Ultimate Builders Set (3800-1) is a RCX LEGO set released in 2001 with 322 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 70 unique part types.
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Parts in this set
70 parts · page 1 of 2 · updating…
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Arm Piece with Pin, 2 Fingers6048a · ×4 · Black -
CD-Rom, Ultimate Builders Set (Set 3800)4153273 · ×1 · [No Color/Any Color] -
Hose, Pneumatic 4mm D. 195L5102c195 · ×1 · Trans-Clear -
Large Figure Throwing Disk, MindStorms Print32171pr0062 · ×6 · Black -
![Motor, 9V Mini [Old Style]](https://cdn.rebrickable.com/media/parts/ldraw/7/71427.png)
Motor, 9V Mini [Old Style]71427c01 · ×1 · Light Gray -
Plate Round 1 x 1 with Solid Stud6141 · ×36 · Light Gray -
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)4032a · ×2 · White -
Plate Special 1 x 2 with Door Rail32028 · ×4 · Light Gray -
Plate Special 2 x 2 with 2 Pin Holes2817 · ×4 · Light Gray -
Pneumatic Cylinder with 2 Inlets Medium (48mm) with Black Top2793c01 · ×1 · Trans-Clear -
Pneumatic Pump 1 x 5.574982 · ×1 · Blue -
Pneumatic Switch with Top Studs75215 · ×1 · Light Gray -
Rubber Band Small 13mm (Square Cross Section)71509 · ×4 · Black -
String Cord Medium Thickness 200cm14728c200 · ×1 · Black -
Technic Axle 103737 · ×1 · Black -
Technic Axle 2 Notched32062 · ×5 · Black -
Technic Axle 34519 · ×5 · Black -
Technic Axle 3 with Stud6587 · ×4 · Dark Gray -
Technic Axle 532073 · ×4 · Black -
![Technic Axle 5.5 with Stop [Flat Short End]](https://cdn.rebrickable.com/media/parts/elements/4120471.jpg)
Technic Axle 5.5 with Stop [Flat Short End]32209 · ×2 · White -
Technic Axle and Pin Connector Angled #4 - 135°32192 · ×2 · Black -
Technic Axle and Pin Connector Perpendicular6536 · ×6 · Black -
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole32184 · ×4 · Blue -
Technic Axle and Pin Connector Perpendicular Double32291 · ×4 · Black -
![Technic Axle Connector Ridged [with x Hole x Orientation]](https://cdn.rebrickable.com/media/parts/elements/4113807.jpg)
Technic Axle Connector Ridged [with x Hole x Orientation]6538b · ×2 · Blue -
Technic Axle Connector with Axle Hole32039 · ×4 · Black -
Technic Axle Connector with Axle Hole32039 · ×4 · Light Gray -
Technic Axle Pin without Friction Ridges Lengthwise3749 · ×6 · Light Gray -
Technic Beam 1 x 15 Thick32278 · ×5 · Blue -
Technic Beam 1 x 15 Thick32278 · ×6 · Black -
Technic Beam 1 x 3 Thick32523 · ×6 · Blue -
Technic Beam 1 x 3 Thin6632 · ×4 · Black -
Technic Beam 1 x 3 Thin6632 · ×2 · Blue -
Technic Beam 1 x 3 Thin6632 · ×2 · Light Gray -
Technic Beam 1 x 4 Thin32449 · ×4 · Blue -
Technic Beam 1 x 4 Thin32449 · ×4 · Black -
Technic Beam 1 x 4 Thin with Stud Connector2825 · ×2 · Light Gray -
Technic Beam 1 x 5 Thick32316 · ×8 · Blue -
Technic Beam 1 x 7 Bent (4 - 4) Thick32348 · ×2 · Blue -
Technic Beam 1 x 7 Thick32524 · ×4 · Blue -
Technic Beam 1 x 9 Bent (7 - 3) Thick32271 · ×2 · Trans-Neon Green -
Technic Beam 1 x 9 Bent (7 - 3) Thick32271 · ×2 · Trans-Neon Orange -
Technic Beam 2 x 4 L-Shape Thick32140 · ×4 · Black -
Technic Beam 3 x 5 L-Shape Thick32526 · ×2 · Black -
Technic Beam 3 x 5 L-Shape Thick32526 · ×2 · Yellow -
Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin32250 · ×4 · Blue -
![Technic Beam Triangle Thin [Type I]](https://cdn.rebrickable.com/media/parts/elements/4254627.jpg)
Technic Beam Triangle Thin [Type I]2905 · ×2 · Blue -
Technic Brick 1 x 1 with Pin Hole6541 · ×14 · Black