HELP - Frequently Asked Questions

Rebrickable will look at your LEGO Collection and calculate what other LEGO Sets or MOCs you can build with your existing parts. If you are interested in a particular Set/MOC it can show you which parts you are missing and help you buy them.

See the Building LEGO Sets/MOCs page.

MOC simply stands for "My Own Creation" and is a term used to cover all the fan-based LEGO creations other than the officially released sets. Rebrickable stores thousands of user-submitted MOCs all with building instructions.

The MOC-xxxxx number you see is a unique identifier for MOCs, created by Rebrickable.

Rebrickable does not sell physical LEGO sets/parts (only digital instructions). We do provide many features to make it easy for you to buy from other stores though. See Buying LEGO Parts for details.

Rebrickable does not sell physical LEGO sets/parts (only digital instructions). We do provide many features to make it easy for you to buy from other stores though. See Buying LEGO Parts for details.

If you find a store claiming to sell physical parts using the Rebrickable name, they are doing so illegally and are not to be trusted.

You can buy the digital building instructions for Premium MOCs via the MOC's page. 

If you need to buy extra parts, you can find stores that sell them from the Buy Parts tab on the MOC's page.

We do not sell instructions+parts as a kit. For more details see the Buying Premium MOCs page. 

You can sell your MOC, known as a Premium MOC, by selecting the appropriate option during the submission process. See Submitting MOCs for the rules and process.

You can re-download the MOC instructions you have bought at any time. Login and go to Account > MOC Purchases.

No, we do not sell complete kits. You can buy the instructions (if not free) and parts yourself separately via the links provided.

Please contact the MOC designer either via a Private Message, or a public comment on the MOC. If you feel there is a design or quality problem, providing feedback to the designer (good and bad) is essential for them to improve their designs in the future. Refunds are at the discretion of the designer, so be patient and polite in all communications.

Rebrickable only sells digital building instructions. After purchase, you will receive an email with all relevant details. You can also immediately download the file(s) from the MOC's page. If you bought while logged into your account, you can also download from your Account > MOC Purchases page. See Buying Premium MOCs for more details.

This is what Rebrickable was made for :)

1. Enter your LEGO Collection
2. Search for MOCs you can build via the Build menu, or on a specific MOC's page click the   Build this MOC button
3. You will be shown the LEGO Parts you are missing from your Collection that are needed to build the MOC. Click the Buy Parts tab.
4. Find a store you like and add the parts to it's shopping cart (note: this goes to an external site, Rebrickable does not directly sell parts or sets). Alternatively, click the Multi-Buy button to buy from multiple stores at once.
5. When your order has arrived, you can Import them into your Collection.

Use your Set Lists and/or Part Lists to record the LEGO you own. See the Manage LEGO Collection page for details.

Being an active and contributing member of Rebrickable will gain you Points which in turn determine your Level. See Help - Points/Levels/Badges for more details.

New sets are added as they become known to us, or users submit an inventory for a new set. Since it takes time for newly released sets to be fully cataloged, there is a delay before it is added to the Rebrickable database. Of course there are also times when a set has just been overlooked. If you think a set should be there but isn't please contact us or submit it yourself. See Submitting Sets for more details.

There are many ways you can help us out:

• If you see any mistakes, please use the Submit Change Request button on the Set Details or Part Details page.
• If you have designed a MOC you would like to see added, you can submit it yourself. See Submitting Mocs for more details.
• If you would like to add a set that has not been added, or add a parts inventory for a set without one, you can submit it yourself. See Submitting Sets for more details.
• If you are interested in taking on additional roles that can actively help us maintain the data, make yourself known and useful in the forums and we will probably contact you!

Rebrickable's parts are based (mostly) on the LDraw numbering scheme. For any features that rely on importing or exporting to external websites or applications, automatic part number conversions are done to prevent any problems.

We accept MOC submissions from anyone via the Submit a Moc page. To be approved, your MOC must meet some basic requirements:

• You must have building instructions that anyone can follow if they have the parts to build your MOC. These instructions can take any form such as photo sequences, digital Studio/LDD/MPD files, rendered PDF documents, or even Youtube videos. As long as they are clear enough. Note that if you wish to sell as a Premium MOC it must have high quality PDF instructions.
• You must add a full parts inventory required to build the MOC. If you have a 3D or other file these can be imported.
• You must be the designer of the MOC and it must be your own design, you cannot submit MOCs on behalf of someone else.

See Help - Submitting MOCs for more details.

Start by selecting Submit a Moc in the main menu and follow steps 1 to 6. After each step your work will be saved. See Submitting MOCs for more details.

Maybe! Let us know your suggestions and we will be happy to consider it. Also check out the forums for existing suggestions.

Please submit it in the forum with as much detail as you can provide.

We have a lot of help pages. Pick a topic from the navigation on the left. Alternatively, search for what you want in the Search box. Or check out the more detailed FAQ in the forum. If you still can't find your answer, post your questions in the Help Forum or submit a Support Request via the Contact page.