AK74U bolt / charging handle knob

thingiverse

In progress: Im trying to make a knurled handle which snaps on a cyma ak74 charging handle How i made this: I used image to stl converter by taking 2 pics of the stock handle shape. one profile i made into a negative to create a 3D 'scan'. of course scaled to actual size and increased by 1.05 so it actually fit. I included the bolt handle I "scanned" if anyone wants to give it a go. the file I made was a quick demo if it actually fit on the handle (which it did) not perfectly straight, and no means of snap fitting on. it will need glue or welding, but there is very little wiggle once held on. show me your ideas