Geeetech A10M or A20M extruder spacer, with rubber.

thingiverse

This is a minor enhancement designed to accommodate either the A10M or A20M printer model. The upgrade consists of a simple bracket that holds the extruder in place on top of the structure, pointing downwards towards the filament exit. This design decision helps maintain the weight's center of gravity at the top rather than distributing it unevenly across the back, potentially causing vibrations and loose structural components. To facilitate identification, I've added numbers 0 and 1 to each respective bracket. Users only need to print one piece marked with the number 0, one piece marked with the number 1, and two identical pieces without any marking in between. A hard rubber insert should be placed between these two unmarked pieces to ensure stability and minimize vibrations. I personally utilized three segments of a cut mouse pad per side for this purpose. Installation is straightforward - simply use the same bolt as the original part, paired with four M4x40mm screws. This upgrade also allows for more precise alignment of the spool mount with the extruder stepper motor.