The Half H puzzle is a puzzle which was created by Vesa Timonen and is usually made out of wood. 

I have created a 3D printable version of this puzzle which is quick and easy to print.

The goal of this puzzle is to use all seven pieces to make the shape of an upper case letter H. The solution for the puzzle requires you to think three dimensionally :)  

The images show how to set up the puzzle (this is not the solution there is still one piece to be added the link below shows the solution).

 
You need to print:

2 x Red Piece
3 x Green Piece
2 x Purple Piece
 
*** SOLUTION *** 
https://www.dropbox.com/sh/e0qdeclt4w5em2a/AAC-bWYz7ttgust08CNqz3GVa?dl=0