Anyone running a BIQU H2 Extruder?

I just use defaults in Cura 4.x for the most part. For the machine I selected the BIQU one (it uses the same extruder) and then I just adjusted the bed size to match the ender 3 max. If it’s grinding still after using those klipper settings then it’s most likely defective. I’ve read a few other situations like yours, the early models had a very very tight tolerance for filament which caused lots of issues. Have you tried different filament by chance or measured your filament size? I also remember reading that some users had to disassemble and reassemble the gears for pulling filament …

Ah, good call on using the Biqu BX Cura profile, I’ll try that now, and edit the bed size accordingly, like you did.

Thanks again!

Good luck, let us know if it works!

Sadly no… Biqu H2 V2 Extruder - grinding noise, no filament - YouTube

I am going to order a replacement from Amazon now.

Thanks for sharing your configuration!

Ya that doesn’t sound good at all. Good luck.