Tutorial: making movement trays

The 8th edition of Warhammer rulebook has brought many vital changes to the game. One of those changes was that units are much bigger than ever before – now playable units has grown from 10-20 on foot models to 30-50 models and even more. Such numbers are impossible to play freely without accurate movement tray. Of course Games Workshop is supplying their own solution as a DIY movement trays, but they are lasting for about 2-3 trays, are very made from thick plastic which is cumbersome and in their construction they appear to have wrong… dimensions.
To cope with this problem I would like to show you my method of preparing trays. So, let`s start!