Legal / Licence

Commercial-Use Licence

What we sell is a set of design files. You download them, print the parts and assemble an airframe. That airframe is where our part ends. This licence is the one that lets you earn money with it.

It covers one assembled airframe at a time, assembled by you or your people. It starts when you pay the invoice that names this licence, and it lasts for good.

Our Terms and Conditions cover the purchase and our Privacy Policy covers personal data. For the airframe it covers, this licence replaces the Personal-Use Licence. Where this licence and the terms disagree about what you may do with the files, this licence wins.


The short version

  • Print one airframe and earn money with it. Mapping, survey, inspection, filming, training, demonstration work. The job itself is your business.
  • Reprint any part, any time. Repairs and replacements are unlimited, and a complete rebuild after a crash is still the same airframe.
  • One assembled airframe at a time. A second assembled airframe needs a second licence, at half the price.
  • You get some fuselage parts as editable STEP files, so you can integrate your own sensors, antennas and payloads.
  • Your staff and contractors may build it, maintain it and fly it for you.
  • Hire it out if you like. Every assembled airframe carries its own licence, whoever is flying it.
  • Do not sell the files. Do not sell what you print. Do not print for other people.
  • No military, weapons or munitions work. Nothing unlawful.
  • Our mark and the serial stay on the airframe, and your copy of the files carries the serial too.
  • Whoever flies it answers for the flight. Permissions, competency, insurance and the flight itself belong to the person at the controls and the business they fly for, not to us.

The rest of this page is the same thing, said properly.

1. What the words mean

“The files” means everything in a kit: models, drawings, the manual, the parts list, print settings, configuration files, and every version we give you. It also means any copy, export, conversion, repair, rescale or edit of them. Changing the file format does not make it a different file.

“The STEP files” means the editable solid models we name as such in a kit. They are a part of the files and everything said about the files applies to them, except where this licence says otherwise.

“Commercial use” means using the airframe to earn money, to win work, or in the course of the work of a business, a school, a research institution or a public body, whoever is flying it.

“You” means the business named on the licence: the company, sole trader or organisation on the invoice. “Your people” means your employees and your contractors, working for you and under your control. “A hirer” means anyone you hire out, lease or lend the airframe to, and anyone who flies it for them.

“The airframe” means a printed, assembled airframe built from the files. It is a structure. It is not an aircraft until you add everything else.

“We” and “us” are Nomadium Robotics EDPK, UIC 208662142, VAT BG208662142, of 5 Hristo Belchev Street, 1000 Sofia, Bulgaria.

2. What you may do

You may:

  • download the files and keep them, permanently
  • back them up on your own devices and your own private storage
  • print and assemble one airframe for commercial use, and print every replacement part it ever needs
  • modify the STEP files to integrate your own sensors, antennas, mounts and payloads
  • fly the airframe for money, for clients or for your own business
  • let your people build it, maintain it, modify it and fly it for you
  • hire out, lease or lend the airframe, on the terms in section 4
  • use a printing service to make the parts, on the terms in section 4
  • keep everything you produce with it. Your imagery, your maps, your survey data and your inspection reports are yours, and we claim nothing in them
  • show it and market it. Exhibit it, demonstrate it, photograph it, film it, and say that you fly a TerraHawk FPV

Displaying the airframe is a permitted commercial use in its own right. If you run a printing or engineering business and you want the airframe on your stand as an example of your print quality, that is fine and we are glad to see it. You may not offer to print a TerraHawk for anybody, quote for one, or take an order for one. Showing it is not an offer to make it, and that line does not move because the airframe is a demonstration piece.

This licence is permanent and we cannot take it back on a whim. It is not a subscription and it does not expire. The only ways it ends are in section 14.

You are buying permission to use the design commercially, not the design itself. We keep every right we have not given you here.

3. One airframe, and what counts as one

The licence covers one assembled airframe at a time. That is the unit we sell and the unit we price, and “assembled” is the test rather than “flying”. An assembled airframe sitting in the hangar still counts.

Repairs and replacements are unlimited, and they never make a second airframe. Reprint a wing after a hard landing. Reprint the whole fuselage. Reprint every part on the airframe, one at a time or all at once, and it is still the airframe this licence covers. A complete rebuild after a write-off is a rebuild, not a new airframe. We are not going to count parts.

Spare parts on the shelf are fine, and so is a complete set of unassembled spares. Print a second set of wings and keep them in the van.

A second assembled airframe is a second licence, whether or not you fly both. Two assembled airframes means two licences, three means three.

Additional airframes are half price. Each one after the first costs half the licence fee in force when you buy it, and carries its own serial.

Each licensed airframe has a serial, and we may ask you which serials are in service. Tell us honestly and that is the end of it. We are not going to audit your hangar.

