LOL.. most modelers on this board do models for free.. Besides.. by Paramount and Trek Licensing, if a Modeler makes a model with Trek material, and puts it up for download, it is free to the world, unless it is copy written by a game developer or publisher.
Paramount's Trek license states all artwork (including 3D renders) that are related to Star Trek or use Trek copy written or trademarked material are automatically property of Paramount Studios and shall be distributed by law as free share... Meaning no one can charge the public for downloading it.. Unless it was created under specific licensing of Paramount Studios, CBS Studios, Viacom or Trek Licensed Publisher.
Making the model on the other hand is up in the air.. Someone can charge for a model to be made that does not have Trek Trademarked or copy written material on it.. that is unless they want to pay Paramount, Viacom, and CBS or any other entity (Quicksilver, ADB, Various artists for Trek books, game developers, game publishers etc.) royalties on the render. If they are charging for Copy written material or trademarked material as licensed by Paramount, CBS, Viacom, etc.. they should be reported to Paramount so they can collect royalties on their License.
Making a model with Trek Copy written or trademarked material put out for download is, by law, suppose to be free to the public.
That doesn't mean a Modeler can't accept a donation for their time and hard work (not a forced donation either, it has to be volunteered).. but the modeler can't charge for copy written material.
That is something to think about..
Best thing to do is check Battle Clinic and see if a model you are thinking of has already been made and just download it from there.
In the case of Starfleet Command.. here is an excerpt from the EULA of the Orion Pirates game.. Notice the bold print.. It states derivative works, which includes models.
SOFTWARE USE LIMITATIONS AND LIMITED LICENSE
General Product License. This copy of Star Trek Starfleet Command(R) :Orion Pirates(TM) (the "Software") is intended solely for your personal non-commercial home entertainment use. You may not decompile, reverse engineer, or disassemble the Software, except as permitted by law. Interplay Entertainment Corp. and its licensors (Paramount, Taldren) retain all right, title and interest in the Software including all intellectual property rights embodied therein and derivatives thereof. The Software, including, without limitation, all code, data structures, characters, images, sounds, text, screens, game play, derivative works and all other elements of the Software may not be copied, resold, rented, leased, distributed (electronically or otherwise), used on a pay-per-play, coin-op or other for-charge basis, or for any commercial purpose. Any permissions granted herein are provided on a temporary basis and can be withdrawn by Interplay Entertainment Corp. at any time. All rights not expressly granted are reserved.