hi, you guys are right , it was a photo cube from habitat in the uk, the inner cube was discarded, each clear face was squared up and a true 45 mitre was cut as there was no chance of getting a seamless joint other wise ,they were pretty wonky, the points in the centre of each face were turned up out of 10mm acrylic rod and uv glued into a milled hole into the middle of each face .the mitre faces were sanded to help the capillary action,the cube was dry assembled with masking tape pulling all the faces tight together, they were then uved together leaving one face unglued ,this was held on with sticky tape wrapped around the edge and folded over , it was the perfect width and was almost invisible ,the pattern was laser etched on to the surface only to a depth of around 1/4mm. the inner cube was made from semi-white acrylic 3mm thick, cant remember how big it was, same sticky tape method was used on the 6th face so the standbys could switch batteries quickly with little fuss , hope this helps, keep up the good work! sorry I cant be more help with the inner I made the originals along time ago and in a bit of a hurry, my best guess would be about 24mm smaller than the size of the inside of the outer cube , ie the acrylic points were give ir take 12mm long. good luck ! Alan H