4. What you may not do

Do not share the files. Do not publish, upload, post, send, sell, lend, swap or give anyone access to them, whole or in part. That covers converted, repaired, rescaled, remeshed and lightly edited versions, it covers your modified STEP files, and it covers a link as much as a file. Sharing a design file is an infringement of our design rights on its own, whether or not anyone prints it. There are three exceptions. Your people, which the last paragraph of this section covers, your own add-ons, which section 5 covers, and a printing service, which the next paragraph covers.

You may send the files to a printing service to make your parts, under a written confidentiality agreement. That agreement must say three things: the files are licensed to you, they carry a serial tied to you, and the service may print for you and for nobody else. Have them sign it and keep a copy, because we may ask to see it. If that service leaks the files, keeps them after your job, or prints from them for anyone but you, you are liable to us for the damage, including what it costs us to trace and stop the copies, whether or not you knew. The serial points at you, and so does the responsibility.

Do not send the files to any other service. Not a scanning, conversion, repair or artificial-intelligence service, unless you ask us first.

Do not sell what you print. Not a finished airframe, not a part-built one, not a single printed part, not a spare, not at cost and not as a favour.

Do not print for other people. Not for a client, not for another operator, not for a friend, paid or free. Manufacturing TerraHawk airframes is a different agreement, and we sell one. If that is the business you want to be in, talk to us.

You may hire out, lease or lend the airframe. Some people will build a business on exactly that, and we are fine with it. The airframe stays yours, so printing an airframe you keep and hire out is printing for yourself. Every assembled airframe you hire out carries its own licence, the same as one you fly yourself. A hire ends and the airframe comes back to you. A hire that never ends, or one paid for in a lump sum with no return, is a sale, and section 15 says the only sale we permit. A hirer gets the airframe, not the files. They may fly it, paid or not. They may not print it, scan it, copy it, hold the files, or hand it on. If your hirer does any of that, it is your breach whether you knew or not, and section 14 applies to you. So choose who you hand it to, and put these rules in your hire agreement.

Whoever flies the airframe is responsible for flying it lawfully. Operator registration, permissions, pilot competency and insurance belong to the person at the controls, or to the business they fly for. If you hire the airframe out or lend it, settle that between you and them. We do not police it, and we do not stand in the middle of it.

No military, weapons or munitions. Do not use the airframe, the files or anything derived from them for military purposes, for weapons development, for carrying or aiming any weapon or munition, or to cause deliberate physical harm to a person. Civil work is fine, including for a public body whose service sits inside the armed forces in your country: policing, border and customs, search and rescue, firefighting, coastguard, disaster response and environmental enforcement are all permitted, and we would be glad to see the airframe doing any of them.

Nothing unlawful. Do not use it to break the law where you are, including aviation law, surveillance law, privacy law and export controls.

Leave the marks alone. Do not remove, hide, alter or obscure the Nomadium Robotics wordmark engraved into the printed parts, and do not defeat, alter or strip the serial in the files or on the airframe.

Do not reverse engineer. Do not scan, trace or reconstruct our design from the files or from a printed airframe, and do not use them, or anything learned from them, to produce a competing design. Measuring your own parts to check a print or to fit your own add-on is fine, and section 5 covers that.

Do not train on them. The files must not be used to train, tune or test any AI system, or for text and data mining, or for any dataset, benchmark or model of any kind.

Your people are your responsibility. Give them the files only for your own work, keep them under your control, and make sure they know these rules. What they do with the files, you answer for.

5. Your modifications, and the STEP files

The STEP files are in the kit so you can change them. That is the point of them. Cut a hatch, add a mount, reshape a bay to take your sensor, run your cabling where you need it.

Modify anything else you like too, for your own use.

What you add is yours. What it is built on stays ours. Your integration work, your brackets and your bay layout belong to you. The underlying design, the geometry and the aerodynamics do not.

Here is the test, and everything below turns on it. An edited copy of one of our files is still our file, and you may not share it. A separate part of your own design, that you made to fit ours, is yours and you may give it away.

So a modified file cannot be shared. Not with a client, not with a subcontractor outside your control, not published. The one exception is a printing service under section 4, which may hold it to print it and for nothing else. Renaming, converting, rescaling, remeshing or adding a hole does not change that. If you are not sure which side of the line your modification sits on, ask us. We would much rather answer that question than find out afterwards.

Keeping your integration work to yourself is fine. Most commercial operators will, because it is the part that makes their aircraft theirs, and nothing here obliges you to publish anything.

If you do want to publish your own genuine add-ons, you may, for free. Not for sale. You may not charge for an add-on, licence it, put it behind a paywall or a membership, or trade it. Give it away or keep it. If you want to sell an add-on, contact us, and we may sign a separate agreement for it.

