Build engine

Tell it the sets you own; it shows what you can (nearly) build and the exact parts to buy for a target.

🧱 What you can (nearly) build

%	Set	Name	Buy pcs	Lots
100%	10256-1	Taj Mahal	0	0
93%	10189-1	Taj Mahal	420	21
81%	10230-1	Mini Modulars	254	95

🎯 Build Back to the Future Time Machine — 5% complete

Buy 1,774 pieces across 446 lots.

🛒 Source the gap from the parts marketplace

446 of 446 part-lots available now (100%) · 0 still to import. Total-to-door R4,505 across 1 order(s) — parts + per-seller shipping.

BrickBits Spares · 518 lotsR4,505 (parts R4,435 + ship R70)

The missing parts

Buy	Part	Colour	Name
38×	85984	Light Bluish Gray	Slope 30° 1 x 2 x 2/3
30×	3023	Black	Plate 1 x 2
22×	61332	Black	Technic Pin with Friction Ridges Lengthwise with No Center Slots
22×	6141	White	Plate Round 1 x 1 with Solid Stud
22×	99781	Light Bluish Gray	Bracket 1 x 2 - 1 x 2
21×	3023	Trans-Light Blue	Plate 1 x 2
20×	3024	Black	Plate 1 x 1
17×	34103	Black	Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper)
15×	15573	Light Bluish Gray	Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)
14×	11458	Light Bluish Gray	Plate Special 1 x 2 with Pin Hole on Top
14×	32002	Tan	Technic Pin 3/4
14×	4070	Black	Brick Special 1 x 1 with Headlight
13×	3023	Light Bluish Gray	Plate 1 x 2
13×	3024	Dark Bluish Gray	Plate 1 x 1
13×	85984	Black	Slope 30° 1 x 2 x 2/3
12×	11477	Metallic Silver	Slope Curved 2 x 1 No Studs [1/2 Bow]
12×	11478	Black	Technic Beam 1 x 5 Thin with Axle Holes on Ends
12×	2420	Yellow	Plate 2 x 2 Corner
12×	2420	Light Bluish Gray	Plate 2 x 2 Corner
12×	3022	Black	Plate 2 x 2
12×	36841	Dark Orange	Bracket 1 x 1 - 1 x 1
12×	3937	Dark Bluish Gray	Hinge Brick 1 x 2 Base
12×	61409	Black	Slope 18° 2 x 1 x 2/3 with 4 Slots / Grate
12×	99207	Light Bluish Gray	Bracket 1 x 2 - 2 x 2 Inverted
12×	99780	Dark Bluish Gray	Bracket 1 x 2 - 1 x 2 Inverted
11×	15712	Black	Tile Special 1 x 1 with Clip with Rounded Edges
10×	11214	Dark Bluish Gray	Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle
10×	2431	Black	Tile 1 x 4 with Groove
10×	3021	Black	Plate 2 x 3
10×	3024	Light Bluish Gray	Plate 1 x 1
10×	32028	Black	Plate Special 1 x 2 with Door Rail
10×	32123b	Yellow	Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
10×	35787	Light Bluish Gray	Tile 45° Cut 2 x 2 (Triangle)
10×	3710	Dark Bluish Gray	Plate 1 x 4
10×	37762	Flat Silver	Equipment Candlestick
10×	85984	Dark Bluish Gray	Slope 30° 1 x 2 x 2/3
10×	86996	Medium Nougat	Plate 1 x 1 x 2/3 with Open Stud
9×	15573	Black	Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)
9×	3020	Light Bluish Gray	Plate 2 x 4
9×	32062	Red	Technic Axle 2 Notched