Well, PPC could, theoretically, punish anyone who does anything like this. They'd be morons to do so, but they could.We have members who have drawn up plans of Trek ships and sold them (as either books or sheets) without a license... should they feel threatened by this stance?
As for your drawings, well... here's the trick. You cannot claim credit for the design, not charge for the design. But... you can charge for your own time and energy in translating that into some other form.
So this guy... note that he's doing PPC-owned designs, not just fan-designs. Given that, PPC could come down on him.
But if he's only charging for the time and effort to make the models, not for the models themself... it becomes a gray area.
Suppose one of you were to contract me, personally, to make you a personal model of the classic 1701. I'd itemize my bill... charge for labor, for tool usage, for material... but not for the design itself. And that would, ultimately, be entirely legal.
The trick would be that I'd have to prove that I was ONLY charging for those things, and only at an "acceptable rate" (and not rolling any profit up into that). Which is, really, pretty much impossible to do unless you've got a long history of doing that sort of thing FOR profit and can provide a baseline billing record.
Here's the deal. You, David, can sell paper, printed at Kinkos or wherever. But you can't sell the content on the paper... that has to be distributed freely. You can't charge, in this case, for your labor unless you've done it on-commission (which you haven't).
But there's no reason I can't pay you $25.00 for your expenses in copying, handling, and shipping copies of your work. And that's for any work you've done, including the prints you've been working on recently. You just can't charge me for the work itself.
Sort of "Fuzzy" but that's how it would work, legally. PPC would, if they were so inclined, have to prove that you're running a "for-profit business" rather than just having a hobby and sharing some of your hobby work with others, at their own expense rather than yours.
Make sense?