Posted by Jeff Allan on 27/07/2018 22:17:28:
Dave, I'm open to ideas and suggestions. What would you buy?
I'd also like to be able to cut threads. I'm led to believe, rightly or wrongly, that slow speeds would be an advantage. One of the Myford selling points is that they seem to provide this.
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there is no perfect choice, but the important thing is to start somewhere.
My first attempt to buy a second-hand lathe went badly sour so I'm prejudiced! Thirty years later I returned to the hobby and bought a new mini-lathe from Warco.
I learned a lot from this machine, and had fun with it. The main problem was the limited size of work it can do. I'd say it was roughly equivalent to a Myford 10, with some advantages. It had a prismatic bed, is relatively rigid, and a higher top speed – about 2400rpm. It has a DC motor, which is smoother and has higher torque than the single phase AC type fitted to a Myford. For screwcutting I didn't find 150rpm a problem, because I didn't cut screws under power. Arguably on a small machine cutting small diameter threads, you're better off driving the spindle by hand with a crank handle – these are easily made and you can 'feel' cutting problems. Massive support for mini-lathes. There's always a downside; compared with a Myford, they don't look like a quality machine. But although things like plastic gears may look like cheap tat, they work perfectly well.
When I decided I needed a bigger lathe, I looked for a good Super 7 or ex-educational and failed. Where I live second-hand lathes are thin on the ground, and I was looking at 200 mile round trips just to inspect one. Then, I felt, the prices asked for Myfords were too high, sometimes stratospheric. Similar location problem with ex-industrial/ex-educational lathes ; these need to be inspected, ideally seen running, and few of them were within range.
In the end I bought a Warco WM280 which is a tad bigger than a Super 7, with a more flexible 1.5kW motor (3-phase + VFD), 30 to 2500 rpm. In purchasing it I followed forum advice: 'buy the biggest machine you can afford and accommodate'. This is spot on, small work can be done on a big lathe, big work can't be done on a small one. Quite a lot of time is saved by not having to squeeze work into a small space. Buying new keeps life simple: you don't have to sort out transport and delivery, you can have it NOW, you know the lathe won't be worn out, and there's a throat to grip if you find something badly wrong.
The conveniences you get with bigger lathes are worth having. Although you can manage without they save time. Power traverse is a boon.
The thing I dislike most about my WM280 is the noise. The motor is fitted with a separate cooling fan that runs continually, as does another fan cooling the VFD. In use the metal gears clatter. It's "can't listen to the radio" noisy rather than neighbour annoying, but I miss the whirr of my mini-lathe!
If I was buying today, I'd look seriously at the Arc SC4, which Neil is writing about in MEW at the moment. It's smaller than WM280 (which would help ease my cramped workshop), and has an attractive brushless motor. If I had plenty of space, I'd be very tempted to put the effort into finding a bigger second-hand industrial machine.
Hope that helps, I agree with your 'make a start' point. My biggest regret is the time I wasted dithering.
Dave
Edited By SillyOldDuffer on 28/07/2018 10:24:49