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QR size guide

Prove a code will still scan at the size you plan to engrave it.

1

You have a code, and a size you want it on the part.

2

The tool lays the same code out at the smallest sizes worth trying.

3

Engrave the block, scan each one with a phone, and use the smallest that reads.

Every setting

4

What each number in the dialog means, and where it starts.

Module size

Size of one QR dot (mm)

Starts at 0.5 · 0.1 to 5
Dots per side

Dots per side. Count them along the top of your code.

One of: 21, 25, 29, 33, 37, 41, 45
Start x

Left edge (mm)

Starts at 20 · 0 or more
Start y

Top edge (mm)

Starts at 20 · 0 or more

What it is

Draws the outline a QR code fills at a chosen module size, plus one module on its own to compare, so you can see whether it will still scan before you engrave it.

Near this one