About this 3D model

Adapted from a tool I saw in this video:http://www.youtube.com/watch?v=sFXngPx3w3M&t=3m39sIt's quite long so I'll try to get the point in my instructions.Clamp a glass cutter into this setup and you'll quickly be able to turn empty wine, beer, etc. bottles into useful things such as drinking glasses.I have an idea for how the top end of wine bottles could be used, so don't go throwing those bits away yet. Kinda building up to something here ;)All the bolts in the diagram are M4x20mm, and there is a 30mm piece of M8 studding holding the 608 bearing in place.