Summary

The original design was too thick and i want a minimal design, so i remixed and here there are the modification:

-The thickness of the bracket was reduced from 20mm to 10mm
-Added a version of the bracket for 200x200 buildplate (Bracket_10mm_short)
-Backplate was edited to adapt to the new bracket,some space has been left between the
lifter and the BackPlate to increase the tension-
-The Backplate hole before was 3.21mm now they are 2.88 so the M3 screw can fit it.
-There are two version of Lifter

Lifter:is the original lifter and can fit all gpu
Lifter_without_tooth: is the lifter edited for the GPU which have little space between the fan and the edge of the GPU.

TIPS:
You can use 2 lifter, one in the center of the GPU and one at the edge to better distribute the weight.

REQUIRED HARDWARE:

For one lifter:
-5 M3x25 screw
-5 M3 washer
-5 M3 nuts

For two lifter
-7 M3x25 screw
-7 M3 washer
-7 M3 nuts
-Another print of lifter and backplate

Print Settings

Printer:

AM8

                                            Rafts:                      
Doesn't Matter
                                                                                Supports:                      
No
                                                                                Resolution:                      
200
                                                                                Infill:                      
25% for everything except for the backplate which need >50%
                                                    Filament: 3djake PETG                Red Transparent                    
                        Notes:                     
!!! IMPORTANT !!!
FOR THE BACKPLATE USE 50% INFILL OR MORE AND USE 3/4 PERIMETER SHELL.
IT ABSORBE A LOT OF WEIGHT FROM GPU.