How to Draw MOC Blueprints in Studio: A Beginner's Walkthrough
Short answer first: you do not need professional design software to draw LEGO MOC instructions. Free BrickLink Studio handles the whole job. From first idea to exported PDF, a small 300-piece model takes roughly 20 hours, and about 80% of that time goes into repeatedly reworking the structure. Here is the full process in order.
Step 1: Choose a subject and set the size
Before you touch a single brick, decide what you are building: a building, a vehicle, or a minifigure scene? The subject dictates which brick types you need. Take a modular street shop as an example. Start with the baseplate size — 32x32 studs is the common choice, roughly 25 cm on each side — then set a height limit, say no more than 30 bricks tall, so the structure does not become unstable later.
Once the subject is settled, collect 5 to 10 reference images and break the building's visual features down into structures you can actually build. Windows might become 1x2 transparent bricks; a shop sign might become tiles plus stickers. Set your color scheme at the same time: no more than 3 main colors and 1 accent color. The more restrained the palette, the better the finished model reads. Finally, estimate the parts budget. For a 300-piece model at an average of about 0.5 yuan per individual part, the cost comes to around 150 yuan. Know that number before you start building.
Step 2: Build the model in Studio
Download the free BrickLink Studio software and drag bricks from the parts library. A good habit is to block out the overall silhouette with large pieces first, then swap in detailed parts gradually. Save constantly while you build, and get into the habit of checking connection strength every 50 parts — loose sections are very hard to fix later.
Save a separate version each time you finish a functional area: one save after the base, another after the walls. If a change goes wrong you can always roll back, and remember to turn on Studio's automatic backup. The software's collision check will flag illegal connections; when you see a warning, add a brick to reinforce it. That is far less work than tearing the model apart at the end. If you run short of a part, place a same-size substitute to keep the structure solid, then swap everything to the target color at the end.
Step 3: Generate the step-by-step instructions and parts list
When the model is finished, use Studio's Instruction Maker to split the build into steps automatically; the software orders them by part position. Keep each step to 3 to 5 parts — that is the most comfortable pace for a beginner following along. Export the parts list at the same time and check the brick count for every color so the list and the model match.
After the steps are generated, you must build through every single step virtually inside the software to confirm that each newly added part can be attached cleanly and that nothing is floating. Also check the parts list for hard-to-find elements such as unusual angle pieces and rare colors. If you spot any, swap them for common parts or note an alternative in the instructions — otherwise builders will give up when they cannot source the parts. Aim for 3 to 5 parts per step and 60 to 80 steps in total; that gives beginners the best experience.
Step 4: Export the PDF and publish to brickplan
Finally, export the PDF instructions and check that the step numbers run consecutively and the arrows point clearly, then upload it to brickplan and publish. Write a proper description and state the part count, for example "328 parts, about 2 hours to build." The more complete the information, the easier it is for other builders to find your work.
FAQ
Q: How do I draw LEGO MOC instructions, and what software do I need?
A: Free BrickLink Studio is the recommendation. It covers modeling, step generation, and parts list export in one pipeline, and it runs on both Windows and Mac. There are plenty of tutorials online.
Q: Can I draw MOC instructions on a phone?
A: None of the mainstream software has a mobile version yet. A phone is fine for viewing instructions, but drawing should be done on a computer. On a tight budget, a secondhand thin-and-light laptop will run small models of under 500 pieces smoothly.
Q: Is it worth drawing my own MOC instructions?
A: Yes. Drawing instructions trains your spatial thinking, and publishing your work brings recognition from fellow builders. brickplan lets authors sell original instructions at their own price, and most listings sit between 10 and 50 yuan.
Q: What is the difference between MOC instructions and official instructions?
A: Official instructions are produced by LEGO's professional team, with extremely detailed steps and standardized symbols. MOC instructions are made by hobbyists: the style is freer, but quality varies, so read the comments and preview images before you download.