Tiny Stuff That Works Beats Big Stuff That Sits
Thursday, December 29th, 2011Chihuahua Lathe Making Chips
Og is getting his revenge.
I bought a Clausing lathe a few years back, and it turned out to be in worse condition than I had been led to believe. Also, it wasn’t the lathe I thought I was buying, and the seller would not pay the whole cost of return shipping. It doesn’t do metric threads, and the stuff to change that is extremely expensive, IF you can find it. Og said I should get a new Chinese lathe, and he was right.
Last week, I took delivery of my first Chinese lathe: a Big Dog 7 x 14. It came with a tachometer, two rests, a drill chuck, threading gears, a three-jaw chuck, a turret post, and centers. For a few bucks more, I added a quick change tool post, a carriage stop, a four-jaw chuck, and parting tools.
I’ve been using it for a while, although I’ve been extremely busy with Noche Buena stuff, so I haven’t been able to do much. It’s fantastic. It’s convenient, it takes surprisingly deep cuts, and it seems to be well made. The first time I put something in the three-jaw chuck, the runout was undetectable on a dial indicator. The needle wasn’t still, but it moved so little and so randomly I couldn’t tell the runout from the surface noise. That’s pretty danged good.
The rests are wonderful. A Clausing rest costs anywhere from two hundred to three hundred bucks, and they turn up for sale about once a decade. That means you can forget about turning anything long and thin, or about 50% of the things you would want to put on the lathe.
The Big Dog is portable, so you can run it on a Workmate, which is probably Og’s favorite tool of all time.
I am no machinist, but I think I can safely say that anything that fits on this lathe, you can work. It may be a little slower than a big lathe, but it actually gets the job done, which sets it apart from the Clausing.
I wanted to make a stainless shift linkage for my Moto Guzzi motorcycle. This was going to be my first semi-precision project. It would require machining a rod to .078″ in diameter and threading both ends. When I got started, I realized the Clausing was not going to thread it, and that’s really the honeymoon ended.
This week I started again, on the Big Dog. I had a stainless hammer handle I had made, and which I knew I would never use, so I decided to turn it down to the right size. It’s really too short to do this conveniently. In order not to be crowded, you need some extra metal at the ends. But it seems to be working. I put the follow rest on the lathe and went to town.
When I got to work, everything went fine, except for the tailstock position. The live center kept backing out of the work. At first, I failed to lock the ram, so that was my fault, but it also happened when the ram and tailstock clamp were locked. I found that there was a little locknut on the front of the tailstock, and it determined how tight the clamp was. A few seconds’ work with a wrench fixed it.
I have some cute little carbide tools for the tiny tool post, so I decided to use one, in addition to an old 1/4″ round-nose tool I had ground. It worked great. Long stainless chips spiralled all over the garage, and the finish on the work was not bad at all.
If I can get the threading to work, I’ll try to finish this thing. I may have to scrap it and start with a longer piece, but it has served its purpose as a learning tool, so I can’t complain.
I’m looking for a bigger lathe. The Clausing has to go. I stupidly bought a DRO for it. Oh, well. It still has to go. Working with the Big Dog has reminded me how great it is to work on metal instead of working on my lathe. It seems like every time I want to use the Clausing, I can’t do it, or I have to find some clever way to work around the lack of tooling. That’s no good. I want to walk into the garage, flip a switch, throw crap on the lathe, and start turning. I want it to be just like my mill or my table saw. Turn on, do work, turn off, clean up, have beer.
Some guy in Tampa is moderately interested in the Clausing. I think I turned him off, though. I told him everything. The Clausing is a good quality lathe, and it appears to be in good working condition. It’s just limited in what it can do, and in the availability of affordable tooling. It’s not a junkheap. I guess I’m a bad salesman. I wanted to make sure I overcame the temptation to describe the lathe in a flattering way that would get it out the door, so maybe I went too far.
I found some interesting machines. First, I found a Yam (no kidding) Taiwanese lathe that had belonged to a prototype builder who used it in his garage. Here’s a photo. I could have had this for $3500. It’s a very highly regarded lathe, in spite of the hilarious name. Sadly, someone nailed it while I was getting a shipping quote.
I found a Millport, locally. It looked wonderful. I wanted to inspect it in person, so I sent an email. I used to think Millport had to be a horrible brand, because the name was so stupid. It was like they weren’t even trying. But I found out they make excellent machinery. Taiwanese. But as soon as I inquired, I found out there was a deposit on it.
I just found a Famot. It looks like it has been run about three hours. This is supposed to be a fantastic Polish lathe, considerably better than Taiwanese. It’s expensive, but it has every piece of tooling imaginable, and it should last forever. I put in an inquiry. I’m waiting to find out who just bought it. Someone up the road has a Nardini MS 1440E which looks like it hasn’t been used too much. I have read that the green Nardinis are good machines, but the blue and white ones are horrible. This one is green. Hopefully not the result of spray-painting.
I considered a new Birmingham, but everyone says they stink. I also inquired about GMC, the company that made my mill. I emailed the guy who sold it to me, but he never answered, and neither did GMC’s headquarters. So I looked around for Taiwan stuff. I found Eisen lathes. They’re not expensive, but they’re supposed to be very good. Their 1440 appears to be the same as Webb’s, and Webb is a good company. The lathes are not real heavy, however (1364 pounds), so the rigidity is something to wonder about. Anyway, you can get a new one for $7500, which is not bad at all.
I found another brand of new equipment: Clark. This is not the Chinese “Clarke” lathe that costs about forty dollars to make. It’s different. They make a 2500-pound lathe with lots of features and tooling, and you can get one shipped to you for $6000. The big problem with Clark is that no one knows about them. I contacted three sellers. One said the machines were Taiwanese. One said they were Chinese. The third gave me the truth: they have Chinese castings, but the other stuff is Taiwanese. That’s actually pretty appealing. I don’t think it takes a lot of skill to make a lathe bed, but screws, slides, bearings, chucks…you want a competent manufacturer for that stuff. My mill is made from Taiwanese parts, but it was assembled in China. I can’t complain at all. The only problems I’ve had were mostly the result of my own stupidity.
I guess I better put the Clausing on Craigslist and Ebay and get serious about replacing it. I want to get something I will never need to upgrade. Never buy cheaper or smaller tools than you can afford. You will always regret it in the end, and it will cost you more money than buying right the first time.
I’ll tell you something funny. I think I get much clearer guidance from God than I did back in the Clausing days. Maybe that’s how I ended up with the wrong machine. I’ve mentioned this before: when I started looking at the Big Dog, I kept feeling something inside me saying, “Just buy it. Just buy it. Go buy it. Buy it now.” And it worked out great. Hopefully I’ll get the same helpful guidance the next time around.