Originally Posted by
ger21
No market because the price will never be what you want it to be. An ATC spindle requires a level of precision far greater than a $200 chinese spindle, which results in a far greater price. If you are doing production work, where the ATC spindle makes you money, then $2000-$3000 for a chines ATC spindle is cheap. Even if they could make one for $1000, it's still 5x more than a standard chinese spindle, and most hobbyists are not going to pay for it.
So yeah, there would be a market for a $400-$500 adapter, if it worked as well as a real ATC. IMO, that's highly unlikely. And your still looking at $1000 all said and done.
I'd be really surprised if you ever see an ATC spindle any cheaper than what you can find now from China, and I'd bet money that you'll never see an adapter for larger spindles.
That, and many other reasons. There's a reason, that I've never seen anybody use that type of spindle on a router.