Extreme Engines (31072): parts list and STL files

Set 31072, Extreme Engines, from 2018, has 109 pieces in 58 kinds of part and colour. Here is every part, with the ones you can 3D print at home and the ones to buy.

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Free: an STL file for every part you can print, the parts list and a BrickLink shopping list for the rest. Pro adds print-ready plates for a 256 mm bed and our printing guide. About ProYour Pro includes the print-ready plates.

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Extreme Engines, built (3D picture) — What it looks like built. A 3D picture, not a photo, made from the LDraw model by Marc Belanger (CC BY 2.0).

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96to print

13to buy

5spares

58kinds

96 to print, 13 to buy, 5 spares. Print: plain bricks, plates and beams you can make on a home 3D printer. Buy: clear, printed, rubber, electric and very thin parts, which are better ordered. Spares are the extras in the box.

Every part in set 31072

Parts in set 31072, Extreme Engines
Colour	Part	Qty	Print or buy
Dark Azure	11153 Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]	4	Print
Dark Bluish Gray	15712 Tile Special 1 x 1 with Clip with Rounded Edges	4	Print
White	3004 Brick 1 x 2	4	Print
White	3023 Plate 1 x 2	4	Print
White	3623 Plate 1 x 3	4	Print
Light Bluish Gray	3713 Bush	4	Print
Black	44728 Bracket 1 x 2 - 2 x 2	4	Print
Flat Silver	6141 Plate Round 1 x 1 with Solid Stud	4	Print
White	99780 Bracket 1 x 2 - 1 x 2 Inverted	4	Print
Light Bluish Gray	18649 Plate Special 1 x 2 with Handles on Ends	3	Print
White	11215 Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom	2	Print
Bright Light Orange	11477 Brick Curved 2 x 1 No Studs [1/2 Bow]	2	Print
White	15672 Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]	2	Print
Dark Azure	24299 Wedge Plate 2 x 2 Left	2	Print
Dark Azure	24307 Wedge Plate 2 x 2 Right	2	Print
Dark Azure	2432 Tile Special 1 x 2 with Handle	2	Print
White	2877 Brick Special 1 x 2 with Grille	2	Print
Dark Azure	3023 Plate 1 x 2	2	Print
Dark Azure	3069b Tile 1 x 2 with Groove	2	Print
Light Bluish Gray	32028 Plate Special 1 x 2 with Door Rail	2	Print
Dark Bluish Gray	3700 Brick 1 x 2 [1 Pin Hole]	2	Print
Dark Bluish Gray	3701 Brick 1 x 4 [3 Pin Holes]	2	Print
Bright Light Orange	3795 Plate 2 x 6	2	Print
Blue	43093 Axle Pin with Friction Ridges Lengthwise	2	Print
Light Bluish Gray	44294 Axle 7	2	Print
White	61409 Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate	2	Print
White	6141 Plate Round 1 x 1 with Solid Stud	2	Print
Dark Azure	85984 Brick Sloped 30° 1 x 2 x 2/3	2	Print
White	92280 Plate Special 1 x 2, Top Clip [Split]	2	Print
White	99206 Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud]	2	Print
White	15068 Brick Curved 2 x 2 x 2/3	1	Print
Light Bluish Gray	15573 Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	1	Print
White	2654 Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	1	Print
Black	3020 Plate 2 x 4	1	Print
Black	3022 Plate 2 x 2	1	Print
Black	3023 Plate 1 x 2	1	Print
White	30350b Tile Special 2 x 3 with 2 Clips [Thick Open O Clips]	1	Print
Bright Light Orange	3666 Plate 1 x 6	1	Print
White	3710 Plate 1 x 4	1	Print
Light Bluish Gray	4282 Plate 2 x 16	1	Print
Bright Light Orange	43722 Wedge Plate 3 x 2 Right	1	Print
Bright Light Orange	43723 Wedge Plate 3 x 2 Left	1	Print
White	47759 Brick Wedged, Sloped 45° 2 x 4 Triple	1	Print
White	48336 Plate Special 1 x 2 [Side Handle Closed Ends]	1	Print
Light Bluish Gray	54200 Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)	1	Print
White	85984 Brick Sloped 30° 1 x 2 x 2/3	1	Print
White	93589 Brick Wedged, Curved 4 x 2 x 1 1/3 with 1 x 4 Base [Plain]	1	Print
Light Bluish Gray	3713 Bush	1 spare	Print
Light Bluish Gray	54200 Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)	1 spare	Print
Flat Silver	6141 Plate Round 1 x 1 with Solid Stud	1 spare	Print
White	6141 Plate Round 1 x 1 with Solid Stud	1 spare	Print
White	55982 Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes	4	Buy
Black	89201 Tyre 24 x 14 Shallow Tread (Tread Small Hub), Band Around Center of Tread	4	Buy
Black	4735 Bar 1 x 3 [Clip / Anti-Stud]	2	Buy
Black	16091 Steering Wheel Small, 2 x 2 [Reinforced]	1	Buy
Light Bluish Gray	4697b Pneumatic T-Piece (T Bar) [New Style]	1	Buy
Flat Silver	50943 Engine / Air Scoop 2 x 2	1	Buy
Light Bluish Gray	4697b Pneumatic T-Piece (T Bar) [New Style]	1 spare	Buy

Print set 31072 at home

The set tool makes an STL file for each of the 96 printable pieces, sorted by colour, plus a shopping list for the 13 to buy. Free, no account, and it runs on your own phone or computer.

Get the free print files

Pro adds print-ready plates for a 256 mm bed. About Pro

Parts data: Rebrickable, and it can differ slightly from your box. Part shapes: LDraw Parts Library (CC BY 4.0). Browse all sets. Independent project, not sponsored, authorised or endorsed by any brick company.