This is a mounting plate for the Biqu H2 on an Ender 5. It may work for other printers, but I've only tried it on an Ender 5.
This thing is a significant remix of the mounting plate by SeanAranda: https://www.thingiverse.com/thing:4725351
I designed this remix to work with LightTribe's MGN12 mount for the Ender 5: https://www.thingiverse.com/thing:4538709
That part was also a remix of SnakeP's well designed linear rails mod for the Ender 5: https://www.thingiverse.com/thing:3782865. Only reason I didn't use the original X Carriage is because that part has a lip that hangs over the top edge of the OEM hotend mounting plate and I wanted to add a cable guide to provide strain relieve for the wires.
Once printed it mounts to the OEM Hotend mounting plate. The two M3 screws on the left side attach the mount to the plate. The rest is pretty self explanatory. One thing to keep in mind, though... The lower M5 bolt needs to be installed BEFORE you attach the H2, otherwise the heatsink will interfere and you won't be able to get the bolt in.
My experience is that this thing provides a secure and rock solid mount when attached to the MGN12 X Carriage.