Solder helper

I decided to remix the original model, due to the choice of a different connector and switch. From the original model, I chose the variant with a 40x10 mm fan. All changes are listed in the changelog below.The entire model is redrawn in OnShape and everyone can customize it cad.onshape.com.Parts List2x M3 x 10 hex screw2x M3 x 20 hex screw1x 4010 fan (aliexpress.com) 1x switch (aliexpress.com)1x plug (<a href="https://www.aliexpress.com/item/32883658107.html?spm=a2g0o.productlist.main.31.338e371