Hi All

Can anyone help shed some light on this problem?


Aussie link http://www.machineryhouse.com.au/Pro...tockCode=L183#
Hare & Forbes Lathe code=L183

China link
http://cnchinadragon.manufacturer.gl...he-Machine.htm
Shenzen CQ6230B

http://www.metalworking.com/dropbox/...230B_Lathe.JPG
dropbox link

Background Info
---------------------

Leadscrew = metric 3mm pitch

Change gears 1 Set: M=1.25 (pitch) Z=22T, 44T, 26T, 52T, 38T

Lathe: Shenzhen CQ6230B

FWIW the chinese manual that comes with the lathe is poor reading, sure that
are not designed to teach but they must convey a clear message/instuction
when referencing any information therein.


Down the left side of the lathe (headstock gearchange cover) there are 5
tables of information.

1. REVS/MM
2. REVS/INCH
3. THREADS METRIC PITCHES MM
4. THREADS IMPERIAL PITCHES 1/INCH
5. INDICATOR TABLE


Q1. In the top most table (revs/mm)
Under the column titled "position"
Third column from the left, there are two symbols (one demonstrating
horizontal, one demonstrating vertical)

horizontal ----^VW^---
vertical
|


|

What is their meaning (are they important, or can they be ignored)?


Q2. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left, there is the letter Z (directly underneath are
MII and MI)
Any clue as to what the letter Z means?
(I did find in the chinese manual that one of the change gears was referred
to as "Z=22T" as in a 22 teeth gear)

Are they trying to tell me that the 22 teeth gear is also known as the Z
gear?



Q3. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
First column from the left, (you may need to zoom in)

There is a small image on the table face where the image shows in part

48T (being on top)

(no in between gears)

Z ( being below it, is this referring to the Z gear ie: 22Teeth?)


Q4. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left,

If I wanted to produce a 24tpi thread, should I be selecting the levers A
and 3 with 48T on the top change gear and 22T gear on the bottom?

Thanks DazFNQ

What is their meaning (are they important, or can they be ignored)?
....
Are they trying to tell me that the 22 teeth gear is also known as the Z
gear?
....
Chinglish dictionaries are hard to find. I don't think you can get much help
from anybody.

If I wanted to produce a 24tpi thread, should I be selecting the levers A
and 3 with 48T on the top change gear and 22T gear on the bottom?

Sounds right, give it a try; see what thread lead you get.

Have fun learning to run your new toy.


FWIW, I have a SuperMax manual written in chinglish on a mchine I just got.
Using it to figure out the maintenance lube schedule and points to lube was
a REAL treat.

Karl

Ha It gets better, in the Hare & Forbes brochure it says theat the leadscrew
is metric, but another source of information for the same lathe says that it
is an imperial leadscrew.

Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

I'll just keep digging.



"DazFNQ" wrote in message
u...
Hi All

Can anyone help shed some light on this problem?


Aussie link http://www.machineryhouse.com.au/Pro...tockCode=L183#
Hare & Forbes Lathe code=L183

China link
http://cnchinadragon.manufacturer.gl...he-Machine.htm
Shenzen CQ6230B

http://www.metalworking.com/dropbox/...230B_Lathe.JPG
dropbox link

Background Info
---------------------

Leadscrew = metric 3mm pitch

Change gears 1 Set: M=1.25 (pitch) Z=22T, 44T, 26T, 52T, 38T

Lathe: Shenzhen CQ6230B

FWIW the chinese manual that comes with the lathe is poor reading, sure
that are not designed to teach but they must convey a clear
message/instuction when referencing any information therein.


Down the left side of the lathe (headstock gearchange cover) there are 5
tables of information.

1. REVS/MM
2. REVS/INCH
3. THREADS METRIC PITCHES MM
4. THREADS IMPERIAL PITCHES 1/INCH
5. INDICATOR TABLE


Q1. In the top most table (revs/mm)
Under the column titled "position"
Third column from the left, there are two symbols (one demonstrating
horizontal, one demonstrating vertical)

horizontal ----^VW^---
vertical
|


|

What is their meaning (are they important, or can they be ignored)?


