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Designing MOCs

FAQs

What do I need to upload a design?

Each model must include the following components in order to be published on MOC Shop: One main photo (PNG or JPG) - required...

Who owns the design I upload?

The designer has the Intellectual Property Rights of the uploaded item(s). The designer to the MOC and the BrickLink account...

Are there any parts that are not allowed?

All genuine and existing LEGO parts (including minifigs) are allowed.  Other brand products such as Mega Bloks, custom parts such...

Why was material removed due to a Copyright or Intellectual Property Policy issue?

Your material was removed because BrickLink received a Notice of IP Infringement from the IP owner. BrickLink does not permit...

What are your photo requirements?

PNG or JPG with recommended pixel dimension of 600x400 (3:2), 640x480 (4:3), 640x360 (16:9), 400x600 (2:3), 480x640 (3:4) or 360x640 (9:16)

Can I submit LDD extracted photos?

Yes, for display-only. However, you may NOT use LDD or LDraw screenshots as the main photo for commercial designs. For full...

How do I make instructions?

We do not require a particular format of instructions if you choose to create your own. By default, the BrickLink team will...

Can a Seller substitute parts from my MOC?

Yes, only if the replaced part does not change the images and instructions provided with the MOC. The seller(s) of your MOC is...

How will buyers view my instructions?

Before checkout: All members will be able to preview the instruction manual for each sale item. At checkout: Buyer may opt-in or...

Can I request sellers to stock up on my MOC?

Yes, you may contact a seller to stock up the parts for your MOC but keep in mind sellers are not obligated to do so. So, try...

Where can I upload my design?

On the top righthand menu, go to MOCS > My Baseplate and click on 'Upload My MOC.'  Follow the remaining steps as directed on the page.

How big or small does my design need to be?

There is no size restriction for your MOC. However by default, we make instruction manuals for models that are approved for sale...

What format does the parts list have to be?

We accept both the LEGO Digital Designer (.lxf) and LDraw (.ldr) formats.

Can I digitally render my photos?

Yes, but we prefer photographs of physical builds. To be approved for sale, MOCs must have a main photo that is a real photograph...

Are instructions required?

Depends. If you want to publish your MOC for sales, instructions are required. If you choose to publish your MOC for display-only...

Where can I find help with instructions?

You can get free instruction making services for a limited time by reaching final approval status of your MOC. See what you need...

How much of my work do I have to change if similar to someone else's work?

There's a myth that US law states if you change a certain percentage of someone else's work, you will be able to claim a...

Who owns the instruction manual?

You retain all of your ownership rights in your content.  However, by submitting content to BrickLink, you are granting BrickLink...