Hello and Welcome plumbman!
I have Both those machines.
The Mini lathe you are referring too is a great machine. It comes from many different distributors like Grizzly, Harbor Freight, I got mine from a Cummins Traveling tool store. I have been pleased with it and taught myself how to turn metal. It has a bunch of features, and with a few modifications (Which there are a lot of) you will have a very nice, and precise lathe.
The G0602 is also IMHO a great machine. I got mine second hand and cannot comment on shipping, but the quality of the machine is great, and is has a decent amount of weight too keep it rigid.
The choice you make should be based on what you are planning on building with the lathe. Most of what you see on this site can be done with the mini lathe, but if you plan on doing larger items a step up might be in order. If you are just getting started you must also remember the cost of tooling for the machine. The mini lathe will leave you a lot more meat on the bone to finish your meal, so to speak.
Kel
Kel I also have the Cummings mini-lathe and the G0602. I bought the 10x22 years ago for $1025.00 plus $65.00 shipping. I made my own wood bench. Excellent machine, after many years the motor gave out and replaced it. Other than that no other problems. A quick change gear box is not available, change gears are supplied . If I have to single point threads I use the mini-lathe. I made a crank for it and works well. Mini-lathe at slow speeds loses power , hence the crank.
Also the 10x22 does not cut left hand threads. I made a banjo to hold a gear that when engaged will cut left hand threads. I added a cam lock to the tailstock. Same as the mini-lathe. Removed the camlock as it did not hold the tailstock as well as the original nut. Replaced the camlock with a higher nut made from hex rod and bored thru holes for a tommy bar. Actually a ratchet wrench works well as the tommy bar.
I replaced the tool holder with a QC holder.
When time to change transmission oil get a piece 3/8"x 6" pipe and a couple of fittings to extend the oil plug beyond the bench. First time i changed the oil I made a mess of it. Then got hold of a 3/8" long nipple and a couple of fittings. Makes changing oil much neater.
Comes with two belts, low speed and high speed. I only had the high speed belt on for the break in. I now only use the low speed belt . I keep the belt on the middle pulley. Cone pulley has 3 pulley positions.
Never needed to change positions of the belt.
I had not done single point threading when I bought the lathe. Only short coming is the QC gear box. Left hand threading is easily overcome, changing gears is a PITA. Thats why I use the mini-lathe to thread.
So far the 10x22 has done everything I need . I was pleasantly surprised that this lathe could turn tight tolerances.
I just remembered another minor problem. There is a bolt that tightens the carriage to the bed , used when facing. Keeps the carriage from moving. This bolt and the piece that is under the apron that holds the carriage tight , stripped threads. I tapped it for 1/4/ 28 and installed new cap bolt. This worked for several years. Last year I removed the bolt and the piece it threaded into. Stripped again. Thru the bolt and the piece out. Made a carriage stop same as the one in front of the carriage. This works better than the original
design. I had to slide the stop forward and backward at first. Then decided to fasten the rear carriage stop to the apron. I used JB Weld to hold the stop to the carriage. Been working fine for a year or so. I was going to bolt a it on , instead did a quick fix with the epoxy.
mike