Four things a shared add-on must do. It must contain a real contribution of your own, structural, functional or aerodynamic. It must not contain or reveal a substantial part of our design. It must not replace one of our files, or let our design be rebuilt from it. It must say clearly that it is an unofficial, builder-made part.

A modified airframe is outside what we designed. The consequences of your modification are yours. Tell us what you changed if you want our help with it, and we will help where we can.

6. Your copy is marked, and so is the airframe

Every copy of the files we issue carries a serial tied to the purchase it came from, inside the files themselves. The same serial is engraved into the airframe when it prints. We are telling you plainly, because a mark nobody knows about only catches the unlucky, and we would rather it put everybody off.

Every commercial airframe carries the Nomadium Robotics wordmark, engraved into the printed parts. It is engraved panel detail and it is part of the design, so it stays on the airframe. Custom engraving is available and we are happy to add your own name, serial or logo to a commercial airframe. Ask us. It is an addition to the wordmark, not a replacement for it.

We use the serial for one thing: finding the source of a copy that should not be out there.

7. Using our name

You may say what is true. That you fly a TerraHawk FPV, that you built it, and that it is a Nomadium Robotics design. Say it in your proposals, your tenders, your website and your marketing.

You may not say what is not. Do not suggest that we endorse, approve, supervise or supply your services. Do not present the aircraft as certified, type-approved, airworthiness-approved or manufactured by us, because it is none of those things. Do not use our name or logo as part of your own brand, product name or logo.

What you must not show is the files themselves, a download link, or technical detail complete enough to rebuild our design from. Photographs and video of printed parts and finished aircraft are exactly what we want to see.

We would like to name you as a commercial user, in a case study or on our site. We will ask first, every time, and no is a complete answer that costs you nothing.

8. Build it the way the manual says

Building to the specification is part of this licence. When you build an airframe from our files, you agree to:

  • use a filament and print settings we specify for that part, or accept that any change is your own engineering decision
  • follow the assembly, bonding and inspection steps in the manual, every spar, fastener and glued joint
  • respect the airframe’s design limits. The structure is sized for the all-up weight and airspeed published in the manual. Build it heavier, or set it up to fly faster, and it is outside what we designed and tested.

Commercial flying is harder on an airframe than weekend flying. More cycles, more hours, worse weather, less forgiving schedules. Inspect it accordingly, and keep a record if the work you do calls for one.

Stop if a part looks wrong. A crack, a delamination, a soft spar joint, an under-extruded layer: do not use it. Nothing here ever asks you to do something you think is unsafe.

Building outside this specification is your decision and your risk. An airframe built, modified or flown outside it is outside what we designed, and section 13 says what follows from that.

9. Where we stop, and you take over

We supply design files, a manual, print settings and a starter configuration file, plus the published design figures section 10 mentions, and that is the whole of what we supply. Our part ends with a printed, assembled airframe built to the specification above. We do not supply an aircraft.

We do not supply, choose, test or control your printer, your filament brand, your electronics, your batteries, your propellers, your motors, your radio link, your flight-controller tuning or your flying. Those are yours. They also decide most of whether the finished aircraft is safe, which is why we are being clear about the line rather than blurring it.

Whoever assembled the aircraft and fitted its components is its builder. Usually that is you. For registration and for operating it, the authority that asks who built the thing that is flying wants the builder’s name, not ours.

10. Flying commercially is your responsibility

Everything past the airframe is yours, and where a hirer flies it, theirs. Section 4 says which. It includes:

  • registering as a drone operator with your national aviation authority, and putting your operator number on the aircraft
  • holding the right permission for the work you are actually doing. This is the part that catches people out. An aircraft you build yourself carries no class label, so in the European Open category it is A3 only, which means well away from people and at least 150 metres from residential, commercial, industrial and recreational areas. A good deal of paid survey and inspection work cannot be done while staying inside those limits, and needs an operational authorisation in the Specific category instead. Getting that authorisation is your job. We may supply our published design figures and our manual to support your application, and you only have to ask.
  • your pilots’ competency and currency
  • insurance, which we recommend and do not require. We are not going to police it. Hold cover appropriate to the work and to the country, and remember that many countries require it of a commercial operator anyway.
  • permission from the people whose land, property and privacy your work affects
  • checking the rules where you actually are, per country and per site, because they vary and they change

Nothing we publish is permission to fly or an airworthiness approval. Nothing we sell is fit for carrying people, for flying over people, or for any job where a failure would hurt somebody.

11. Support

Commercial licences get priority support. By email at team@nomadiumrobotics.com, and in Discord where we have a channel for it. Priority means your question goes to the front of the queue, ahead of general support. It is not a guaranteed response time.

We help with our design, our files, our manual and our configuration, and with adapting the STEP parts to your payload.

We do not debug your printer, your electronics or your tune, we do not plan your missions, we do not file your regulatory paperwork and we do not come to your site. The Discord community is often very good at the printer, electronics and tuning questions.

