A Very Customizable Funnel

I made a simple funnel in openscad a few months ago & needed to change it & decided to make it more customizable. I looked at a few images of funnels on the internet to get an idea of what else to vary in the design & this is what I came up with.

Since there are quite a few variables you can change, I added a screen shot of a drawing showing what each dimension is related to. The **Small_Thk** dimension is only changable in the downloaded openscad source. I made it the same as **Thk** for