I’m leaning toward the Egyptian route but I think I’m going to limit the weight to about 250 pounds. I’m currently looking at the Grizzly G4000. I don’t think it’s as good a deal as the 602 but the 400+ pounds is more than I want to deal with. I do like that the 4000 has a quick change gear box. They aren’t in stock, but it says more on the way. Hopefully it hasn’t said that for years.
Has anyone had any experience with the G4000?
If you look at the different vendors many are having issues with stocking lathes right now.
I have an older Enco 9x20 which is essentially the same lathe. I've even used Grizzly parts on it. There are several members here who have one of the 9x20 variations including the G4000. Mine was bought last year sort of as a project so I haven't done a lot with it, but my initial impressions are that it is a decent small lathe, and certainly seems better put together than the Harbor Freight 7x10 which is the only 7" lathe I've seen up close. I'm sure the LMS is nicer as well.
From a space perspective you get a lot of lathe packed into 3 feet (well technically 37"). It is only a few inches longer than my Sherline lathe although much heavier. The 10x22 lathes are about a foot longer.
There is a fairly large community of 9x20 owners and tons of improvements online that people have done to make to these lathes better. Glass is half empty, they have room for improvement, glass is half full there is ready access to ways to make them better.
As they come I don't see any critical deficiencies other than size / weight and that will apply to most small lathes, the improvements are more in the nature of fine tuning to individual wants / needs. The basic design was taken from the Emco Compact 8, so it has been around for 40+ years.
A couple of things with the 9x20. It does not have a reverse or backgear. Few of these smaller import lathes do have a backgear, so it is not a particular failing of this design. I believe the Grizzly G0602 also lacks a reverse, so not losing anything there. There are plans for adding a reverse gear that does not seem terribly complex. At least one member here has made a back gear set up for his 9x20.
It is a belt drive so you change spindle speeds by moving the belts on the pulleys, most of the the 7" and 8" lathes (and some of the 10x22) are variable speed, so you just turn the knob to change speeds. Variable speed is nice, but I don't find belt changes to be a big deal.
The gear box is mostly to control the power feed speed. You can do a few different threads on a set of change gears, but you will still be dealing with change gears to do threading. This is true on any of the import lathes until you get up to the 12" size or $6000+ budget. Ability to get a full quick change gear box on a small lathe is one of the biggest advantages small vintage lathes have over the current batch.
The G4000 has a metric M39 threaded spindle which is basically unique to the 9x20. It would have been nice if they used the more common 1-1/2"x8 as there are a lot more used chucks out there using that thread.
The G0602 is a bigger heavier lathe, but it seems to have most of the same good and bad points as the G4000, the main advantage being a 25mm (1") spindle bore vs 20mm (0.78").