The
following article ran in Home Shop Machinist Magazine a few
years ago. I am still using the lathe and digital readout.
They have produced good work for years.
A Powerful Combination
By Steve Chastain
Product Review: Enco 12 x 36inch Lathe and Shooting Star Digital
Readout.
It was December of 92, I
had been reading HSM for about six months and decided I couldn’t
live another minute longer without a lathe. There was a problem.
I knew nothing about metal working equipment because my total
shop experience consisted of a few woodworking projects on
a Sears tablesaw. I had recently purchased an Enco woodworking
jointer for $239 and was very happy with the quality relative
to other jointers in that price range so I decided to look
at their metal working equipment. After several sleepless
nights I decided on an Enco 13 x 40 lathe. It was about $2400.
I arrived at the showroom in Tampa to find model 110-2078
(current model # AP110-2078); a 12 x 36 inch geared head lathe
on sale for just over $2000. The salesman easily talked me
into the 12-inch lathe. We loaded it into my truck and I drove
home. One of my friends delivers fork trucks for Caterpillar.
When he was making a call in my area he stopped by to unload
the lathe and put it in my garage. I now had a lathe. I didn’t
know how to turn it on, but I had one.
I uncrated the lathe to find it covered with protective grease.
The grease was easily removed with kerosene, a brush and a
rag. I set up the stand that comes with the lathe and used
an engine hoist borrowed from the local auto parts store to
set it on the stand. I carefully leveled the lathe and hooked
up the power cord. After studying the manual, I found the
“on” switch and turned it on. The lathe ran about
20 seconds and the breaker tripped. I carefully reviewed all
the wiring, however a few more tries got the same result.
I called Enco and they immediately sent a new “made
in USA” motor at no cost, no questions asked. They also
gave me a technical help number where the attendant walked
me through the wiring of the new motor. I quickly had the
new motor installed and the lathe up and running. There have
been no problems in the last nine years. “Made in USA”
motors are now shipped as standard equipment on Enco lathes.
I also installed a high quality drive belt.
The instruction manual is definitely Asian. You will find
lifting instructions, oil points and the on and off switch.
That is about it. If you need lathe instruction, go to Lindsay
publications and order “How to Run A Lathe 1942”
for $7.95. It covers all the basics. The lathe comes with
several accessories. They include a 3 jaw chuck, a four jaw
chuck, a 10-inch face plate, steady rest, follow rest, a drill
chuck, a 3 MT dead center, a 5MT to 3MT adapter for the headstock
spindle. It also has a threading dial, chip pan, metric change
gears, extra chuck jaws and a toolbox with various wrenches
and an oil can. A turret type toolpost is also standard equipment.
The lathe spindle is D1-4 so changing chucks, faceplates and
accessories is quick and easy. I really like the cam lok spindle.
While not being thousand dollar chucks they do work well and
repeatably chuck within .001-inch. After years of abuse, the
3 jaw is still chucks a ¾ diameter drill rod to .001
inch., OK… I did have to go clean the 9-year build up
of junk from the back of the chuck to get that reading. One
thing to note is the chuck is installed on the lathe but not
marked regarding the position. Mark the chuck and spindle
before removing the chuck. I occasionally use the steadyrest.
It does the job but is a little small. When I get the time
I am going to build a larger one with ball bearings.
The lathe has 18 speeds. Nine speeds are easily selected by
the gearshifts on the front of the headstock. Slipping the
drive belt to another pulley sets up the geared head to select
another nine speeds. The total range of speeds is 60 to 1550
RPM. Speed, feed and threading directions are clearly posted
on the front of the lathe so selection is easy. This is very
good for the beginner. The lead screw and feed drive direction
and selection are also on the front of the lathe and easily
used.
The lathe just has 36 inches between centers and this is the
absolute max for this lathe. It may be difficult to actually
mount and work a full 36 inches. I’ve never tried. The
tailstock is marked for 4 inches extension but only 3 inches
are useable, as it must be extended 1 inch for a drill chuck
adapter or center to properly fit. The compound rest is marked
plus and minus 45 degrees however it needs another pointer
notch set 90o out from the current one to easily adjust the
compound rest for the 29 ½ degrees used in screw cutting.
This notch is quickly and easily added with a small chisel
so it is a non-issue.
The lathe cuts 40 different inch threads (4 to 112 tpi) and
29 metric threads (.024 to 4.5mm.) The only thread I don’t
see is 11-½ tpi for 2 inch pipe.
The lathe has one nylon safety gear that will shred if you
happen to do something stupid like run the carriage into the
headstock. Early on I shredded one (for another reason) but
the nylon gear was wide enough to turn over and have enough
tooth area to continue working. A call to Enco got an immediate
replacement.
