7" Microscope LED Ring Holder + CPL Filter Holder

I wanted to improve the stability of my LED ring attached to the 7" Musttool microscope which was falling down as soon as I touched it. Now it solid as a rock!

I also wanted to add a CPL filter to get rid of the glares. You may have to adjust the holder with a grinding pen or something else to insert the 37mm CPL filter.

BOM:
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Microscope:
https://fr.banggood.com/MUSTOOL-G1200-Digital-Microscope-12MP-7-Inch-Large-Color-Screen-Large-Base-LCD-Display-1-1200X-Continuous-p-1553823.html?cur_warehouse=CN&rmmds=search

LED Ring:
https://fr.aliexpress.com/item/4001128287040.html?spm=a2g0o.order_list.0.0.4b895e5bW0MTr6&gatewayAdapt=glo2fra

CPL Filter:
https://fr.aliexpress.com/item/32983323468.html?spm=a2g0o.order_list.0.0.4b895e5bW0MTr6&gatewayAdapt=glo2fra

Optionnal Monitor Holder:
https://www.amazon.fr/gp/product/B097Y3PCTD/ref=ppx_yo_dt_b_asin_image_o00_s00?ie=UTF8&psc=1
I attached a dead 12V battery to the arm to make enough weight to be able to move the