That is interesting!
Never knew that Adept offered a vice to go with their Shaper.
It looks quite a beefy piece of kit, as it needs to be. The fine thread would allow a great deal of clamping force to be applied. Maybe that is what broke the original cast iron Tee nuts?
Recently, having acquired an Adept No.2, I made a vice for it.
It was all made from whatever was around, and was a poor imitation of the Precision Vice Type 2 sold by Arc
The cutting forces are resisted by a round bar engaging a semi circular recess in the underside of the main body. The bar is held in engagement by a long angled M8 capscrew.
My vice is clamped to the table by two T nuts made from the heads of long 1/2 BSW bolts.
Since it sees little use, it suffices for my purposes.
Enjoy it!
Howard