Q2. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left, there is the letter Z (directly underneath
are MII and MI)
Any clue as to what the letter Z means?
(I did find in the chinese manual that one of the change gears was
referred to as "Z=22T" as in a 22 teeth gear)

Are they trying to tell me that the 22 teeth gear is also known as the Z
gear?



Q3. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
First column from the left, (you may need to zoom in)

There is a small image on the table face where the image shows in part

48T (being on top)

(no in between gears)

Z ( being below it, is this referring to the Z gear ie: 22Teeth?)


Q4. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left,

If I wanted to produce a 24tpi thread, should I be selecting the levers A
and 3 with 48T on the top change gear and 22T gear on the bottom?

Thanks DazFNQ

In article ,
"DazFNQ" wrote:

Ha It gets better, in the Hare & Forbes brochure it says theat the leadscrew
is metric, but another source of information for the same lathe says that it
is an imperial leadscrew.

Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

Can't be both. 8 tpi is (1/8)(25.4)= 3.175 mm pitch, not 3.000 mm pitch.

It's close enough that a thread pitch gage may have difficulty
distinguishing unless one takes the leadscrew off the lathe.

A better way to measure in place is with a dial indicator stuck to the
bed indicating horizontal travel of the carriage with half-nut engaged
while manually turning the leadscrew and counting turns.

Joe Gwinn

When you start cutting a thread make the first pass barely scratch the
work and check the pitch or modulus with a thread gauge.

"Joseph Gwinn" wrote in message
...
In article ,
"DazFNQ" wrote:

Ha It gets better, in the Hare & Forbes brochure it says theat the
leadscrew
is metric, but another source of information for the same lathe says that
it
is an imperial leadscrew.

Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

Can't be both. 8 tpi is (1/8)(25.4)= 3.175 mm pitch, not 3.000 mm pitch.

Thanks Joseph, it was late afternoon, little overcast (cloudy) and hard to
see.


It's close enough that a thread pitch gage may have difficulty
distinguishing unless one takes the leadscrew off the lathe.

Measuring a buttress thread with a "V form" thread gauge is slightly
imperfect.


Thanks once again DazFNQ

"Jim Wilkins" wrote in message
...
When you start cutting a thread make the first pass barely scratch the
work and check the pitch or modulus with a thread gauge.


I'll try that thanks Jim

DazFNQ

On 2008-06-16, DazFNQ wrote:
Hi All

Can anyone help shed some light on this problem?


Aussie link http://www.machineryhouse.com.au/Pro...tockCode=L183#
Hare & Forbes Lathe code=L183

China link
http://cnchinadragon.manufacturer.gl...he-Machine.htm
Shenzen CQ6230B

Probably blocked for me -- if it is truly in China. I've had
too many attacks from sites in China.

http://www.metalworking.com/dropbox/...230B_Lathe.JPG
dropbox link

Got that one.

Background Info
---------------------

Leadscrew = metric 3mm pitch

Change gears 1 Set: M=1.25 (pitch) Z=22T, 44T, 26T, 52T, 38T

Lathe: Shenzhen CQ6230B

FWIW the chinese manual that comes with the lathe is poor reading, sure that
are not designed to teach but they must convey a clear message/instuction
when referencing any information therein.


Down the left side of the lathe (headstock gearchange cover) there are 5
tables of information.

1. REVS/MM
2. REVS/INCH
3. THREADS METRIC PITCHES MM
4. THREADS IMPERIAL PITCHES 1/INCH
5. INDICATOR TABLE


Q1. In the top most table (revs/mm)
Under the column titled "position"
Third column from the left, there are two symbols (one demonstrating
horizontal, one demonstrating vertical)

horizontal ----^VW^---
vertical
|


|

What is their meaning (are they important, or can they be ignored)?

Typically, you get a different feed rate along the bed (shown as
horizontal), and across the bed -- along the cross slide (shown as
vertical). The precise values probably don't matter unless you are
aiming for a particular surface finish, but the approximate range do in
determining how much metal you remove per revolution (and how hot the
chips will be. :-)

Q2. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left, there is the letter Z (directly underneath are
MII and MI)
Any clue as to what the letter Z means?
(I did find in the chinese manual that one of the change gears was referred
to as "Z=22T" as in a 22 teeth gear)

Are they trying to tell me that the 22 teeth gear is also known as the Z
gear?

