How to Store and Organize Your CrunchLabs Build Box Parts
By CrunchLabs: Where kids & adults learn to Think like Engineers | Published: 2026-09-12
Category: Tips & Care
A practical, step-by-step system for storing CrunchLabs Build Box and Hack Pack parts so small pieces stay findable, refills last longer, and rebuilds stay fun instead of frustrating.
Quick answer
Sort every CrunchLabs Build Box and Hack Pack build into its own labeled container, then keep a small shared bin for fast-moving refill parts like balls, discs, and rockets. Store the current build assembled on a shelf and everything else broken down. This one habit prevents the two most common losses: tiny parts that vanish between builds and refill pieces that get mixed into the wrong kit.
A Build Box is only fun until the third time you crawl under the couch hunting for a missing ball. The builds themselves are designed to be taken apart and rebuilt, which means parts move constantly between the box, the floor, and whatever drawer they get swept into at cleanup time.
The fix is not more discipline. It is a storage system that matches how the builds actually work: one home per build, one home for refills, and one clearly marked place for the pieces you are actively using. Set it up once and cleanup stops being a negotiation.
Start by sorting parts into three groups
Before you buy a single bin, empty everything onto a table and sort into three piles: parts for a build you are currently working on, parts for builds you have finished and want to keep, and loose consumables like balls, discs, and rockets. Most households skip this step and end up with one giant mixed box, which is exactly the situation that makes a missing piece feel like a crisis.
The third pile matters more than people expect. Refill items are the parts that disappear fastest, and they are also the cheapest to replace, so they should never be stored inside a build container where they can quietly run out.
- Keep the current build's parts separate from stored builds so you are never digging through a finished kit for one screw.
- Do not toss instruction manuals into the mixed box; they belong with their build.
Choose containers by part size, not by box size
Small parts need shallow containers and larger parts need depth. A deep bin full of tiny pieces turns into a lucky dip every time someone reaches in, while a shallow tray of long rails overflows the moment it is picked up. Match the container to the part, then label the outside with the build name, not a number you will forget.
Clear containers beat opaque ones for one practical reason: you can confirm a part is present without opening anything. If you already own a drawer unit, use it, but keep one shallow tray per build rather than one drawer for everything.
- Write the build name on tape, not directly on the plastic, so you can relabel when a kit is retired.
- Keep a small lidded cup inside each bin for screws and pins so they do not migrate.
Give refill parts their own labeled station
Refills are the parts you restock, so they deserve a dedicated spot that is easy to reach and easy to check. A single labeled bin for foam balls, a second for discs, and a third for rockets means you can see at a glance when something is running low instead of discovering it mid-build.
This is also where a small purchase pays off. The Foam Balls Refill Pack (Build Box) comes as a pack of 12 and the same ball works across the Trip Wire, Domino Catapult, and Ball Launcher builds, so one bin genuinely covers three projects. The Disc Launcher Discs Refill Pack (Build Box) and Rocket Revolver Refill Pack (Build Box) each come as a pack of 12 as well, which makes them easy to store as a single spare layer rather than scattered loose.
- Label refill bins by part type, not by build name, since the same part often serves several builds.
- Keep one unopened refill pack in reserve so a lost piece never ends a play session.
Set a rebuild rule so builds do not pile up
The clutter problem is rarely storage space. It is unfinished builds. Decide in advance how many builds can stay assembled at once, and break the rest down into their labeled bins the same day. Two or three assembled builds on a shelf is a display; ten is a pile that nobody wants to touch.
If a build is a favorite, keep it assembled and store its leftover parts and manual together in its bin so a future rebuild is still possible. That single decision keeps the shelf useful instead of decorative.
- Photograph a finished build before breaking it down if you want a reference for rebuilding later.
- Return loose pieces to their bin during cleanup, not the next morning.
Handle stand-alone robots and electronics with a little more care
Stand-alone robots and electronic builds deserve their own shelf space rather than a shared bin, because cables and connectors are the parts most likely to be damaged by casual storage. Keep them assembled where possible, and if you do store them, coil cables loosely instead of folding them tightly.
The Laser Synthesizer - Speaker is a good example of why this matters. It is a two-in-one build that connects a touchpad synthesizer to a Bluetooth enabled speaker with a laser visualizer, so it has more connection points than a purely mechanical build. Storing it assembled on a shelf avoids repeatedly reseating those connections.
- Keep electronics out of bins that also hold loose metal hardware.
- Store the Coding Console and cables together so a rebuild does not stall on a missing cable.
Your seven-step storage setup
- Step 1: Empty and sort everything: Tip every Build Box and Hack Pack part onto a table and sort into current build, stored builds, and loose consumables. Common mistake: sorting while parts are still in their original packaging, which hides what you actually own. Checkpoint: you should have three clearly separate piles before buying anything.
- Step 2: Match containers to part size: Use shallow trays for small hardware and deeper bins for long rails and larger pieces. Common mistake: buying one large tub for everything, which turns every search into a dig. Checkpoint: you can see the bottom of every small-parts tray without emptying it.
- Step 3: Label by build name: Write the build name on removable tape on each bin and add a small lidded cup inside for screws and pins. Common mistake: labeling with numbers or abbreviations nobody else in the house remembers. Checkpoint: a family member who did not set up the system can find a build without asking.
- Step 4: Create a refill station: Give foam balls, discs, and rockets their own labeled bins in one easy-to-reach spot, and keep one unopened refill pack in reserve. Common mistake: storing refills inside a build bin, where they quietly run out. Checkpoint: you can see at a glance which refill type is running low.
- Step 5: Set an assembled-build limit: Decide how many builds can stay assembled at once, then break the rest down into their bins the same day. Common mistake: letting builds accumulate until the shelf becomes unusable. Checkpoint: every stored build has its parts and manual together in one bin.
- Step 6: Store electronics assembled: Keep stand-alone robots and electronic builds on a shelf rather than in a shared bin, and coil cables loosely. Common mistake: folding cables tightly or storing them with loose metal hardware. Checkpoint: no cable is pinched, and connectors are not being reseated every session.
- Step 7: Do a two-minute reset after each session: Return loose pieces to their bins and put the current build back on its shelf before moving on to something else. Common mistake: leaving cleanup for later, which is how parts end up in the wrong bin. Checkpoint: the table is clear and every bin is closed.
Parts worth keeping stocked
- Foam Balls Refill Pack (Build Box): Comes as a pack of 12, and the same ball works for all three builds: Trip Wire, Domino Catapult, and Ball Launcher. One labeled ball bin covers three separate builds, so you only need to track a single refill type instead of three.
- Disc Launcher Discs Refill Pack (Build Box): Comes as a pack of 12, and a free STL design file is available if you prefer to 3D-print your own discs at home. If you print your own discs, store them in the same labeled bin so printed and purchased discs do not get separated.
- Rocket Revolver Refill Pack (Build Box): Comes as a pack of 12 foam rockets. Foam rockets are light and roll easily, so a lidded bin keeps them from scattering across the room between sessions.
- Laser Synthesizer - Speaker: A two-in-one build that connects a touchpad synthesizer to a Bluetooth enabled speaker complete with a laser visualizer. More connection points means more chances for a loose cable, so this build is better stored assembled on a shelf than broken down into a shared bin.
A storage system only has to survive one thing: the next cleanup. Sort by build, label by name, give refills their own station, and store electronics assembled. Do that, and the parts you already own stay usable instead of turning into a pile you have to replace.



