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Robotics Discovery Set (9735-1) is a RCX LEGO set released in 1999 with 390 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing RCX sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 109 unique part types.
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Parts in this set
109 parts · page 1 of 3 · updating…
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Arm Piece with Pin, 2 Fingers6048a · ×2 · Black -
Ball 41mm72048 · ×2 · Yellow -
Brick 1 x 23004 · ×16 · Blue -
Brick 2 x 23003 · ×2 · Blue -
Brick 2 x 43001 · ×10 · Blue -
Brick 2 x 62456 · ×2 · Blue -
Brick Round 2 x 2 with Axle Hole3941 · ×4 · Blue -
Brick Round Corner 4 x 4 Full Brick2577 · ×4 · Blue -
![Dish 2 x 2 Inverted [Radar]](https://cdn.rebrickable.com/media/parts/elements/474001.jpg)
Dish 2 x 2 Inverted [Radar]4740 · ×2 · White -
![Dish 4 x 4 Inverted [Radar]](https://cdn.rebrickable.com/media/parts/elements/396001.jpg)
Dish 4 x 4 Inverted [Radar]3960 · ×2 · White -
Dome Hemisphere 4 x 4 Multifaceted30208 · ×2 · Trans-Neon Green -
Hinge Brick 1 x 2 Base3937 · ×2 · Black -
Hinge Brick 1 x 2 Top Plate Thin3938 · ×2 · Black -
Hose Rigid 3mm D. 16L / 12.8cm75c16 · ×2 · Yellow -
Hose Rigid 3mm D. 36L / 28.8cm75c36 · ×2 · Dark Turquoise -
Hose Rigid 3mm D. 44L / 35.2cm75c44 · ×2 · Yellow -
![Hub, Scout Brick [Complete Assembly]](https://cdn.rebrickable.com/media/parts/ldraw/1/32104c01.png)
Hub, Scout Brick [Complete Assembly]32104c01 · ×1 · Blue -
Launcher, Technic Competition Cannon, Round Bottom with Black Ends32074c02 · ×1 · Dark Turquoise -
![Motor, 9V Mini [Old Style]](https://cdn.rebrickable.com/media/parts/ldraw/7/71427.png)
Motor, 9V Mini [Old Style]71427c01 · ×2 · Light Gray -
Plate 1 x 104477 · ×2 · Light Gray -
Plate 1 x 23023 · ×14 · Light Gray -
Plate 1 x 33623 · ×4 · Light Gray -
Plate 1 x 43710 · ×2 · Yellow -
Plate 1 x 43710 · ×6 · Dark Turquoise -
Plate 1 x 43710 · ×4 · Light Gray -
Plate 1 x 63666 · ×2 · Light Gray -
Plate 1 x 83460 · ×2 · Light Gray -
Plate 2 x 103832 · ×2 · Light Gray -
Plate 2 x 23022 · ×2 · Light Gray -
Plate 6 x 103033 · ×2 · Light Gray -
Plate Round 1 x 1 with Solid Stud6141 · ×3 · Blue -
Plate Round 1 x 1 with Solid Stud6141 · ×3 · Light Gray -
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)4032a · ×2 · White -
![Plate Round 2 x 2 with Rounded Bottom [Boat Stud]](https://cdn.rebrickable.com/media/parts/elements/265426.jpg)
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]2654 · ×2 · Black -
Plate Special 1 x 2 with 4 x 4 disk at 90 degrees30209 · ×2 · Blue -
Plate Special 1 x 2 with Door Rail32028 · ×4 · Light Gray -
Projectile, Technic Competition Arrow, Beam Shaft with Solid Black Rubber End76110c01 · ×2 · Yellow -
Rubber Band Small 13mm (Square Cross Section)71509 · ×4 · Black -
Sensor, Touch879 · ×2 · Light Gray -
Slope 33° 3 x 14286 · ×2 · Yellow -
Slope 45° 2 x 1 with Bottom Pin3040b · ×4 · Light Gray -
Slope Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin3747b · ×2 · Blue -
Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)6553 · ×2 · Light Gray -
Technic Axle 103737 · ×2 · Black -
Technic Axle 123708 · ×2 · Black -
Technic Axle 2 Notched32062 · ×4 · Black -
Technic Axle 34519 · ×2 · Black -
Technic Axle 3 with Stud6587 · ×2 · Dark Gray