Cutting Tetrix gears

[Forhire]

Originally Posted by asid61

Yes, I have seen that, and I really want to buy it, but the only site the castings are available from is in the UK and the thing is expensive enough already.

Martin Model has the castings available based on Tom Hammond's patterns. They appear more robust than the original Jacob's castings. Ships from Oregon. 14 Piece Gear Hobber Casting Kit + Drawings $495.
http://www.martinmodel.com/MMPtools.html

Here's a video: https://www.youtube.com/watch?v=ZpJOEj-kX_o