Bộ chuyển đổi openGrid sang Lego

OpenGrid and Lego are compatible because:
2 openGrid cells = 2 x 28 mm = 56 mm
7 Lego studs = 7 x 8 mm = 56 mm

The snap has an arrow in one of the corners. The stud in the opposite corner has a 45° cut underneath.
A 2x2 square of snaps with the arrows pointing at the center will get you a 7x7 Lego plate with the middle column and row removed (those studs would fall on the actual grid).
Alternatively, point all arrows away from the center to make a 6x6 plate with no gaps (this is technically the corners of four 7x7 plates).
Continue this pattern for as long you need.

Print with a small layer height and nozzle size, the smaller the better.

Both openGrid Full and Lite pegs are available, with 2 options for Lego stud diameters:

• 4.8 mm is the actual diameter used by Lego, however in my test pieces the plastic shrunk while cooling and the fit was very flimsy,

• 5 mm is bigger than a Lego stud, but it appears to shrink to the correct diameter after cooling down.

Also included are the FreeCAD modeling files, if you need to modify the snaps further.

Note: most of the snaps shown on pictures are test pieces, the actual model is the one with rounded studs; I reused them because the differences are miniscule.