开云体育

Depends very much on condition. A like-new Enco chuck is probably made of cast iron, IIRC. Drop it on a concrete floor just once, and it can turn to crap. Cast iron is a bit brittle, and easily broken.? One of our other members is trying to repair his Enco chuck because he dropped it, and the teeth that guide one of the jaws chipped off.? The Sherline chucks are made from case-hardened 12L14 steel. It's a bit tougher, but the L is a small percentage of lead in the alloy, so it's not as hard and tough as 1214 steel would be. IF you can find one for the same price as the other, either would do just fine unless you're getting clumsy. I am, myself, so a cheaper and easier to replace chuck was one of the considerations when I bought my Indian 4-jaw. I can replace it three more times for the cost of an Enco chuck. I'm also a cheap bastrich! I hate spending a lot of money for stuff that may not be in really good shape. A bunch of the stuff I need/want for my Unimats, I'm making myself. Not sure my skills are up to making a 4-jaw chuck from scratch just yet. :) Did make an ER25 collet chuck, though, adapted from one of the ER25 collet chuck extensions like this one:??Though the one I used came from eBay, and had a 100mm shank length.?

One way for a cheap bastrich like me to deal would be to make your own 4-jaw chuck, and such, to fit the Unimat, but based on David Gingery's Build Your Own Metalworking Shop From Scrap, Volume 6 of? 7, The Dividing Head and Deluxe Accessories.?

Depends on what you know, what you would like to learn, and how much of a hurry you're in to get to where you want to be. Buying everything is faster, making everything is slower, but you learn more. A little of each is probably the best way to go, and only you can figure out which parts work best for you. Also perhaps depends on what equipment you have already, and definitely on what skills you have. I cheated a few years ago, and took a precision manual machining class, since I'd forgotten most everything from the class I took in high school nearly 50 years ago now. Been doing non-machining for a lot of that time, as well as working as several kinds of mechanics over the past five decades, but there were some big holes in my knowledge. Accurate measurement was the biggie for me. But I got better! ;)

Bill in OKC?