Funnel/Cone Calculator
https://www.blocklayer.com/cone-patternseng.aspx
This is link for figuring out the angles and slants needed to make a funnel. Print it out full size after adding in your dimensions and use to trace onto your sheet metal
This is link for figuring out the angles and slants needed to make a funnel. Print it out full size after adding in your dimensions and use to trace onto your sheet metal