Maker Marketplace · updated 2026-07-17 · v0.1.0

The part the manufacturer won't sell you, from the maker who will.

When a robot ages out of official support, its parts don't. Independent makers print, machine, and sell the mounts, covers, and replacements the OEM stopped stocking — or never stocked at all. This is a directory of the real ones: 25 parts across5 models, every listing linked to its source and dated.

Risk labelsLow riskFit with careHigh risk

BigBot does not make, sell, ship, or warranty any part listed here. Every listing links out to an independent maker or shop. Prices and stock move — the verified date is part of the data. Aftermarket and 3D-printed parts can void your warranty, and structural or load-bearing parts printed at home can fail. Fit and install at your own risk; check your warranty terms first.

Unitree Go2

All 9 parts →

The most active quadruped maker community in the catalogue — free mounting STLs, paid physical mounts, and full cosmetic costume shells. Most parts bolt to the payload deck, so the liability floor is low.

Buy it on BigBot Store ↗Fix guide: Unitree Go2 battery care and storage: the official rules that save the packFix guide: Who fixes a Unitree in 2026? US repair options, deposits, and warranty trapsFix guide: Unitree Go2 LiDAR stopped spinning after a bumpCults3D — go2 tag ↗
PartMakerTypePriceRisk
Modular Picatinny mounting kitMountBolt-on payload rail for sensors and accessories.Futurology TechProduct$99.99Fit with care
Base plate — T-Track 30 (no-drill, reversible)MountReversible mounting base; no drilling into the shell.joao_zeSTLFreeLow risk
Base plate — T-Track 19Mountjoao_zeSTLFreeLow risk
Intel RealsSense D435i depth-camera mountMountSensor bracket for the front deck.peterfnauSTLFreeLow risk
Insta360 X3 camera mountAccessoryMostGearZerOIdeaSTLFreeLow risk
Smartphone holder for the remote controllerAccessoryKeksusSTLFreeLow risk
Front fascia (decorative panel)CosmeticErwinSTLFreeLow risk
"AlmostDynoMutt" head coverCosmeticfastblinkerSTLFreeLow risk
Animal costume shells (Dragon, Reindeer, Ankylosaurus, and more)CosmeticFull finished costume shells; cosmetic only.MCSDINOProduct$1,500–$1,900Low risk

Loona Petbot

All 4 parts →

The most active companion-robot maker scene — free face-bumper and accessory STLs plus official costumes. Almost entirely cosmetic, so low liability, with one structural exception (the drive wheel).

Buy it on BigBot Store ↗
PartMakerTypePriceRisk
Face bumperCosmeticAnimsSTLFreeLow risk
"Knight's Mask" face bumperCosmeticcrankshaftSTLFreeLow risk
Petbot play ballAccessoryHobby KonstrukteurinSTLFreeLow risk
Replacement drive wheelStructuralLoad-bearing drive component. A print failure affects movement — verify material and fit before relying on it.Joao_zeSTLFreeHigh risk

Husqvarna Automower 435 iQ AWD

All 4 parts →

The most mature mower aftermarket: OEM and third-party blades, traction hardware, printed garages, and a deep STL library. Most functional parts here are high-liability by nature (blades, batteries, traction).

Buy it on BigBot Store ↗Printables — automower tag ↗
PartMakerTypePriceRisk
OEM replacement blades #595084411 (6-pack)ConsumableCutting blades — genuine OEM part, listed here for completeness alongside maker options.Husqvarna (via Lowe's)ProductCheck price at sourceHigh risk
Replacement blades, 18-pack (lists 435 fitment)ConsumableThird-party blades; verify fitment and torque spec before use.EMBergProductCheck price at sourceHigh risk
VarioSpike traction wheel spikesUpgradeImproves grip on slopes; confirm 435 AWD compatibility.ideamowerProductCheck price at sourceFit with care
DIY replacement battery packStructuralDIY lithium pack. High risk: improper cells/wiring are a fire hazard. For experienced makers only.RenbaSTLFreeHigh risk

Mammotion Luba (1 / 2 / 2X / 3)

All 3 parts →

An active mower community, but nearly all listings target the Luba 1/2/2X. Sellers claim cross-compatibility; Luba-3 fitment is not independently verified — confirm before you buy or print.

Buy it on BigBot Store ↗
PartMakerTypePriceRisk
Printed garage / dock shelterAccessoryA maker monetizing a free community STL into a finished product.Zephyr's MarketProduct$129.99Low risk
Printed garage (STL)AccessorylutormSTLFreeLow risk
Endurance replacement bladesConsumableCutting blades; genuine OEM consumable.MammotionProductCheck price at sourceHigh risk

iRobot Roomba (all series)

All 5 parts →

The benchmark consumer-robot aftermarket — the deepest supply anywhere, with a clean split between low-liability accessories (mounts, covers, bumpers) and high-liability functional parts (batteries, motors, wheels). Roomba isn't in the BigBot Store catalogue yet; it's here as the anchor expansion category.

Fix guide: Who fixes a Roomba in 2026? Every real option, pricedFix guide: Roomba charging errors 1, 3, 5, 6, 7, 8: what each one meansCults3D — roomba tag (125 models) ↗iFixit — Roomba parts ↗
PartMakerTypePriceRisk
3D-printed traction tiresUpgradeEtsy makerProductCheck price at sourceLow risk
Dock wall mountAccessoryEtsy makerProductCheck price at sourceLow risk
Bumper extensionAccessoryEtsy makerProductCheck price at sourceLow risk
Brush & filter replacement kitConsumableWear consumables; widely available third-party.SENNIIProductCheck price at sourceFit with care
Replacement battery (third-party)StructuralThird-party lithium/NiMH packs. Match chemistry and capacity to your model.Tenergy / PowerextraProductCheck price at sourceHigh risk

How this directory works

Every row links out to the maker or shop that actually makes the part — we don't sell, ship, or warranty anything here. Prices and stock move, so the verifieddate on each part's page is part of the data. A part marked Free is a downloadable STL you print yourself; Product means a finished item you buy.

The risk label is about what the part does, not who made it. A costume shell or a camera mount is low risk. A drive wheel, a cutting blade, or a DIY battery is structural — a home-printed version can fail, and aftermarket parts can void your warranty. Read the note on every high-risk part before you commit.

Make parts for a robot we cover — or one we don't yet? List your part — the directory grows by verified submission, not by scraping.