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Robot Inventor

Robot Inventor

51515-1·LEGO·2020·145 parts

Used Avg
$453.80
New Avg
$594.03
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About Robot Inventor

Robot Inventor (51515-1) is a LEGO LEGO set from 2020 valued at $453.80 on BrickLink. It contains 145 cataloged parts. This set has been retired and is only available on the secondary market.

Parts (145)

Technic, Axle and Pin Connector Hub with 2 Perpendicular Axles
Technic, Axle and Pin Connector Hub with 2 Perpendicular Axles
×2
Technic, Gear 8 Tooth with Dual Face
Technic, Gear 8 Tooth with Dual Face
×2
Technic, Axle  1L with Pin 2L with Friction Ridges
Technic, Axle 1L with Pin 2L with Friction Ridges
×14
Technic, Liftarm Thin 1 x 5 - Axle Holes
Technic, Liftarm Thin 1 x 5 - Axle Holes
×4
Technic, Panel Fairing #21 Very Small Smooth, Side B
Technic, Panel Fairing #21 Very Small Smooth, Side B
×2
Technic, Panel Fairing #22 Very Small Smooth, Side A
Technic, Panel Fairing #22 Very Small Smooth, Side A
×2
Technic, Liftarm, Modified H-Shape Thick 3 x 5 Perpendicular
Technic, Liftarm, Modified H-Shape Thick 3 x 5 Perpendicular
×2
Technic, Pin with Friction Ridges and Pin Hole
Technic, Pin with Friction Ridges and Pin Hole
×18
Technic, Panel Plate 3 x 11 x 1
Technic, Panel Plate 3 x 11 x 1
×2
Technic, Axle  5L with Stop
Technic, Axle 5L with Stop
×2
Technic, Liftarm Thick 1 x 1 (Spacer)
Technic, Liftarm Thick 1 x 1 (Spacer)
×11
Technic, Liftarm Thick 1 x 1 (Spacer)
Technic, Liftarm Thick 1 x 1 (Spacer)
×7
Technic, Liftarm Thick 1 x 1 (Spacer)
Technic, Liftarm Thick 1 x 1 (Spacer)
×11
Technic Turntable 60 Tooth Bevel, Top
Technic Turntable 60 Tooth Bevel, Top
Technic Turntable 60 Tooth, Base
Technic Turntable 60 Tooth, Base
Technic, Driving Ring Connector 3L
Technic, Driving Ring Connector 3L
Technic, Axle and Pin Connector Hub with 1L Axle
Technic, Axle and Pin Connector Hub with 1L Axle
×4
Technic, Panel Curved 3 x 5 x 3
Technic, Panel Curved 3 x 5 x 3
×2
Technic, Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface
Technic, Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface
×2
Technic, Axle  3L with Stop
Technic, Axle 3L with Stop
×12
Plate, Modified 2 x 2 with Pin on Bottom
Plate, Modified 2 x 2 with Pin on Bottom
×2
Brick, Round Tube 1 x 1 d. 90 degrees Elbow Macaroni - No Stud - Type 2 - Axle Hole
Brick, Round Tube 1 x 1 d. 90 degrees Elbow Macaroni - No Stud - Type 2 - Axle Hole
×8
Antenna Whip 8H
Antenna Whip 8H
×2
Technic, Pin with Short Friction Ridges
Technic, Pin with Short Friction Ridges
×180
Tile 1 x 2
Tile 1 x 2
×2
Tile 1 x 2
Tile 1 x 2
×2
Technic, Liftarm, Modified Bent Thick 1 x 11.5 Double
Technic, Liftarm, Modified Bent Thick 1 x 11.5 Double
×8
Technic, Axle and Pin Connector Angled #1
Technic, Axle and Pin Connector Angled #1
×5
Technic, Axle and Pin Connector Angled #6 - 90 degrees
Technic, Axle and Pin Connector Angled #6 - 90 degrees
Technic, Axle and Pin Connector Angled #5 - 112.5 degrees
Technic, Axle and Pin Connector Angled #5 - 112.5 degrees
×2
Technic, Axle and Pin Connector Angled #2 - 180 degrees
Technic, Axle and Pin Connector Angled #2 - 180 degrees
Technic, Axle Connector with Axle Hole
Technic, Axle Connector with Axle Hole
×3
Technic, Pin 3L with Friction Ridges and Stop Bush
Technic, Pin 3L with Friction Ridges and Stop Bush
×6
Technic, Pin 3L with Friction Ridges and Stop Bush
Technic, Pin 3L with Friction Ridges and Stop Bush
×12
Technic, Axle  2L Notched
