Anycubic Kobra no sagging filament holder

fill the model with small barrels for better structural stability and add an extended leg

I was constantly annoyed by the fact that the handle sags after inserting the filament and this has to do with the large holes in the handle arm.
to mount them, you need to use some force to push them in, then put the leg on and it's ready. You may have to scale the barrels because I'm not sure if all AnyCubic casts will always have the same diameter.