I think that they are calling the gear on the leadscrew (or
feeding into the quick change gearing) 'Z' for the "Z-axis" -- the
length of the carriage. The cross feed is usually the "Y-axis".

Q3. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
First column from the left, (you may need to zoom in)

There is a small image on the table face where the image shows in part

48T (being on top)

(no in between gears)

Z ( being below it, is this referring to the Z gear ie: 22Teeth?)

I think that Z is whatever is fed into the internal gearbox. A
change of this will change the selection of pitches.


Q4. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left,

If I wanted to produce a 24tpi thread, should I be selecting the levers A
and 3 with 48T on the top change gear and 22T gear on the bottom?

Also the "I --- II" knob in the "II" positions. Don't use the
levers, use the knobs at the bottom. I think that the levers at the top
are for selecting RPM of the spindle, not threading details. And the
smaller one with the lever pointing down selects CW or CCW spindle
rotation. I think that the "M --- S" knob on the bottom panel may be
for selecting right-hand or left-hand threads by reversing the threading
leadscrew .

But select what you think is right, and try it -- with a very
light cut, and a thread pitch gauge in hand. Ideally -- paint the
workpiece with layout dye, then make a very shallow cut, and compare
what you got with the proper leaf on the thread pitch gauge to make sure
you get what you should.

Note that some parts of the tables are still difficult to read,
mostly thanks to the information thrown away by the lossy compression
used by jpeg. In particular, the drawings to the left of "Threads
Metric" are pretty well blurred. A separate close-up shot of that one
table would help.

I'm not at all sure what the "Indicator table" is -- perhaps the
dial usually present to guide when to engage the threading half-nuts.
Normally, these work only on metric, or only on imperial threads,
depending on the machine. They may have switchable threading dials on
the carriage (which isn't shown in your photo).

Looks like a fun machine once you get use to it. But it doesnt'
cut one thread which I need -- 27 TPI.

Good Luck,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

On 2008-06-16, DazFNQ wrote:
Ha It gets better, in the Hare & Forbes brochure it says theat the leadscrew
is metric, but another source of information for the same lathe says that it
is an imperial leadscrew.

Looking at the threading charts, it looks as though it is using
transposing gears (typically 100 tooth plus 127 tooth) to drive the
leadscrew for metric threads, but direct (just an idler, which is likely
to be the larger of the pair of transposing gears) for imperial
threading, which suggests that it is an imperial leadscrew, not a metric
one.

Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

Interesting. Do you have the machine directly available? (I
guess so, given the photos). Why not cheat and try *measuring* the
leadscrew's pitch? Of course -- it might be possible that it has two
leadscrews, one of each pitch.

And normally for Imperial that would be an Acme thread, not a
buttress thread. IIRC, the included angle of the buttress is 30
degrees, and the Acme is 29 degrees, so that part would be pretty
difficult to tell without really precise measuring tools. :-)

I'll just keep digging.

And *confirm* things by *measuring* what you can get to. No
matter what lies the "manual" may tell, you can tell which is the truth
by actual measurement.

Good luck,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

DoN thanks for assistance todate, got me working now.

DazFNQ

----- Original Message -----
From: "Joseph Gwinn"
Newsgroups: rec.crafts.metalworking
Sent: Monday, June 16, 2008 11:25 PM
Subject: Shenzhen Lathe problem - Hare & Forbes AL-335


In article ,
"DazFNQ" wrote:

Ha It gets better, in the Hare & Forbes brochure it says theat the
leadscrew
is metric, but another source of information for the same lathe says that
it
is an imperial leadscrew.

Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

Can't be both. 8 tpi is (1/8)(25.4)= 3.175 mm pitch, not 3.000 mm pitch.

It's close enough that a thread pitch gage may have difficulty
distinguishing unless one takes the leadscrew off the lathe.

A better way to measure in place is with a dial indicator stuck to the
bed indicating horizontal travel of the carriage with half-nut engaged
while manually turning the leadscrew and counting turns.

