I just purchased a Atlas 618/Craftsman 101.21400 6 inch Swing Lathe serial# 018536, 18 inch bed.
Any idea what year it is?
OK. I added it to the master database on my machine. It will be in the copy in the sticky area as well as in DOWNLOADS the next time that I do an update.
In the meantime, I have a few questions which you may answer or not as you prefer. If you do answer some or all of them, the information will be added to the database.
Where did you find/buy it?
What did you pay?
What accessories did it come with other than what is shown in the photos?
Note that it is not considered a good practice to store the chuck key in the chuck. If some knob-twiddling visitor should happen along and start the motor, one or two things out of several possibilities will happen, all of which will be undesirable.
Best guess at present for year of manufacture is 1969. Unfortunately, the hand-engraved dates that appear on the spindle bearings prior to 1953 on the 10" and early 12" never appear on any of the 6" nor on the Shapers or Mills..
If you decide to invest in a QCTP, the correct size for the 6" will usually be called the 0XA. And be sure to buy at least about 3 extra turning and facing tool holders (usually given as 001) and one extra 002 turning, facing and boring holders. Otherwise you will find that in practice you aren't much better off than without the QCTP.
One thing to check on your machine is whether it has steel or plastic cross slide and compound slide gibs. I think that they should be steel as the change to plastic seems to have occurred around 1972. But if either or both were replaced after 1972, they will be plastic. The change was a penny pinching change that shouldn't have occurred.