Single level mazes

I wanted something easy to print and relatively stable. Something I could give to grandkids they they could have fun with. So, I came up with 3 basic mazes.

The "simple maze" is expanded in size (from the 5x5 version shown in the photo) so that my 3 year old grandchild could use it. It requires a small ball bearing (8mm or 5/16" diameter) and an acrylic cover (which can be glued into place after sliding it in) 66-66.5mm square.

The 10x10 and 15x15 mazes are 10 or 15 columns and rows big