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390

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Robotics Discovery Set

Reference: #9735 · released in 1999

Themes: Mindstorms › RCX

The Robotics Discovery Set LEGO set, released in 1999 in the Mindstorms, RCX theme, holds 390 parts and represents a robotic set.

This set from LEGO includes a total of 390 parts distributed across 109 distinct unique parts.

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390

Total parts

109

Unique parts

LEGO

Universe

Instructions unavailable The building instructions of this set are not available for now

Set parts (109)

390 parts in the box

Hose Rigid 3mm D. 16L / 12.8cm

Hose Rigid 3mm D. 16L / 12.8cm

Yellow

Hose Rigid 3mm D. 36L / 28.8cm

Hose Rigid 3mm D. 36L / 28.8cm

Dark Turquoise

Hose Rigid 3mm D. 44L / 35.2cm

Hose Rigid 3mm D. 44L / 35.2cm

Yellow

Sensor, Touch

Light Gray

Tile 1 x 4 with Groove

Tile 1 x 4 with Groove

Light Gray

Wedge Plate 3 x 3 Cut Corner

Wedge Plate 3 x 3 Cut Corner

Green

Brick 2 x 6

Blue

Tile Special 1 x 1 with Clip and Straight Tips

Tile Special 1 x 1 with Clip and Straight Tips

Black

Brick Round Corner 4 x 4 Full Brick

Brick Round Corner 4 x 4 Full Brick

Blue

Plate Round 2 x 2 with Rounded Bottom [Boat Stud]

Plate Round 2 x 2 with Rounded Bottom [Boat Stud]

Black

Technic Brick 1 x 10 [9 Pin Holes]

Technic Brick 1 x 10 [9 Pin Holes]

Blue

Technic Pin with Friction Ridges Lengthwise and Center Slots

Technic Pin with Friction Ridges Lengthwise and Center Slots

Black

Technic Beam 1 x 4 Thin with Stud Connector

Technic Beam 1 x 4 Thin with Stud Connector

Light Gray

Technic Engine Crankshaft Center

Technic Engine Crankshaft Center

Light Gray

Brick 2 x 4

Blue

Brick 2 x 2

Blue

Brick 1 x 2

Blue

Plate 2 x 2

Light Gray

Plate 1 x 2

Light Gray

Plate 6 x 10

Light Gray

Brick Sloped 45° 2 x 1 with Bottom Pin

Brick Sloped 45° 2 x 1 with Bottom Pin

Light Gray

Tile 2 x 2 with Groove

Tile 2 x 2 with Groove

Dark Turquoise

Tile 1 x 2 with Groove

Tile 1 x 2 with Groove

Light Gray

Plate 1 x 8

Light Gray

Wheel with Split Axle hole

Wheel with Split Axle hole

Dark Turquoise

Plate 1 x 3

Light Gray

Tyre 43 x 17

Black

Technic Gear 8 Tooth

Technic Gear 8 Tooth

Light Gray

Technic Gear 24 Tooth [New Style with Single Axle Hole]

Technic Gear 24 Tooth [New Style with Single Axle Hole]

Light Gray

Technic Gear 40 Tooth

Technic Gear 40 Tooth

Light Gray

Technic Gear 24 Tooth Crown with Reinforcements [New Style]

Technic Gear 24 Tooth Crown with Reinforcements [New Style]

Light Gray

Plate 1 x 6

Light Gray

Technic Pin without Friction Ridges Lengthwise

Technic Pin without Friction Ridges Lengthwise

Light Gray

Technic Brick 1 x 2 [1 Pin Hole]

Technic Brick 1 x 2 [1 Pin Hole]

Blue

Technic Brick 1 x 4 [3 Pin Holes]

Technic Brick 1 x 4 [3 Pin Holes]

Blue

Technic Brick 1 x 8 [7 Pin Holes]

Technic Brick 1 x 8 [7 Pin Holes]

Blue

Technic Brick 1 x 16 [15 Pin Holes]

Technic Brick 1 x 16 [15 Pin Holes]

Blue

Technic Axle 4

Black

Technic Axle 6

Black

Technic Axle 8

Black

Technic Axle 12

Technic Axle 12

Black

Technic Plate 2 x 4 [3 Holes]

Technic Plate 2 x 4 [3 Holes]

Light Gray

Technic Plate 2 x 4 [3 Holes]

Technic Plate 2 x 4 [3 Holes]

Purple

Plate 1 x 4

Yellow

Plate 1 x 4

Light Gray

Plate 1 x 4

Dark Turquoise

Technic Bush

Light Gray

Technic Axle 10

Technic Axle 10

Black

Technic Plate 2 x 8 [7 Holes]

Technic Plate 2 x 8 [7 Holes]

Light Gray

Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin

Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin

Blue

Technic Axle Pin without Friction Ridges Lengthwise

Technic Axle Pin without Friction Ridges Lengthwise

Light Gray

Plate 2 x 10

Light Gray

Technic Brick 1 x 6 [5 Pin Holes]

Technic Brick 1 x 6 [5 Pin Holes]

Blue

Technic Brick 1 x 12 [11 Pin Holes]

Technic Brick 1 x 12 [11 Pin Holes]

Blue

Hinge Brick 1 x 2 Base

Hinge Brick 1 x 2 Base

Black

Hinge Brick 1 x 2 Top Plate Thin

Hinge Brick 1 x 2 Top Plate Thin

Black

Brick Round 2 x 2 with Axle Hole

Brick Round 2 x 2 with Axle Hole

Blue

Dish 4 x 4 Inverted [Radar]