Technic, Axle 2L Notched
×10
Technic, Axle  5L
Technic, Axle 5L
×4
Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4
Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4
×6
Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4
Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4
×6
Technic, Axle and Pin Connector Perpendicular 3L with Center Pin Hole
Technic, Axle and Pin Connector Perpendicular 3L with Center Pin Hole
×2
Technic, Axle and Pin Connector Perpendicular 3L with Center Pin Hole
Technic, Axle and Pin Connector Perpendicular 3L with Center Pin Hole
×6
Technic, Axle and Pin Connector Angled #4 - 135 degrees
Technic, Axle and Pin Connector Angled #4 - 135 degrees
×6
Technic, Axle  5.5L with Stop
Technic, Axle 5.5L with Stop
×2
Technic, Gear 20 Tooth Double Bevel
Technic, Gear 20 Tooth Double Bevel
×4
Technic, Gear 12 Tooth Double Bevel
Technic, Gear 12 Tooth Double Bevel
×4
Technic, Liftarm, Modified Bent Thick 1 x 9 (7 - 3)
Technic, Liftarm, Modified Bent Thick 1 x 9 (7 - 3)
×4
Technic, Liftarm Thick 1 x 15
Technic, Liftarm Thick 1 x 15
×5
Technic, Axle and Pin Connector Perpendicular Double
Technic, Axle and Pin Connector Perpendicular Double
×8
Technic, Liftarm Thick 1 x 5
Technic, Liftarm Thick 1 x 5
×7
Technic, Liftarm Thick 1 x 5
Technic, Liftarm Thick 1 x 5
×9
Technic, Liftarm, Modified Bent Thick 1 x 7 (4 - 4)
Technic, Liftarm, Modified Bent Thick 1 x 7 (4 - 4)
×9
Technic Ball Joint
Technic Ball Joint
×2
Technic, Gear 36 Tooth Double Bevel
Technic, Gear 36 Tooth Double Bevel
Technic, Liftarm Thick 1 x 3
Technic, Liftarm Thick 1 x 3
×2
Technic, Liftarm Thick 1 x 3
Technic, Liftarm Thick 1 x 3
×2
Technic, Liftarm Thick 1 x 3
Technic, Liftarm Thick 1 x 3
×2
Technic, Liftarm Thick 1 x 3
Technic, Liftarm Thick 1 x 3
×2
Technic, Liftarm Thick 1 x 3
Technic, Liftarm Thick 1 x 3
×2
Technic, Liftarm Thick 1 x 3
Technic, Liftarm Thick 1 x 3
×10
Technic, Liftarm Thick 1 x 3
Technic, Liftarm Thick 1 x 3
×8
Technic, Liftarm Thick 1 x 7
Technic, Liftarm Thick 1 x 7
Technic, Liftarm Thick 1 x 7
Technic, Liftarm Thick 1 x 7
×11
Technic, Liftarm Thick 1 x 11
Technic, Liftarm Thick 1 x 11
×7
Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5
Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5
×12
Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5
Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5
×6
Technic, Pin 3L without Friction Ridges
Technic, Pin 3L without Friction Ridges
×6
Technic, Pin Connector Perpendicular Double 3L
Technic, Pin Connector Perpendicular Double 3L
×4
Technic, Gear 24 Tooth with 1 Axle Hole
Technic, Gear 24 Tooth with 1 Axle Hole
×2
Technic, Pin without Friction Ridges
Technic, Pin without Friction Ridges
×19
Technic, Axle  4L
Technic, Axle 4L
×4
Technic, Axle  6L
Technic, Axle 6L
×2
Technic, Axle  8L
Technic, Axle 8L
×2
Technic, Axle 12L
Technic, Axle 12L
×2
Technic Bush
Technic Bush
×11
Electric Sensor, Color - SPIKE Prime
Electric Sensor, Color - SPIKE Prime
Electric Sensor, Distance - SPIKE Prime
Electric Sensor, Distance - SPIKE Prime
Technic, Axle  1L with Pin without Friction Ridges with Round Hole
Technic, Axle 1L with Pin without Friction Ridges with Round Hole
×6
Wheel 56 x 14 Technic with Axle Hole and 8 Pin Holes with Molded Black Hard Rubber Tire Pattern
Wheel 56 x 14 Technic with Axle Hole and 8 Pin Holes with Molded Black Hard Rubber Tire Pattern
×6
Technic, Panel Plate 11 x 19 x 1
Technic, Panel Plate 11 x 19 x 1
Dish 8 x 8 Inverted (Radar) - Solid Studs