Joe thanks for the tip.

After measuring the carriage travel based on leadscrew revolutions

Leadscrew Revs Dial Indicator Gauge
1 0.125
2 0.250
3 0.375
4 0.500

So you were correct, thanks. More importantly these bloody chinese
documents really are crap as they go on to say that the leadscrew pitch
is 3mm 8tpi.

Thanks DazFNQ

"DoN. Nichols" wrote in message
...
On 2008-06-16, DazFNQ wrote:
Ha It gets better, in the Hare & Forbes brochure it says theat the
leadscrew
is metric, but another source of information for the same lathe says that
it
is an imperial leadscrew.

Looking at the threading charts, it looks as though it is using
transposing gears (typically 100 tooth plus 127 tooth) to drive the
leadscrew for metric threads, but direct (just an idler, which is likely
to be the larger of the pair of transposing gears) for imperial
threading, which suggests that it is an imperial leadscrew, not a metric
one.

Checkout the image of the standard gear setup:

http://www.metalworking.com/dropbox/...dard_Gears.JPG
dropbox link



Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

This is now not correct, calcs originally based on the chinese manual:

After measuring the carriage travel based on leadscrew revolutions

Leadscrew Revs Dial Indicator Gauge
1 0.125
2 0.250
3 0.375
4 0.500



Interesting. Do you have the machine directly available? (I
guess so, given the photos). Why not cheat and try *measuring* the
leadscrew's pitch? Of course -- it might be possible that it has two
leadscrews, one of each pitch.


Yep, with a Unified 60 degree pitch gauge measuring over an acme
square thread can be problematic but does appear to be 8TPI as nothing
else comes remotely close.


And normally for Imperial that would be an Acme thread, not a
buttress thread. IIRC, the included angle of the buttress is 30
degrees, and the Acme is 29 degrees, so that part would be pretty
difficult to tell without really precise measuring tools. :-)

I'll just keep digging.

And *confirm* things by *measuring* what you can get to. No
matter what lies the "manual" may tell, you can tell which is the truth
by actual measurement.

Your absolutely right, those chinglish manuals are crap.

Therefore, based on my original message snipped

Leadscrew = metric 3.125 pitch

Change gears 1 Set: M=1.25 (pitch) Z=22T, 44T, 26T, 52T, 38T
(Where it appears that Z = Z axis )

Simple gear train of
Driver 24T
Intermediate 127T
Driven 48T

Im not sure as to which calc method from my reference book to
choose here. Is there a resource on the net that can answer these
questions?

Thanks DazFNQ

In article ,
"DazFNQ" wrote:

----- Original Message -----
From: "Joseph Gwinn"
Newsgroups: rec.crafts.metalworking
Sent: Monday, June 16, 2008 11:25 PM
Subject: Shenzhen Lathe problem - Hare & Forbes AL-335


In article ,
"DazFNQ" wrote:

Ha It gets better, in the Hare & Forbes brochure it says theat the
leadscrew
is metric, but another source of information for the same lathe says that
it
is an imperial leadscrew.

Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

Can't be both. 8 tpi is (1/8)(25.4)= 3.175 mm pitch, not 3.000 mm pitch.

It's close enough that a thread pitch gage may have difficulty
distinguishing unless one takes the leadscrew off the lathe.

A better way to measure in place is with a dial indicator stuck to the
bed indicating horizontal travel of the carriage with half-nut engaged
while manually turning the leadscrew and counting turns.

Joe thanks for the tip.

After measuring the carriage travel based on leadscrew revolutions

Leadscrew Revs Dial Indicator Gauge
1 0.125
2 0.250
3 0.375
4 0.500

So you were correct, thanks.

Bingo: exactly 8 tpi. Welcome.


More importantly these bloody chinese
documents really are crap as they go on to say that the leadscrew pitch
is 3mm 8tpi.

I bet the Chinese-language manual is no better. Attention to detail is
language-independent, and arabic numbers are used in both languages.