12. Updates, and Early Access

Where a kit is sold with a period of free updates, that period is fixed against your purchase when you buy and does not move afterwards, whatever we offer new customers later. During it, any revision we publish of a kit you own is yours at no extra cost.

We do not promise there will be a revision, how many, when, or that a new version will fit parts you have already printed. When the period ends you keep everything you already have, permanently. You just stop getting new versions.

Early Access. Some kits are sold marked Early Access, which means what it says: the design is still under active development, it may be incomplete, and it has not been through the full testing a finished product gets.

This matters more to you than it does to a hobbyist. The figures we publish are a design specification, not flight-test results, and where a kit is in Early Access we have not finished proving them. Build to the specification, and do not promise a client performance we have not published. None of that changes what we owe you if what we sold you is faulty: the design has to be what we said it is, and section 13 says what follows if it is not.

13. Who carries what

You are buying for a business or an organisation, not as a consumer, and this section is written on that basis. The consumer protections that apply to a private buyer are not yours.

Where responsibility sits. We are responsible for the design being what we said it is. You are responsible for everything else: the finished aircraft, your components, your workmanship, your build quality, your modifications, your configuration, your pilots, your operation, and any hirer.

Section 8 is the basis on which we stand behind the design. An airframe that is not built, inspected and flown within the specification and the design limits is outside what we designed. What happens to it, and what it does to anyone else, is on you, and we owe nothing for it.

We do not promise the airframe suits any particular job of yours. Whether it can do the work you have in mind is your judgement, made before you buy.

Beyond that, and as far as the law allows, we are not liable for indirect or consequential loss. We are also not liable for any of the following, whether direct or not: lost profit, a lost contract, a lost tender, downtime, the cost of hiring a replacement aircraft, lost or corrupted survey data, and the cost of reflying a job. What we owe you for anything to do with a kit is capped at what you have paid us for that kit and its licence.

If a claim comes against us because you broke this licence, or because of how you, your people or a hirer built, modified or flew the aircraft, you cover what it costs us, including anything we pay out and our legal costs. That does not apply where the claim comes from a fault in what we supplied. We will tell you straight away, let you take part, and not settle it behind your back.

Nothing here limits any liability the law does not allow us to limit. That sentence is a seatbelt for the rest of this section. Some liability cannot be limited by contract, and a clause that tries to can be struck out whole. This sentence says we are not trying. The limits above reach as far as the law lets them and no further, so they stand.

14. If this licence is broken

We can end this licence if you seriously break it: sharing the files, selling airframes or parts, printing for other people, hiring out an airframe that has no licence of its own, reverse engineering, military or unlawful use, defeating the serial, or removing our mark.

We will tell you what the problem is, and where it can be fixed we will say what would fix it and give you a fair chance to do it. We are not looking for technicalities, and we know you may have work booked.

If it does end, stop using the airframe commercially and stop using the files for anything else. An aircraft you have already built is not confiscated. You may keep one copy of the files to repair that aircraft and fly it for no money, on the same terms a private buyer gets under our Personal-Use Licence, and you must delete every other copy. If it is out on hire when the licence ends, it comes back to you at the end of that hire and does not go out again. The commercial permission is gone. The licence also ends if your purchase is refunded or charged back, because payment is what it rests on.

Sharing our files causes damage that money repairs badly, so we may go to court for an order to stop it as well as for damages, and we may use the serial to show where a copy came from.

15. The rest

How you accept this licence. We issue a commercial licence against an invoice that names this document and its version. Paying that invoice accepts this licence for the airframe it covers.

The licence is yours and it does not transfer, with one exception. If your business is sold or merges, the licence and the airframe it covers move with the business, provided the new owner takes it on as it stands and you tell us within 30 days. That is the only permitted sale of an airframe. You cannot sell or sub-licence the licence on its own, separately from the business. Lending or hiring out the airframe under section 4 is not a transfer of the licence, which stays with you.

If you send us feedback or suggestions about a kit, we may act on them freely and we owe you nothing further for it.

This licence, the Terms and Conditions and the Privacy Policy are the whole agreement about the files. We may issue a new version for future purchases. The version you accepted governs what you already bought.

Notices to us go to team@nomadiumrobotics.com, and to you at the email on your account and on your invoice, so please keep them current.

This licence does not make us partners, employer and employee, or agents for one another. If one part of it cannot be enforced, the rest still stands, and a right we do not enforce straight away is not a right we have given up.

Bulgarian law governs this licence, and the courts of Sofia, Bulgaria have exclusive jurisdiction over any dispute.

Nomadium Robotics

Deploy TerraHawks on real missions

The commercial side builds and operates the certified airframes. Survey, inspection and monitoring work, flown by people, not printed at home.

Visit the commercial site