Posted by clivel on 15/07/2015 17:26:05:
Posted by Brian John on 15/07/2015 14:17:09:
NOTE : The Taig lathes do not seem to come assembled. You have to put them together yourself. The motor is also a separate purchase which seems quite odd.
The prices charged by Taig Australia seem to be rather excessive, especially as they only seem to supply the lathe as a kit.
The US site offers the lathe factory assembled including power-feed for $319US or as a kit for only $171US **LINK** those prices don't include the motor or for some strange reason the tail-stock which is available separately for $43.
The advantage of having the motor as a separate item, is reduced shipping costs and more flexible choice for the end user who may prefer for example to fit a variable speed DC motor.
It is a pity though that Taig does not offer a metric version of the lathe.
Clive
Personally I wouldn't advise some one to buy one unless they are prepared to put up with problems I have already mentioned especially as an only lathe. The reason I owned one and some other small lathes is because if I needed anything larger I could use the machines at work in the evening. I'm a design engineer but my indentures kept the health and safety people happy.
Neil has shown that a lot can be done on the mini lathe but my feelings on first lathes is that something like this is a far better option
http://www.warco.co.uk/metal-lathes-metalworking-lathe-machine/15-wm-180-variable-speed-lathe.html
Size wise it will probably take many people a long time to grow out of it other than one problem I will come to. It has the features a lathe should have but a T slotted cross slide can be very handy if people want to be able to do everything that mags like ME show a lathe being used for. Having never been near one I can't comment on turning or precision. The drive set up may have problems doing things like drilling 1in holes as DC motor control like that doesn't increase torque at the cutting tool in the same way as gears or pulleys do. Few small lathes will drill 1in in one go so it's a question of how many drills have to be used – and if the centre distance is big enough to take blacksmith style drills. 300mm isn't brilliant in this respect but does leave some room for the work. Not much though. Something like 100mm less the thickness of the chuck holding the work. Or get the drills reground a lot shorter. This applies to lots of sizes of drill in practice. This is why 18in centres has been rather popular for a minimum, circa 450mm.
Metric / Imperial. I can understand people who have 2 machines wanting them to be the same but machining is the task of producing items of a certain size the units on the machine don't really matter as they can be converted. I did look at going metric and at the time didn't realise that Boxford had an answer to screw cutting metric threads and that aspect put me right off. I even looked at used lathes from the continent and found that these too were not fitted with indicators. I'm not sure what they do on metric 180's but do know that to cut most of the pitches without having to stop and reverse the lathe that the indicator would need a choice of gears to fit to it. Most screw cutting in practice is done with taps and dies but I see lathe reversal as a very severe disadvantage. I have cut metric threads at home on a Hobbymat.
It's gone now so last time I needed to screw cut a metric thread I part cut a near imperial and finished it with a metric hand chaser rather than fitting the correct change wheels to convert the gearbox and having to reverse the lathe. Pity it isn't so easy to do internal threads but lathe reversal etc cutting true metric threads into blind holes isn't much fun anyway. I also wonder if lathes like the 180 always use an imperial lead screw and just change the slides over. On the other hand I did see complaints in USA forums some time ago that some lathes just had the dials changes one way or the other on the basis that 2.5mm = 0..100" which of course it doesn't. I'd hope that aspect has been fixed now.
John
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