I would make a xerox working copy of the manual, and start to annotate
the copy in pencil. The reason to do this with pencil on a copy is that
not all discoveries will hold up, so one needs to be able to edit.
After a year, things should have stabilized, and one can use ink in
confidence.

Joe Gwinn

On 2008-06-17, DazFNQ djimpsfnq wrote:

"DoN. Nichols" wrote in message
...
On 2008-06-16, DazFNQ wrote:

[ ... ]

Checkout the image of the standard gear setup:

http://www.metalworking.com/dropbox/...dard_Gears.JPG
dropbox link

O.K. The 127 tooth gear serving just as an idler at the moment.

[ ... ]

Have discovered that its pitch is 3mm and it has 8tpi (butress thread)

This is now not correct, calcs originally based on the chinese manual:

After measuring the carriage travel based on leadscrew revolutions

Leadscrew Revs Dial Indicator Gauge
1 0.125
2 0.250
3 0.375
4 0.500

So -- precisely 8 TPI.

Interesting. Do you have the machine directly available? (I
guess so, given the photos). Why not cheat and try *measuring* the
leadscrew's pitch? Of course -- it might be possible that it has two
leadscrews, one of each pitch.


Yep, with a Unified 60 degree pitch gauge measuring over an acme
square thread can be problematic but does appear to be 8TPI as nothing
else comes remotely close.

O.K. And that is confirmed by your measurements vs leadscrew
rotation.

And normally for Imperial that would be an Acme thread, not a
buttress thread. IIRC, the included angle of the buttress is 30
degrees, and the Acme is 29 degrees, so that part would be pretty
difficult to tell without really precise measuring tools. :-)

I'll just keep digging.

And *confirm* things by *measuring* what you can get to. No
matter what lies the "manual" may tell, you can tell which is the truth
by actual measurement.

Your absolutely right, those chinglish manuals are crap.

Therefore, based on my original message snipped

Leadscrew = metric 3.125 pitch

Nope -- Leadscrew is imperial -- 8 TPI -- which converts to
3.175mm metric pitch.

Change gears 1 Set: M=1.25 (pitch) Z=22T, 44T, 26T, 52T, 38T
(Where it appears that Z = Z axis )

Right.

Simple gear train of
Driver 24T
Intermediate 127T
Driven 48T

Im not sure as to which calc method from my reference book to
choose here. Is there a resource on the net that can answer these
questions?

Well ... first off, you can ignore the 127T idler, because both
gears mesh with it. You could just as well use the 100T as an idler,
except that it makes things more difficult to change at need, since the
127 tooth one would overhang the 100 tooth one. The only thing the
idler does -- other than space the other gears apart a bit more -- is to
assure that the driver and driven rotate in the same direction.

So -- for 2 revolutions of the spindle (and driver), you get one
revolution of the driven (and input to the geartrain inside the
headstock).

There is someone who has a program on the net -- a regular here.
I tend to not remember the URL because the programs are compiled for
Windows (which I don't use), and use enough private libraries to make it
difficult to compile them on a unix box.

But IIRC, his program is set up for a geartrain from the spindle
direct to the leadscrew, without taking into account the gearbox in the
headstock. With that, or an external quick-change gearbox, you don't
really need the program most of the time.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

Hi All

Have uploaded a text file (best viewed in notepad wordwrap off) regarding
the Lathe tables,
and todate can confirm now that the gearing supplied performs screwcutting
correct.

see http://www.metalworking.com/dropbox/...atheupload.txt

Sorry for not replying sooner, I had to do some work, yuk!

Thanks to all for their help


"DoN. Nichols" wrote in message
...
On 2008-06-16, DazFNQ wrote:
Hi All

Can anyone help shed some light on this problem?


Aussie link http://www.machineryhouse.com.au/Pro...tockCode=L183#
Hare & Forbes Lathe code=L183

China link
http://cnchinadragon.manufacturer.gl...he-Machine.htm
Shenzen CQ6230B

Probably blocked for me -- if it is truly in China. I've had
too many attacks from sites in China.

http://www.metalworking.com/dropbox/...230B_Lathe.JPG
dropbox link

Got that one.

