Logan/Powermatic 11x24 lathe
2 1/4" – 8 spindle w/ 1 3/8" hole thru spindle (takes 5C collets). New headstock bearings, new Poly-Vee belt. Back gears operation is smooth, quiet, and all teeth are in EC.
Thoroughly cleaned, gibs re-lapped, mostly disassembled and carefully painted metallic green with a top coat of clear polyurethane. It’s not Imron (not about to put my health at risk), but is reasonably durable and looks great.
A dial indicator on the bed shows 0.002" of wear along its length (it came from a school), but there are a number of dings on the bed (it came from a school). The 0.002” wear is more even than not over most of the bed (no headstock “dip”). Most used lathes have .010"-.030" of wear, so .002" is almost nothing.
Quick-change included, but one of the handles needs to be bored out for a new bearing insert—the handle shaft ovaled it out. Or you could try JBW first. I have enough of the gears to do basic threading needs (8tpi to 24tpi or so). I have a set of half-nuts, but they are almost worn through and either need replacing or the babbitt trick. It's not a hard repair; I'm just out of time and don't really need it, because...
leadscrew is powered by a 1/4 HP
DC motor, Dayton variable speed drive, and Boston Gear speed
feeds for turning, like a
Monarch. Smooth drive, loads of torque,
adjusts with the turn of a knob, and change speeds on the fly -- a
super-quick-change. Every lathe should have one of these,
cross-slide leadscrew fabricated using high-precision ACME rod
and a high-precision bronze nut, and a Martin gear. Backlash is
only 0.015" and
could probably be reduced even more w/ a thrust bearing next to the
Tailstock is from an 11” Logan (#2MT, more travel than the stock tailstock). Quill is smooth and tight. Live and dead centers, Jacobs chuck.
Brand new Bison 3 jaw 8” chuck (2 piece reversible jaws), smooth scroll and in perfect condition, with 8” Bison threaded backplate (new, unmodified). Faceplate. Whiton 10” 4 jaw chuck, jaws in EC, mounted. I like big chucks since I usually "run out of chuck" before running out of swing. (Yep, they fit fine, and the added weight is small compared to the cutting forces).
Phase II 100 series QCTP set w/ the usual toolholders, cutting bits/blade (most new), and 9” APT (USA) boring bar for carbide inserts.
for the main beams and 2” square for the rest.
Rough calcs show the 4x4
tubes have about 6x to 8x more
than the bed, to minimize chatter and ensure alignment.
For dampening, the
tubes can easily be filled w/ sand.
42”x22” and I made the spindle a little
higher than usual
to save the back, measures 46” CL to floor. The stand
is extremely stiff but not very heavy, so transport should not be
difficult. In fact, the whole lathe easily breaks down into
pieces; the heaviest single item is the bed at around 120 lbs.
See My Projects page for more
details on the process.
I’m guessing I’ve put about 500 hours into the lathe, so would like it to go to a good home.
The rest of the shop:
Torch w/ Tanks
Mother-lode of Endmills
~170 endmills in custom wood chest w/ 4 drawers. From the machine shop of a local factory that closed. Mostly USA: Putnam, DoAll, TRW. Huge variety, all sizes, full set of corner-rounding bits. Some freshly resharpened, most EC. Probably $2000+ new. $150
4x6 Metal Cutting Bandsaw
horizontal metal cutting bandsaw, ~older Sears model, made in Taiwan
China) and works great.
Bimetal blade, wax, hydraulic cylinder (unmounted), and stand w/