I have all my 220 stuff set up with L6-30 plugs. in order to plug into the generators, I needed an adapter. Expensive to make at the cost of the plugs but I found this on Amazon.
[Linked Image from live.staticflickr.com]

L14-30 to L6-30 adapter. $19.70 on Amazon Would be about $25 to make one.

I know a lot about a lot of things BUT I still have a lot to learn.
Life is what you make of it. So, why not make a working machine to make it easier.