QIDI Q1 pro spool holder stiffener

QIDI Q1 pro is a good printer but the spool holder is really too flimsy.

Maybe, one day, I will change the whole system but right now, I designed a very simple stiffener that really reduces the amount of vibrations and flexing of the arm.

I just slides into the gap between the back of the printer and the arm. You can leave it like that but you will obtain better results when it is glued or double sides taped onto the arm.

Print it in PLA or whatever filament you get, it just needs 55g of filament!
No support, 3 perimeters, 8% gyroid infill.
Print it on the bed upsidedown.