This message was sent via my computer using the name of Tony Fisher and using the integral text as supplied to me by Tony.
Previously Geert posted brief details of my 2*2*6 and 4*4*6 prototypes. Both puzzles are made from master cubes and inspired by Geerts original 2*2*6.
The diagram shows the internal of my 2*2*6 alongside the 3 different pieces which need to be created to make one.
It also shows how the master cube has to be cut down in addition to Geerts centre modification.
The photos show how I made the fully functional 4*4*6 by adding 2 new complete layers to a master cube.
As with the 2*2*6 it is necessary that the master cube centres can move independant of the surrounding edges and corners.
Instead of rounding them off, however, I have cut a circle into the edges and corners to a depth of 1 cm.
This creates a shelf which the centres (after a little internal modification) can slide around on.
It also creates a space around the centres which the new 4*4*6 edges and corners can slot into.
Further work is required to stop them falling out and the centres are built to the correct height.
All extra parts were made from plastic sheet except for aluminium strenghtening on the corners.
It was necessary to reshape 32 master cube pieces.
This was done with a small saw, file, craft knife and sharpened mini screw driver used as a chisel.
Without electric precision tools I found it difficult to get everything accurate.
Despite nearly 100 hours work (starting Christmas day) the final puzzle can be very difficult to turn at times with corners hanging loosely.
For this reason I am very unlikely to make more.
Thanks to Geert Hellings, Ton Dennenbroek and Dieter Gebhardt for help, inspiration and puzzles.