The mill has homing switches on all axes
 

I wired all limit switches and verified behavior of every limit switch
and every estop button.

Now both estop buttons work. Also all five limit switches work.

I have also discovered something nice: the mill actually has separate
home switches on all axis.

However, the schematic that I have, has no reference to those, it may
be an extra option on my mill that is not reflected in standard
schematic.

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

i

The mill has homing switches on all axes
 

On Mon, 19 Jul 2010 23:23:29 -0500, Ignoramus21191
wrote:

I wired all limit switches and verified behavior of every limit switch
and every estop button.

Now both estop buttons work. Also all five limit switches work.

I have also discovered something nice: the mill actually has separate
home switches on all axis.

However, the schematic that I have, has no reference to those, it may
be an extra option on my mill that is not reflected in standard
schematic.

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

i

Hook them up. You will ultimately be glad you did. Trust me.

Gunner, Machine tool service tech


One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

The mill has homing switches on all axes
 

On Jul 20, 12:23*am, Ignoramus21191 ignoramus21...@NOSPAM.
21191.invalid wrote:
I wired all limit switches and verified behavior of every limit switch
and every estop button.

Now both estop buttons work. Also all five limit switches work.

I have also discovered something nice: the mill actually has separate
home switches on all axis.

However, the schematic that I have, has no reference to those, it may
be an extra option on my mill that is not reflected in standard
schematic.

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

i

After all this trouble to "do things right," why in the world WOULDN'T
you want to hook them up?

The mill has homing switches on all axes
 

On 2010-07-20, rangerssuck wrote:
On Jul 20, 12:23?am, Ignoramus21191 ignoramus21...@NOSPAM.
21191.invalid wrote:
I wired all limit switches and verified behavior of every limit switch
and every estop button.

Now both estop buttons work. Also all five limit switches work.

I have also discovered something nice: the mill actually has separate
home switches on all axis.

However, the schematic that I have, has no reference to those, it may
be an extra option on my mill that is not reflected in standard
schematic.

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

i

After all this trouble to "do things right," why in the world WOULDN'T
you want to hook them up?

I would, but may be not right away.

Even finding out what are the wire numbers is a pain.

For some reason, at least one of them (Z axis), the only one I looked
at, has three wires.

i

The mill has homing switches on all axes
 

Ignoramus23878 wrote:

On 2010-07-20, rangerssuck wrote:
On Jul 20, 12:23?am, Ignoramus21191 ignoramus21...@NOSPAM.
21191.invalid wrote:
I wired all limit switches and verified behavior of every limit switch
and every estop button.

Now both estop buttons work. Also all five limit switches work.

I have also discovered something nice: the mill actually has separate
home switches on all axis.

However, the schematic that I have, has no reference to those, it may
be an extra option on my mill that is not reflected in standard
schematic.

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

i

After all this trouble to "do things right," why in the world WOULDN'T
you want to hook them up?

I would, but may be not right away.

Even finding out what are the wire numbers is a pain.

Your machine isn't that big, it shouldn't be that difficult to trace
three sets of wires. Pull the cover on the home switch, clip one lead
from your multimeter to one of the switch wires and then probe the
various disconnected wires in the control cabinet to find the match.


For some reason, at least one of them (Z axis), the only one I looked
at, has three wires.

Running all three wires back to the control cabinet is a good thing, it
gives you the option of using either an NC or an NO configuration.
Connect all the wires from each home switch to your nice DIN terminal
blocks and just connect the terminals you're actually going to use on
through to your I/O card.

The mill has homing switches on all axes
 

On 2010-07-20, Pete C. wrote:

Ignoramus23878 wrote:

On 2010-07-20, rangerssuck wrote:
On Jul 20, 12:23?am, Ignoramus21191 ignoramus21...@NOSPAM.
21191.invalid wrote:
I wired all limit switches and verified behavior of every limit switch
and every estop button.

Now both estop buttons work. Also all five limit switches work.

I have also discovered something nice: the mill actually has separate
home switches on all axis.

However, the schematic that I have, has no reference to those, it may
be an extra option on my mill that is not reflected in standard
schematic.

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

i

After all this trouble to "do things right," why in the world WOULDN'T
you want to hook them up?

I would, but may be not right away.

Even finding out what are the wire numbers is a pain.

Your machine isn't that big, it shouldn't be that difficult to trace
three sets of wires. Pull the cover on the home switch, clip one lead
from your multimeter to one of the switch wires and then probe the
various disconnected wires in the control cabinet to find the match.


For some reason, at least one of them (Z axis), the only one I looked
at, has three wires.

Running all three wires back to the control cabinet is a good thing, it
gives you the option of using either an NC or an NO configuration.
Connect all the wires from each home switch to your nice DIN terminal
blocks and just connect the terminals you're actually going to use on
through to your I/O card.

Maybe next month I will do it. I agree with you. It will home itself
on all axes simultaneously, and rapidly, it is really fun. But for now
I want to get the basic motion and safeties right.

The plan for tonight, is the Z axis!

i

The mill has homing switches on all axes
 

On Tue, 20 Jul 2010 08:18:16 -0500, "Pete C."
wrote:


Even finding out what are the wire numbers is a pain.

Your machine isn't that big, it shouldn't be that difficult to trace
three sets of wires. Pull the cover on the home switch, clip one lead
from your multimeter to one of the switch wires and then probe the
various disconnected wires in the control cabinet to find the match.


You guys dont have one of these, or similar????

Everybody should have one.

Gunner, with a set in each truck and spares


One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

The mill has homing switches on all axes
 

On Tue, 20 Jul 2010 07:42:18 -0700, Gunner Asch
wrote:

On Tue, 20 Jul 2010 08:18:16 -0500, "Pete C."
wrote:


Even finding out what are the wire numbers is a pain.

