Fat Trax (8663): parts list and STL files

Set 8663, Fat Trax, from 2006, has 42 pieces in 21 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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Fat Trax, built (3D picture) — What it looks like built. A 3D picture, not a photo, made from the LDraw model by Massimo Maso (CC BY 2.0).

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27to print

15to buy

1spares

21kinds

27 to print, 15 to buy, 1 spare. 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 8663

Parts in set 8663, Fat Trax
Colour	Part	Qty	Print or buy
Dark Bluish Gray	3020 Plate 2 x 4	4	Print
White	3062b Brick Round 1 x 1 Open Stud	4	Print
Lime	6141 Plate Round 1 x 1 with Solid Stud	4	Print
Light Bluish Gray	2436 Bracket 1 x 2 - 1 x 4 [Square Corners]	2	Print
Black	4070 Brick Special 1 x 1 with Headlight	2	Print
Dark Bluish Gray	6157 Plate Special 2 x 2 with Wheels Holder Wide	2	Print
Metallic Silver	2412b Tile Special 1 x 2 Grille with Bottom Groove	1	Print
White	2412b Tile Special 1 x 2 Grille with Bottom Groove	1	Print
Black	3020 Plate 2 x 4	1	Print
Light Bluish Gray	3022 Plate 2 x 2	1	Print
Dark Bluish Gray	3031 Plate 4 x 4	1	Print
Metallic Silver	30602 Brick Curved 2 x 2 with Lip, No Studs	1	Print
Light Bluish Gray	3069b Tile 1 x 2 with Groove	1	Print
Light Bluish Gray	3795 Plate 2 x 6	1	Print
Black	45677 Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs	1	Print
Lime	6141 Plate Round 1 x 1 with Solid Stud	1 spare	Print
Lime	50947 Wheel Arch, Mudguard 1 x 4 1/2	4	Buy
Black	6014b Wheel 11 x 12 with Hole Notched for Wheels Holder Pin	4	Buy
Black	6015 Tyre 21 x 12 with Offset Tread Small Wide	4	Buy
Trans-Brown	54200 Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)	2	Buy
[No Color/Any Color]	54390 Sticker Sheet for Set 8663-1, Sheet 2 for Set 6111-1	1	Buy

Print set 8663 at home

The set tool makes an STL file for each of the 27 printable pieces, sorted by colour, plus a shopping list for the 15 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.