Robotics Invention System, Version 2.0

LEGO 3804-1 · 2001 · 720 listed pieces · RCX

Explore the parts and colours recorded for this set.

Parts inventory

Part	Name	Colour	Quantity
3713	Technic Bush	Light Gray	40
2780	Technic Pin with Friction Ridges Lengthwise and Center Slots	Black	24
3673	Technic Pin without Friction Ridges Lengthwise	Light Gray	24
3003	Brick 2 x 2	Black	20
3004	Brick 1 x 2	Black	20
3023	Plate 1 x 2	Light Gray	20
32123b	Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced	Light Gray	18
32002	Technic Pin 3/4	Dark Gray	16
3749	Technic Axle Pin without Friction Ridges Lengthwise	Light Gray	16
3040b	Slope 45° 2 x 1 with Bottom Pin	Black	12
3700	Technic Brick 1 x 2 [1 Hole]	Black	12
32062	Technic Axle 2 Notched	Black	10
3666	Plate 1 x 6	Light Gray	10
3701	Technic Brick 1 x 4 [3 Holes]	Black	10
3710	Plate 1 x 4	Light Gray	10
2420	Plate 2 x 2 Corner	Light Gray	8
2730	Technic Brick 1 x 10 [9 Holes]	Black	8
3022	Plate 2 x 2	Light Gray	8
3024	Plate 1 x 1	Light Gray	8
32028	Plate Special 1 x 2 with Door Rail	Light Gray	8
3460	Plate 1 x 8	Light Gray	8
3702	Technic Brick 1 x 8 [7 Holes]	Black	8
3706	Technic Axle 6	Black	8
3738	Technic Plate 2 x 8 [7 Holes]	Light Gray	8
3894	Technic Brick 1 x 6 [5 Holes]	Black	8
3941	Brick Round 2 x 2 with Axle Hole	Black	8
4274	Technic Pin 1/2	Light Gray	8
6558	Technic Pin Long with Friction Ridges Lengthwise	Black	8
3705	Technic Axle 4	Black	7
3707	Technic Axle 8	Black	7
3020	Plate 2 x 4	Yellow	6
3482	Wheel with Split Axle hole	Yellow	6
3647	Technic Gear 8 Tooth	Light Gray	6
3703	Technic Brick 1 x 16 [15 Holes]	Black	6
3832	Plate 2 x 10	Light Gray	6
3895	Technic Brick 1 x 12 [11 Holes]	Black	6
4477	Plate 1 x 10	Light Gray	6
6536	Technic Axle and Pin Connector Perpendicular	Light Gray	6
3001	Brick 2 x 4	Black	5
6589	Technic Gear 12 Tooth Bevel	Light Gray	5
2346	Tyre 30 x 10.5 Offset Tread	Black	4
2817	Plate Special 2 x 2 with 2 Pin Holes	Light Gray	4
2902	Tyre 81.6 x 15 Motorcycle	Black	4
2903	Wheel 81.6 x 15 Motorcycle	White	4
3004	Brick 1 x 2	Yellow	4
3022	Plate 2 x 2	Blue	4
3034	Plate 2 x 8	Green	4
3040b	Slope 45° 2 x 1 with Bottom Pin	Yellow	4
32001	Technic Plate 2 x 6 [5 Holes]	Light Gray	4
32007	Technic Tread Hub	White	4
32009	Technic Beam 1 x 11.5 Double Bent Thick	Yellow	4
32013	Technic Axle and Pin Connector Angled #1	Blue	4
32015	Technic Axle and Pin Connector Angled #5 - 112.5°	Light Gray	4
32017	Technic Beam 1 x 5 Thin	Light Gray	4
32054	Technic Pin Long with Friction Ridges Lengthwise and Stop Bush	Blue	4
32056	Technic Beam 3 x 3 L-Shape Thin	Light Gray	4
32064b	Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]	Green	4
32065	Technic Beam 1 x 7 Thin	Black	4
32137	Technic Modular Connector	Trans-Dark Blue	4
3648a	Technic Gear 24 Tooth [Old Style - Three axle holes]	Light Gray	4
3649	Technic Gear 40 Tooth	Light Gray	4
3650c	Technic Gear 24 Tooth Crown with Reinforcements [New Style]	Light Gray	4
3665	Slope Inverted 45° 2 x 1	Black	4
3665	Slope Inverted 45° 2 x 1	Yellow	4
3700	Technic Brick 1 x 2 [1 Hole]	Yellow	4
3709	Technic Plate 2 x 4 [3 Holes]	Light Gray	4
3737	Technic Axle 10	Black	4
3743	Technic Gear Rack 1 x 4	Light Gray	4
3747b	Slope Inverted 33° 3 x 2 [Connections between Studs]	Black	4
4019	Technic Gear 16 Tooth with Round Holes [Old Style]	Light Gray	4
4185	Technic Wedge Belt Wheel [aka Pulley]	Light Gray	4
4221	Arm Grab Jaw	Black	4
5306bc017	Electric Wire with Brick 2 x 2 x 2/3 Pair, 17 Studs Long	Black	4
