MOC Building FAQ: 10 Common Problems Solved
Building a MOC (My Own Creation) rarely goes smoothly. The instructions blur together, a key part is missing, the model collapses halfway through, and the color scheme looks worse every time you walk past it. Almost every builder has hit these walls. This FAQ collects the questions that come up most often, with a practical fix for each one.
Parts
Q1: What do I do when I never have enough parts?
Running short is the first hurdle every MOC builder faces. There are three ways around it. First, break down old sets and fold their parts into your stock. Second, order from a parts list — check the bill of materials before you start and buy in one go. Third, use substitutes: a different color rarely matters, and if a piece is slightly too large you can hide it with technique. Don't trap yourself in the idea that every part must match the original exactly.
Q2: How do I stop buying the same parts over and over?
Duplicate purchases usually happen because your stock is a mystery, even to you. Keep a parts inventory sheet and update it whenever you buy, sort or disassemble something. Store parts by category — bricks, plates, slopes, specialty pieces — and label the drawers. Check the sheet before you stock up, and the duplicates stop.
Instructions
Q3: The instructions make no sense and skip whole steps. What now?
Many MOC instructions leave out the in-between steps, so confusion is normal. Here's the technique: read the whole thing once before you touch a brick, so you have the overall shape in your head. When a step jumps, reason it out — look at where the new parts interlock with the steps on either side. If that fails, compare the render from a different angle. Most cases of "I can't read this" are really just a shortage of patience.
Q4: Are digital or printed instructions better for beginners?
Digital instructions win for newcomers: you can zoom in on a section and rotate the view, which makes connections far clearer, and you can check parts against the list step by step. Printed instructions are better for casual flipping. Start with digital. Every plan on BrickPlans (brickplan.cn) is digital, with clear steps and a parts list included — a good place to begin.
Structure and Color
Q5: My build is unstable and falls apart at a touch. How do I fix it?
Loose structures almost always mean no interlocking. The seams between the brick layer below and the one above must be offset so they bite into each other, exactly like a real brick wall. Two more fixes: add an inner plate layer inside thin walls, and reinforce the corners with longer bricks or corner pieces. Stability is the backbone of any structure.
Q6: The colors look ugly and get worse the longer I stare. Help?
Bad color schemes usually come from using too many colors. Start with the three-color rule: one main color, one secondary color, one accent. Holding back on quantity is what makes a model look refined. If you're stuck, copy reality — architecture and nature are ready-made palettes. Lean on neutral colors (gray, white, black, brown) for the base and use bright colors only as highlights. Test colors before you build; it saves far more time than rebuilding afterward.
Time and Persistence
Q7: Big builds take forever and I always quit halfway. What can I do?
A large model can run to dozens of hours, so giving up is understandable. The fix is to break the goal down: split one MOC into stages such as base, main body and details, and photograph each stage as you finish it. Building is a craft you're supposed to enjoy. Don't force yourself to finish in one sitting — slow the pace down and it becomes stress relief instead of a burden.
Q8: How do I actually stick with a MOC until it's done?
Swap the big goal for small steps. Ask yourself for just one section a day — a wall, a row of windows, a stretch of sloped roof — then stop when it's done. Also put the work where you can see it, so it reminds you of your progress, or team up with a friend for mutual accountability. When the pile of parts turns into a finished shape, that sense of achievement carries you into the next build.
Advanced Notes
Q9: I always want to tear my finished model apart and start over. Is that normal?
Completely normal. The heart of MOC is iteration — finish first, refine second, tear down and rebuild third. Even experienced builders regularly strip a model back to parts. Photograph every finished version before you decide whether to rebuild; the photos double as a portfolio and as a reference for next time. Don't fear the teardown. What you take apart is parts; what you keep is experience.
Q10: What MOC habit do beginners overlook most?
Three small things get ignored constantly. First, sort your parts as you go — the messier the desk, the harder it is to keep going. Second, document the process, photographing structure and details so you have a record after a teardown. Third, ask other builders: post your work in the community, and one suggestion from someone else can save you an entire afternoon.
Final Thoughts
This FAQ has walked through ten of the most common traps in MOC building, from parts and instructions to structure, color and time management, with a fix for each. There's no single right answer in MOC — there's only the pleasure of trial, error and iteration. If you want a plan with a parts list and clear steps to practice on, visit BrickPlans (brickplan.cn) and start from the first brick: turn your frustrations into finished models.
Written by the BrickPlans team. Please credit the source when republishing.