The stand is acceptable but a little light for the $200 you
will spend on it. If you have more money than time then get
it. It is easy to assemble and attach. If you have the time
you may want to build a heavy stand and save some money here.
You can always spend it on more tooling for your lathe…like
a rocker tool post and a quick-change tool post or live center
and a nice drill chuck.
Using the lathe is easy. It makes quick roughing cuts and
fine finishing cuts.
It may sound as if I am unhappy with the lathe. I am not.
It works well. Its problems are minor and quickly resolved.
You can buy a better lathe but you will spend several thousand
dollars more. For the money I don’t think you can find
a better deal. I am very happy with it and would buy it again.
Shooting Star Technology Digital Display. Wow!…What
a great deal! It works well and is $700 less than my Sargon
unit. OK, I’ll back up and start at the beginning.
I had purchased a vertical mill with a Sargon digital read
out. I had been using it for about five years when I decided
to order a digital readout for my lathe. I checked the prices
and was very disappointed to find that the digital readouts
cost almost as much as my lathe. I was not anxious to order
one. After reading the ads for Shooting Star Readouts for
a few years I thought…hmm, they were still in business
so they must be doing something right. They were less than
half the price of the other units I had been looking at. They
came with a 60-day money back guarantee and a 5-year warranty.
Being Christmas season again, I decided to order one. It arrived
by Federal Express a day or two later. I opened the box to
find a compact readout, a power supply, two scales with telephone
type connectors and a few small pieces of mounting hardware.
I was a little wary. How could something this small really
work? It had a money back guarantee, so I set it up.
The only tricky, time consuming or frustrating part of the
installation was mounting the scales. You have to custom fit
the hardware by trimming it in the lathe. It takes a few tries
to get the scales right so that they run without binding.
The Sargon has the scales mounted to a 1-inch by 42 inch section
of steel so the alignment is a little easier…maybe that
is where the extra $700 dollars goes. There is no real mounting
hardware for the actual readout display so you will have to
make up something. I made up a bar and some mounting hardware
that bolts to the headstock so that the readout is accessible.
I plugged it in and started comparing the digital readout
with my lathe dials. There were a few spots where they were
a thousandth or so off so I got a dial indicator and checked
it again. The readout appeared to be more accurate than the
scales on the lathe dials. I tried a few test cuts and measured
them with a micrometer. They were dead on.
Several years later those cuts are still dead on. I have completely
abandoned the use of the lathe scales because the readout
is so fast and easy to use. The addition of the readout really
improves the performance of the lathe. They are a very powerful
combination. My scrap rate is virtually nil and my production
speed has really increased.
When properly set up, the Enco lathe is good for the home
shop machinist. It is a great lathe with the addition of the
Shooting Star Digital Readout. There may be some that say
you should wait for some old iron to appear because it will
be better than that imported stuff. I and a few of my friends
have some of that old iron. They have spent a lot of time
and money getting it back into shape. When they get it finished
they will have a few nice pieces, however I have gotten years
of use out of my lathe and they are still working on theirs.
Anyway you look at it, I’ve got about $2100 in my lathe
and produced tens of thousands of dollars work with it over
the past nine years. Some of my friends are still putting
off getting a lathe because they are either waiting for a
once in a lifetime deal or just can’t part with the
money. Payback is over time so the sooner you get it, the
sooner you will get your money out of it. I can recommend
the Enco lathe and the Shooting Star readout for the small
shop. They are both affordable, easy to use and great to learn
on. They will produce good work year after year.
Follow up 2005:
Since the article originally ran I have logged a few hundred
more hours on the equipment and am still quite pleased with
the purchase. Since then I have used the “gap”
feature of the Enco lathe and turned a 15-inch diameter bell
housing . When removing the gap pay particular attention to
the rack gear that moves the carrage. I had to remove the
gear from the gap and remove a small burr to easily remove
the gap from the bed. When replacing the gap, you should tighten
it down in steps while using a dial indicator to check the
bed height. This allows you to get it right back into position.
Shooting Star Readout: My Sargon digital readout (DRO) uses
glass scales that are supposed to be more accurate than the
rack type scales used on the Shooting Star system. However
for a number of reasons, I prefer the rack of the Shooting
Star system. Glass scales are fragile and will break if the
are not perfectly lined up or pushed close the end of their
travel. For whatever reason, my glass scale broke and the
cost of replacement is nearly the cost of a new Shooting Star
system.
While the glass scales may be more accurate, my rack type
system works fine. I can cut a shaft to within .0002-inch
variation in diameter end to end on the Enco lathe with the
Shooting Star DRO. Nothing I do requires more precision than
that. While the glass scales may not be affected by temperature
as much as the metal rack system, the work-piece is also made
of metal and probably expanding as much as the rack so I don’t
see accuracy as so much of a problem here. On all of my future
equipment purchases I will use the Shooting Star DRO.
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