Lego QR-Code
I created a Lego QR Code linking to 0xfab1.net with Bricklink Studio.
I used qrious by neocotic to create the QR-Code.
QR Code creation
To match the QR-Code pixels with a valid lego base plate size I tried a few options to find a match.
Possible lego base plates
14x14 → 14,28,42,56,70
16x16 → 16,32,48,64,72
24x24 → 24,48,72
32x32 → 32,64
48x48 → 48
50x50 → 50
Since a QR-Code has the same length as hight any of the above values would fit perfectly on a given lego base plate.
The initial idea of using the value https://0xfab1.net/make/lego/qr-code and therewith referencing to this page doesn't result in a perfect match despite trying different paddings:
7% padding: 29x29 or *2 for double width = 58x58
15% padding: 29+29 or *2 for double width = 58x58
25% padding: 33x33 or *2 for double width = 66x66
30% padding: 37x37 or *2 for double width = 74x74
Luckily it didn't work out as the link has now changed an would have been invalid as i refuse to take care of redirects. The next attempt would to go for https://0xfab1.net. The results are:
7% padding: 25x25 or *2 for double width = 50x50
15% padding: 25x25 or *2 for double width = 50x50
25% padding: 25x25 or *2 for double width = 50x50 → best option
30% padding: 29x29 or *2 for double width = 58x58
50x50 is a valid lego base plate and a possible result for the QR-Code. I will go with the 25% padding option as this will lead to better scanning results without any downsides.
The value "https://0xfab1.net" as QR-Code.
Bricklink Studio
I didn't find a cool way to automatically build the QR-Code in Bricklink Studio so I just opened the image of the QR-Codes shared above and rebuilt it using different flat tiles. Classic QR-Codes have black and white pixels so I went with that look and chose a white 50x50 baseplate and used different sized black tiles for the pixels.
The result is:
- this qrcode.io Bricklink file
- this QR code.xml part-list file
as well as this cool video:
Bricklink Order
Fortunately you can import *.io files in Bricklink directly. It will search for sellers based on your preference (e.g. currency, location). The outcome initially was this list since i used as little amount of plates as possible:
| BLItemNo | ElementId | LdrawId | PartName | BLColorId | LDrawColorId | ColorName | ColorCategory | Qty | Weight |
|---|---|---|---|---|---|---|---|---|---|
| 3068b | 306826 | 3068b | Tile 2 x 2 with Groove | 11 | 0 | Black | Solid Colors | 38 | 48 |
| 69729 | 69729 | Tile 2 x 6 | 11 | 0 | Black | Solid Colors | 76 | 135 | |
| 87079 | 4560182 | 87079 | Tile 2 x 4 | 11 | 0 | Black | Solid Colors | 38 | 9 |
| 3068b | 306801 | 3068b | Tile 2 x 2 with Groove | 1 | 15 | White | Solid Colors | 48 | 48 |
| 69729 | 69729 | Tile 2 x 6 | 1 | 15 | White | Solid Colors | 49 | 135 | |
| 4186a | 4186a | Baseplate 50 x 50 | 1 | 15 | White | Solid Colors | 1 | 235 | |
| 87079 | 4560178 | 87079 | Tile 2 x 4 | 1 | 15 | White | Solid Colors | 44 | 9 |
Turns out the 50x50 plate is not available and that the non 2x2 tiles are way more expensive.
So i ordered a 50x50 plate online somewhere else and changed the order to 2x2 tiles only, which reduced the price significantly (roughly 40% cheaper).
I went with 350 since 50x50/4 = 625 and I need roughly half black, half white tiles. Since i didn't re-do the build in Bricklink Studio based on 2x2 tiles I added a few safety tiles = 350 per color which was still cheaper than to original order.
| BLItemNo | ElementId | LdrawId | PartName | BLColorId | LDrawColorId | ColorName | ColorCategory | Qty | Weight |
|---|---|---|---|---|---|---|---|---|---|
| 3068b | 306801 | 3068b | Tile 2 x 2 with Groove | 1 | 15 | White | Solid Colors | 350 | 48 |
| 3068b | 306826 | 3068b | Tile 2 x 2 with Groove | 11 | 0 | Black | Solid Colors | 350 | 48 |
Delivery and building lego qr-code
All pieces finally arrived and putting it all together was easier and faster than expected. I hope i didn't mess up any pixel - well at least scanning the lego works ¯_(ツ)_/¯
This is the final result :)