Dish 8 x 8 Inverted (Radar) - Solid Studs
Technic, Liftarm, Modified Frame Thick 11 x 15 Open Center
Technic, Liftarm, Modified Frame Thick 11 x 15 Open Center
×2
Technic, Pin Connector Block, Liftarm 1 x 3 x 3
Technic, Pin Connector Block, Liftarm 1 x 3 x 3
×9
Technic, Liftarm, Modified Frame Thick 7 x 11 Open Center
Technic, Liftarm, Modified Frame Thick 7 x 11 Open Center
×2
Electric, Cable USB for SPIKE Prime / Robot Inventor, Male USB-A to Male USB Micro-B (Length 1m)
Electric, Cable USB for SPIKE Prime / Robot Inventor, Male USB-A to Male USB Micro-B (Length 1m)
Technic, Liftarm Thick 1 x 9
Technic, Liftarm Thick 1 x 9
×14
Technic, Liftarm Thick 1 x 13
Technic, Liftarm Thick 1 x 13
×5
Ball, Hard Plastic 52mm D. (Duplo Ball for Ball Tube)
Ball, Hard Plastic 52mm D. (Duplo Ball for Ball Tube)
Tile 1 x 8
Tile 1 x 8
×2
Technic, Axle and Pin Connector Perpendicular Double Split
Technic, Axle and Pin Connector Perpendicular Double Split
×4
Technic, Axle and Pin Connector Perpendicular 3L with 2 Pin Holes
Technic, Axle and Pin Connector Perpendicular 3L with 2 Pin Holes
×4
Technic Bush 1/2 Smooth
Technic Bush 1/2 Smooth
×11
Technic, Pin 1/2 without Friction Ridges
Technic, Pin 1/2 without Friction Ridges
×11
Technic, Axle  1L with Pin with Friction Ridges
Technic, Axle 1L with Pin with Friction Ridges
×60
Technic, Axle  7L
Technic, Axle 7L
×4
Dish 6 x 6 Inverted (Radar) - Solid Studs
Dish 6 x 6 Inverted (Radar) - Solid Studs
Technic, Axle  3L
Technic, Axle 3L
×9
Technic, Axle Connector Double - Flexible Rubber
Technic, Axle Connector Double - Flexible Rubber
×4
Projectile Arrow, Solid Shaft with Molded Flexible Rubber Black Cross Shaped End Pattern
Projectile Arrow, Solid Shaft with Molded Flexible Rubber Black Cross Shaped End Pattern
×2
Technic, Panel Car Mudguard 15 x 2 x 7
Technic, Panel Car Mudguard 15 x 2 x 7
×2
Technic, Pin Connector Perpendicular 3L with 4 Pins
Technic, Pin Connector Perpendicular 3L with 4 Pins
×12
Technic, Axle and Wire Connector
Technic, Axle and Wire Connector
×8
Projectile Launcher, 2 x 6 x 1 1/3 Spring Shooter with Light Bluish Gray Top
Projectile Launcher, 2 x 6 x 1 1/3 Spring Shooter with Light Bluish Gray Top
×2
Sticker Sheet for Set 51515 - (73229/6327015)
Sticker Sheet for Set 51515 - (73229/6327015)
Electric, Motor SPIKE Prime / Powered Up, Medium Angular with White Top Housing and Cable
Electric, Motor SPIKE Prime / Powered Up, Medium Angular with White Top Housing and Cable
×4
Ball, Bionicle Zamor Sphere
Ball, Bionicle Zamor Sphere
Technic, Axle  8L with Stop
Technic, Axle 8L with Stop
×4
Technic, Pin Connector Perpendicular 3 x 3 Bent with 4 Pins
Technic, Pin Connector Perpendicular 3 x 3 Bent with 4 Pins
×4
Wheel 18 x 14 Smooth
Wheel 18 x 14 Smooth
×4
Wheel 18mm D. x  8mm with Fake Bolts and Shallow Spokes and Axle Hole
Wheel 18mm D. x 8mm with Fake Bolts and Shallow Spokes and Axle Hole
×4
Technic, Liftarm Thick 1 x 2 - Axle Hole
Technic, Liftarm Thick 1 x 2 - Axle Hole
×3
Technic, Liftarm Thick 1 x 2 - Axle Hole
Technic, Liftarm Thick 1 x 2 - Axle Hole
×2
Technic, Liftarm, Modified T-Shape Thick 3 x 3
Technic, Liftarm, Modified T-Shape Thick 3 x 3
×6
Technic, Axle  9L
Technic, Axle 9L
×2
Tire 24mm D. x 7mm Offset Tread - Band Around Center of Tread
Tire 24mm D. x 7mm Offset Tread - Band Around Center of Tread
×4
Technic, Pin Connector Round 2L with Slot (Pin Joiner Round)
Technic, Pin Connector Round 2L with Slot (Pin Joiner Round)
×8