6538b	Technic Axle Connector Ridged [with x Hole x Orientation]	Light Gray	4
6629	Technic Beam 1 x 9 Bent (6 - 4) Thick	Black	4
6632	Technic Beam 1 x 3 Thin	Light Gray	4
71509	Rubber Band Small 13mm (Square Cross Section)	Black	4
78c09	Hose, Ribbed 7mm D. 9L	Black	4
78c09	Hose, Ribbed 7mm D. 9L	Dark Turquoise	4
78c12	Hose, Ribbed 7mm D. 12L	Purple	4
4519	Technic Axle 3	Black	3
85543	Rubber Belt Small [15mm ID] [Round Cross Section]	White	3
85545	Technic Rubber Belt Medium [26mm ID] [Round Cross Section]	Blue	3
85546	Technic Rubber Belt 33mm	Yellow	3
2419	Wedge Plate 3 x 6 Cut Corners	Green	2
2654	Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	Black	2
2815	Technic Wedge Belt Wheel Tire	Black	2
2825	Technic Beam 1 x 4 Thin with Stud Connector	Light Gray	2
2854	Technic Engine Crankshaft Center	Light Gray	2
2983	Electric 9V Micromotor Pulley	Light Gray	2
2994	Wheel 30.4 x 14 VR	White	2
3022	Plate 2 x 2	Green	2
32034	Technic Axle and Pin Connector Angled #2 - 180°	Blue	2
32039	Technic Axle Connector with Axle Hole	Light Gray	2
32068	Technic Axle and Pin Connector Perpendicular 3L with Pin Hole	Light Gray	2
32073	Technic Axle 5	Black	2
32138	Technic Pin Double with Axle Hole	Yellow	2
32140	Technic Beam 2 x 4 L-Shape Thick	Black	2
3483	Tire Offset Tread	Black	2
3623	Plate 1 x 3	Yellow	2
3634	Tire 17 x 43	Black	2
3679	Turntable 2 x 2 Plate - Top	Light Gray	2
3680	Turntable 2 x 2 Plate, Base	Blue	2
3701	Technic Brick 1 x 4 [3 Holes]	Green	2
3708	Technic Axle 12	Black	2
3736	Technic, Steering Pulley Large	Light Gray	2
3956	Bracket 2 x 2 - 2 x 2	Light Gray	2
3960	Dish 4 x 4 Inverted [Radar]	White	2
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	Blue	2
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	White	2
4085c	Plate Special 1 x 1 with Clip Vertical [Thick U Clip]	Black	2
4220	Arm Grab Jaw Holder	Yellow	2
4275b	Hinge Plate 1 x 2 with 3 Fingers and Hollow Studs	Black	2
4531	Hinge Tile 1 x 2 1/2 with 2 Fingers on Top	Black	2
4589	Cone 1 x 1 [No Top Groove]	Yellow	2
4589	Cone 1 x 1 [No Top Groove]	White	2
4716	Technic Worm Gear	Black	2
5306bc162	Wire with Brick 2 x 2 x 2/3 Pair, 162 Studs Long	Black	2
6019	Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]	Black	2
6048a	Arm Piece with Pin, 2 Fingers	Black	2
6133	Dragon Wing	Trans-Neon Orange	2
6141	Plate Round 1 x 1 with Solid Stud	Black	2
6141	Plate Round 1 x 1 with Solid Stud	Blue	2
6141	Plate Round 1 x 1 with Solid Stud	White	2
6553	Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)	Light Gray	2
6575	Technic Cam	Light Gray	2
6578	Tyre 30.4 x 14 VR	Black	2
6587	Technic Axle 3 with Stud	Dark Gray	2
6594	Tyre 49.6 x 28 VR	Black	2
6595	Wheel 49.6 x 28 VR with Axle Hole	White	2
680c01	Tread Large, Technic [34 Links]	Black	2
71427c01	Electric Motor 9V Mini-Motor [Old Style]	Light Gray	2
75c19	Hose, Rigid 3mm D. 19L / 15.2cm	Yellow	2
879	Electric Touch Sensor	Light Gray	2
2982c01	Electric Light Sensor with Non-Removable Lead	Blue	1
3033	Plate 6 x 10	Light Gray	1
4142876	Instruction CD-ROM for 3804 [RIS v2.0]	[No Color]	1
4153678	Paper Test Mat for Mindstorms Robotics Invention System [v2.0]	[No Color]	1
6007	Brick Separator v1.0	Dark Gray	1
6573	Technic Gear Differential, 24 -16 Teeth	Dark Gray	1
76019	Technic Gear 24 Tooth Clutch with Dark Gray or Light Gray Center	White	1
884	Electric Mindstorms RCX 2.0 Complete Assembly [No Power Jack]	Yellow	1
x400c25	Electric Fibre Optics Cable Wide 25L [RIS v2.0]	Trans-Clear	1
x431c01	Electric IR Transmitter Tower, USB with Black Front	Dark Gray	1