensor is located at the rear of the bed plate. I’ve encountered intermittent issues with it when printing with 65°C hot chamber. To work around the problem, I had to switch the offset setting from “auto” to “off” just to start a print like you. These issues occurred with the older firmware, and I haven’t yet had a chance to test the new firmware to see if there’s been any improvement.

You might also try removing the bed plate, taking out the two Allen screws, and checking that the 2-pin connector is fully seated mine was, but it’s still worth double checking.

I do have a spare sensor on hand, which I plan to test to determine whether the problem lies with the sensor / wires or is a software bug.

They can develop filament buildup on the offset grill holes, but you probably would have noticed it. The black square is the sensor part.

Which TPU filament and Shore hardness were you using, or were you using the Bambu AMS TPU ?

AMS-HT the tpu port on the lid ?

6

TPU you can (or any filament for which you use the TPU exit point rather than the funnel) but the TPU filament will swell and the extruder will have a hard time to push it, flow will reduce until it stops. This was the reason for my question.