Machining Your Own Milling Attachment （铣加工自己的依恋）.pdf

You can learn some new tricks by Machining Your Own Milling Attachment By Harry Walton folding money. But here is one you can make from two castings. They cost about a YOU do not begin to get full use from a fourth what a finished attachment would. lathe until you have a milling attach- Machining them is fun, and may even teach ment. With it you can do slotting, keyway you a few handy dodges. For instance, you cutting, gear shaping, slitting and grooving. mill parts of the castings to make the at- You can saw stock square or at angles, and tachment youre going to mill with! spot holes in work with pinpoint accuracy. When finished you have a husky, well- A milling attachment costs a handful of designed lathe accessory that will not let 214 POPULAR SCIENCE - . Two kinds of castings fit different compound mountings HERE ARE CASTINGS for a popular 9 lathe OPPOSITE TYPE of castings will fit a popu- having the dovetail post on the underside of lar 10 lathe, which has the dovetail post on its compound rest and a recess in the top of top of the cross slide and a recess to fit it in the cross slide. The base casting (at left the compound rest. The base casting (at left above) therefore has metal for a similar above) therefore has a cored recess. Vise cast- post, while the vise casting to right of it has ing has metal for a post. Kits include screws a cored hole to be bored out for a recess. and stock for vise jaw and locking pins. GRIP THE BASE in a four-jaw chuck if avail- TURN A 60° POINT on a 3/8 rod.