Background Info
---------------------

Leadscrew = metric 3mm pitch

Change gears 1 Set: M=1.25 (pitch) Z=22T, 44T, 26T, 52T, 38T

Lathe: Shenzhen CQ6230B

FWIW the chinese manual that comes with the lathe is poor reading, sure
that
are not designed to teach but they must convey a clear message/instuction
when referencing any information therein.


Down the left side of the lathe (headstock gearchange cover) there are 5
tables of information.

1. REVS/MM
2. REVS/INCH
3. THREADS METRIC PITCHES MM
4. THREADS IMPERIAL PITCHES 1/INCH
5. INDICATOR TABLE


Q1. In the top most table (revs/mm)
Under the column titled "position"
Third column from the left, there are two symbols (one demonstrating
horizontal, one demonstrating vertical)

horizontal ----^VW^---
vertical
|


|

What is their meaning (are they important, or can they be ignored)?

Typically, you get a different feed rate along the bed (shown as
horizontal), and across the bed -- along the cross slide (shown as
vertical). The precise values probably don't matter unless you are
aiming for a particular surface finish, but the approximate range do in
determining how much metal you remove per revolution (and how hot the
chips will be. :-)

Q2. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left, there is the letter Z (directly underneath
are
MII and MI)
Any clue as to what the letter Z means?
(I did find in the chinese manual that one of the change gears was
referred
to as "Z=22T" as in a 22 teeth gear)

Are they trying to tell me that the 22 teeth gear is also known as the Z
gear?

I think that they are calling the gear on the leadscrew (or
feeding into the quick change gearing) 'Z' for the "Z-axis" -- the
length of the carriage. The cross feed is usually the "Y-axis".

Q3. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
First column from the left, (you may need to zoom in)

There is a small image on the table face where the image shows in part

48T (being on top)

(no in between gears)

Z ( being below it, is this referring to the Z gear ie: 22Teeth?)

I think that Z is whatever is fed into the internal gearbox. A
change of this will change the selection of pitches.


Q4. In the third table (THREADS IMPERIAL PITCHES 1/inch)
Under the column titled "position"
Second column from the left,

If I wanted to produce a 24tpi thread, should I be selecting the levers
A
and 3 with 48T on the top change gear and 22T gear on the bottom?

Also the "I --- II" knob in the "II" positions. Don't use the
levers, use the knobs at the bottom. I think that the levers at the top
are for selecting RPM of the spindle, not threading details. And the
smaller one with the lever pointing down selects CW or CCW spindle
rotation. I think that the "M --- S" knob on the bottom panel may be
for selecting right-hand or left-hand threads by reversing the threading
leadscrew .

But select what you think is right, and try it -- with a very
light cut, and a thread pitch gauge in hand. Ideally -- paint the
workpiece with layout dye, then make a very shallow cut, and compare
what you got with the proper leaf on the thread pitch gauge to make sure
you get what you should.

Note that some parts of the tables are still difficult to read,
mostly thanks to the information thrown away by the lossy compression
used by jpeg. In particular, the drawings to the left of "Threads
Metric" are pretty well blurred. A separate close-up shot of that one
table would help.

I'm not at all sure what the "Indicator table" is -- perhaps the
dial usually present to guide when to engage the threading half-nuts.
Normally, these work only on metric, or only on imperial threads,
depending on the machine. They may have switchable threading dials on
the carriage (which isn't shown in your photo).

Looks like a fun machine once you get use to it. But it doesnt'
cut one thread which I need -- 27 TPI.

Good Luck,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

On Mon, 16 Jun 2008 06:29:41 -0500, "Karl Townsend"
wrote:


FWIW, I have a SuperMax manual written in chinglish on a mchine I just got.
Using it to figure out the maintenance lube schedule and points to lube was
a REAL treat.

Does you Supermax have Turcited rectangular ways? If it does, what's
an appropriate bribe for a copy of the instructions on adjusting the
gibs? Not how to make the adjustments, but how to tell when they're
properly adjusted. The combination of 3(?) gibs per axis (as opposed
to one gib for dovetail ways), and the low coefficient of friction of
the Turcite, makes it difficult to tell the difference between too
tight and too loose.

--
Ned Simmons