Tangrams in a Box

Here are 2 sets of Tangram pieces. One comes in a handy carry case with swivel top, the other set without. That one is intended to be held in a dedicated PolyPropylene box but I have included a box for the swivel case set also. Both should be packed with the puzzles & solutions shown in one of the images.

One of the files is in *.dtd format for direct use in UK schools where Techsoft 2D Design is widely used to laser cut.

I have always loved Tangrams and after making my Pentominoes in a Case, thingiverse.com/thing:5008 , I also made a Tangram classroom set for our Maths department and then this pocket version to give away. It's 100 mm x 100 mm (4" x 4") in 3.2 mm (1/8") acrylic.

Swivel top version:

There are 2 layers of 3mm and 1 layer of 2mm acrylic. The surround of the Top layer was bonded to the Base layer with thin acrylic cement, Tensol 7. An M3 lock-nut is inserted from the very bottom and held in place by an M3 countersunk fastener that also allows the clear cover