Technic, Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface
Technic, Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface
×3
Technic, Axle and Pin Connector Perpendicular Triple
Technic, Axle and Pin Connector Perpendicular Triple
×7
Technic, Liftarm, Modified Frame Thick 5 x 7 Open Center
Technic, Liftarm, Modified Frame Thick 5 x 7 Open Center
×5
Technic, Panel Fairing # 4 Small Smooth Long, Side B
Technic, Panel Fairing # 4 Small Smooth Long, Side B
×2
Technic, Panel Fairing # 6 Long Smooth, Side B
Technic, Panel Fairing # 6 Long Smooth, Side B
×3
Technic, Panel Fairing # 5 Long Smooth, Side A
Technic, Panel Fairing # 5 Long Smooth, Side A
×3
Technic, Panel Fairing # 3 Small Smooth Long, Side A
Technic, Panel Fairing # 3 Small Smooth Long, Side A
×2
Technic, Panel Plate 5 x 11 x 1
Technic, Panel Plate 5 x 11 x 1
×4
Technic, Pin Double with Axle Hole with Squared Pin Holes
Technic, Pin Double with Axle Hole with Squared Pin Holes
×4
Technic, Axle and Pin Connector Perpendicular
Technic, Axle and Pin Connector Perpendicular
×8
Technic, Axle Connector 2L (Smooth with x Hole + Orientation)
Technic, Axle Connector 2L (Smooth with x Hole + Orientation)
×8
Technic, Gear 28 Tooth Double Bevel with Pin Hole
Technic, Gear 28 Tooth Double Bevel with Pin Hole
Technic, Gear Differential Housing
Technic, Gear Differential Housing
Technic, Pin 3L with Friction Ridges
Technic, Pin 3L with Friction Ridges
×82
Technic, Gear 12 Tooth Bevel
Technic, Gear 12 Tooth Bevel
×6
Technic, Pin with Friction Ridges and Tow Ball with Round Pin Hole
Technic, Pin with Friction Ridges and Tow Ball with Round Pin Hole
×4
Tile 1 x 6
Tile 1 x 6
×2
Electric Rechargeable Battery 7.3V - Mindstorms
Electric Rechargeable Battery 7.3V - Mindstorms
Electric, Hub - Mindstorms
Electric, Hub - Mindstorms
Hose, Rigid 3mm D.  8L / 6.4cm
Hose, Rigid 3mm D. 8L / 6.4cm
×2
Tile 2 x 4
Tile 2 x 4
Technic, Panel Fairing # 1 Small Smooth Short, Side A
Technic, Panel Fairing # 1 Small Smooth Short, Side A
×2
Technic, Pin 3L with Friction Ridges and Center Pin Hole
Technic, Pin 3L with Friction Ridges and Center Pin Hole
×4
Technic, Axle  4L with Stop
Technic, Axle 4L with Stop
×6
Technic, Panel Fairing # 2 Small Smooth Short, Side B
Technic, Panel Fairing # 2 Small Smooth Short, Side B
×2
Technic, Axle Connector Block Round with 2 Pin Holes and 3 Axle Holes (Hero Factory Weapon Barrel)
Technic, Axle Connector Block Round with 2 Pin Holes and 3 Axle Holes (Hero Factory Weapon Barrel)
×6
Technic, Axle and Pin Connector Perpendicular Double 4L
Technic, Axle and Pin Connector Perpendicular Double 4L
×2
Technic, Axle  4L with Center Stop
Technic, Axle 4L with Center Stop
×2
Technic Turntable 28 Tooth, Base
Technic Turntable 28 Tooth, Base
×2
Technic Turntable 28 Tooth, Top
Technic Turntable 28 Tooth, Top
×2
Rubber Belt Small (Round Cross Section) - Approx. 2 x 2
Rubber Belt Small (Round Cross Section) - Approx. 2 x 2
×2

Common questions about Robot Inventor

How much is LEGO Robot Inventor (51515-1) worth?

Robot Inventor sells for an average of $453.80 used and $594.03 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

Is LEGO Robot Inventor (51515-1) retired?

Yes, Robot Inventor was released in 2020 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms. At its current price point, it has appreciated since retirement.

How do I check if my Robot Inventor set is complete?

Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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