LEGO 9747
Robotics Invention System, Version 1.5

LEGO 9747 Robotics Invention System, Version 1.5 box image
Set number
9747
Theme
RCX
Pieces
731 pcs
Year
1999
Used & parts
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“Robotics Invention System, Version 1.5” is LEGO® “RCX” theme set number 9747. Released in 1999, it has 731 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 145 types

Color split (most first)
Light Gray×308
Black×273
Yellow×46
White×26
Blue×25
Dark Gray×22
Green×14
Trans-Dark Blue×4
Dark Turquoise×4
Purple×4
[No Color/Any Color]×3
Trans-Neon Orange×2
Main parts (most used first)
3713 Technic Bush
Light Gray · ×41
2780 Technic Pin with Friction Ridges Lengthwise and Center Slots
Black · ×25
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
32123a Technic Bush 1/2 Smooth with Axle Hole Reduced
Light Gray · ×19
32002 Technic Pin 3/4
Dark Gray · ×17
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 Pin 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 Pin Holes]
Black · ×10
3710 Plate 1 x 4
Light Gray · ×10
4274 Technic Pin 1/2
Light Gray · ×9
2420 Plate 2 x 2 Corner
Light Gray · ×8
2730 Technic Brick 1 x 10 [9 Pin 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 Pin Holes]
Black · ×8
3706 Technic Axle 6
Black · ×8

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