Dish 4 x 4 Inverted [Radar]

White

Technic Gear 16 Tooth with Round Holes [Old Style]

Technic Gear 16 Tooth with Round Holes [Old Style]

Light Gray

Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)

Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)

White

Tile 1 x 8 with Groove

Tile 1 x 8 with Groove

Light Gray

Technic Pin 1/2 without Friction Ridges

Technic Pin 1/2 without Friction Ridges

Light Gray

Brick Sloped 33° 3 x 1

Brick Sloped 33° 3 x 1

Yellow

Plate 1 x 10

Light Gray

Technic Axle 3

Black

Dish 2 x 2 Inverted [Radar]

Dish 2 x 2 Inverted [Radar]

White

Wire with Brick 2 x 2 x 2/3 Pair, 20L

Wire with Brick 2 x 2 x 2/3 Pair, 20L

Black

Wire with Brick 2 x 2 x 2/3 Pair, 36L

Wire with Brick 2 x 2 x 2/3 Pair, 36L

Black

Arm Piece with Pin, 2 Fingers

Arm Piece with Pin, 2 Fingers

Black

Plate Round 1 x 1 with Solid Stud

Plate Round 1 x 1 with Solid Stud

Blue

Plate Round 1 x 1 with Solid Stud

Plate Round 1 x 1 with Solid Stud

Light Gray

Technic Axle and Pin Connector Perpendicular

Technic Axle and Pin Connector Perpendicular

Light Gray

Technic Axle Connector Ridged [with x Hole x Orientation]

Technic Axle Connector Ridged [with x Hole x Orientation]

Light Gray

Technic Brick 1 x 1 with Pin Hole

Technic Brick 1 x 1 with Pin Hole

Blue

Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)

Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)

Light Gray

Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots

Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots

Black

Technic Cam

Light Gray

Tyre 20 x 30 Balloon Medium 49.6 x 20

Tyre 20 x 30 Balloon Medium 49.6 x 20

Black

Wheel 20 x 30 Balloon Medium

Wheel 20 x 30 Balloon Medium

Dark Turquoise

Technic Axle 3 with Stud

Technic Axle 3 with Stud

Dark Gray

Technic Beam 1 x 9 Bent (6 - 4) Thick

Technic Beam 1 x 9 Bent (6 - 4) Thick

Dark Turquoise

Technic Beam 1 x 3 Thin

Technic Beam 1 x 3 Thin

Light Gray

Dome Hemisphere 4 x 4 Multifaceted

Dome Hemisphere 4 x 4 Multifaceted

Trans-Neon Green

Plate Special 1 x 2 with 4 x 4 disk at 90 degrees

Plate Special 1 x 2 with 4 x 4 disk at 90 degrees

Blue

Wing Insectoid Large with Arm Hinge and Circuitry Print Left (Print on Top, Tip on Left, Logo at Back Edge)

Trans-Dark Blue

Wing Insectoid Large with Arm Hinge and Circuitry Print Right (Print on Top, Tip on Right, Logo at Back Edge)

Trans-Dark Blue

Technic Brick 1 x 2 [2 Pin Holes]

Technic Brick 1 x 2 [2 Pin Holes]

Light Gray

Technic Plate 2 x 6 [5 Holes]

Technic Plate 2 x 6 [5 Holes]

Light Gray

Technic Pin 3/4

Technic Pin 3/4

Dark Gray

Technic Beam 1 x 11.5 Double Bent Thick

Technic Beam 1 x 11.5 Double Bent Thick

Purple

Technic Axle and Pin Connector Angled #1

Technic Axle and Pin Connector Angled #1

Blue

Technic Axle and Pin Connector Angled #6 - 90°

Technic Axle and Pin Connector Angled #6 - 90°

Blue

Technic Axle and Pin Connector Angled #5 - 112.5°

Technic Axle and Pin Connector Angled #5 - 112.5°

Light Gray

Technic Axle and Pin Connector Angled #3 - 157.5°

Technic Axle and Pin Connector Angled #3 - 157.5°

Blue

Technic Beam 1 x 5 Thin

Technic Beam 1 x 5 Thin

Light Gray

Plate Special 1 x 2 with Door Rail

Plate Special 1 x 2 with Door Rail

Light Gray

Technic Axle Connector with Axle Hole

Technic Axle Connector with Axle Hole

Light Gray

Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]

Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]

Dark Turquoise

Technic Axle 2 Notched

Technic Axle 2 Notched

Black

Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin

Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin

Dark Turquoise

Technic Axle 5

Black

Launcher, Technic Competition Cannon, Round Bottom with Black Ends

Launcher, Technic Competition Cannon, Round Bottom with Black Ends

Dark Turquoise

Hub, Scout Brick [Complete Assembly]

Hub, Scout Brick [Complete Assembly]

Blue

Technic Bush 1/2 Smooth with Axle Hole Reduced

Technic Bush 1/2 Smooth with Axle Hole Reduced

Light Gray

Motor, 9V Mini [Old Style]

Motor, 9V Mini [Old Style]

Light Gray

Rubber Band Small 13mm (Square Cross Section)

Rubber Band Small 13mm (Square Cross Section)

Black

Ball 41mm

Yellow

Technic Gear 24 Tooth Clutch with Dark Gray or Light Gray Center

Technic Gear 24 Tooth Clutch with Dark Gray or Light Gray Center

White

Projectile, Technic Competition Arrow, Beam Shaft with Solid Black Rubber End

Projectile, Technic Competition Arrow, Beam Shaft with Solid Black Rubber End

Yellow

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