Your machine isn't that big, it shouldn't be that difficult to trace
three sets of wires. Pull the cover on the home switch, clip one lead
from your multimeter to one of the switch wires and then probe the
various disconnected wires in the control cabinet to find the match.


http://www.datacomtools.com/catalog/cableloc-tempo.html

Whoops....sorry


You guys dont have one of these, or similar????

Everybody should have one.

Gunner, with a set in each truck and spares


One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

The mill has homing switches on all axes
 

On 2010-07-20, Gunner Asch wrote:
On Tue, 20 Jul 2010 07:42:18 -0700, Gunner Asch
wrote:

On Tue, 20 Jul 2010 08:18:16 -0500, "Pete C."
wrote:


Even finding out what are the wire numbers is a pain.

Your machine isn't that big, it shouldn't be that difficult to trace
three sets of wires. Pull the cover on the home switch, clip one lead
from your multimeter to one of the switch wires and then probe the
various disconnected wires in the control cabinet to find the match.


http://www.datacomtools.com/catalog/cableloc-tempo.html

which one of them would you recommend?

i

Whoops....sorry


You guys dont have one of these, or similar????

Everybody should have one.

Gunner, with a set in each truck and spares


One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

The mill has homing switches on all axes
 

I just use a cheap logic probe like this:
http://www.dealextreme.com/details.d...117~r.19277804

For TTL (5Volt) and CMOS (12 volt) compture signals

and a cheap multimeter available at any big box tool store

Karl

The mill has homing switches on all axes
 

On Tue, 20 Jul 2010 10:42:01 -0500, Ignoramus23878
wrote:

On 2010-07-20, Gunner Asch wrote:
On Tue, 20 Jul 2010 07:42:18 -0700, Gunner Asch
wrote:

On Tue, 20 Jul 2010 08:18:16 -0500, "Pete C."
wrote:


Even finding out what are the wire numbers is a pain.

Your machine isn't that big, it shouldn't be that difficult to trace
three sets of wires. Pull the cover on the home switch, clip one lead
from your multimeter to one of the switch wires and then probe the
various disconnected wires in the control cabinet to find the match.


http://www.datacomtools.com/catalog/cableloc-tempo.html

which one of them would you recommend?

http://cgi.ebay.com/Telephone-Phone-...-/250669027374
http://cgi.ebay.com/NETWORK-PHONE-CA...-/380168802211
http://cgi.ebay.com/Cable-Wire-Phone...-/380237923601

Construction isnt rocket science. Datacom stuff is good..probably the
best for a working phone/data guy...but thats not what you need.

Its simple stuff and there isnt any reason for them to be selling for
that much. The obvious chinese stuff works just as well.
For 1/3rd the cost.

Gunner


i

Whoops....sorry


You guys dont have one of these, or similar????

Everybody should have one.

Gunner, with a set in each truck and spares


One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

One could not be a successful Leftwinger without realizing that,
in contrast to the popular conception supported by newspapers
and mothers of Leftwingers, a goodly number of Leftwingers are
not only narrow-minded and dull, but also just stupid.
Gunner Asch

The mill has homing switches on all axes
 

Gunner Asch on Tue, 20 Jul 2010 04:48:34 -0700
typed in rec.crafts.metalworking the following:

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

i

Hook them up. You will ultimately be glad you did. Trust me.

Oh yeah.

If for no other reason than to dial in the table. (In my notes
from a previous job, are the step by step procedure to power up and
initialize an Arrow mill, which includes the setting the machine zero
in all axis; without which, you're just guessing at locations.)

Gunner, Machine tool service tech

pyotr, machine tool user.
--
pyotr
Go not to the Net for answers, for it will tell you Yes and no. And
you are a bloody fool, only an ignorant cretin would even ask the
question, forty two, 47, the second door, and how many blonde lawyers
does it take to change a lightbulb.

The mill has homing switches on all axes
 

Ignoramus21191 wrote:

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

What is your definition of 'rapid'?

Next thing, when you hit the home switch, you want the once per rev marker pulse to be as
close to 180 degrees away from switch closure/opening depending as possible. Mechanical
switches are not very precise. If you set things up where the once per rev marker, I'll
call it the Z marker since that is what I'm used to is very close to the uncertanty zone
of a micro switch, you can have a axis that is off one pitch at random times.

Wes

--
"Additionally as a security officer, I carry a gun to protect
government officials but my life isn't worth protecting at home
in their eyes." Dick Anthony Heller

The mill has homing switches on all axes
 

On 2010-07-20, Wes wrote:
Ignoramus21191 wrote:

I understand that with homing switches, my mill could very rapidly home
itself in all three dimensions at once. Which is a plus. At the same
time, it is not an absolute necessity.

What is your definition of 'rapid'?

Max speed? Just guessing?

Next thing, when you hit the home switch, you want the once per rev
marker pulse to be as close to 180 degrees away from switch
closure/opening depending as possible. Mechanical switches are not
very precise. If you set things up where the once per rev marker,
I'll call it the Z marker since that is what I'm used to is very
close to the uncertanty zone of a micro switch, you can have a axis
that is off one pitch at random times.

I think that missing it by 2.5mm is a bit of a stretch.

So realistically, could I home at 60 IPM?

The mill has homing switches on all axes
 

So realistically, could I home at 60 IPM?

For stage 1, no problem. Assuming EMC rapids to the home switch then backs
off at a lower speed. IIRC, my rapid is 100 ipm, back off at 5 ipm, find
index marker at .5 ipm. I nearly always "park" the machine on home at
shutdown so homing takes maybe 15 seconds at startup. I also save part home
as the back left corner of the vice - one less step to do toward making
chips. You can be clamping your part in the vice as the machine finishes
homing. or you can be typing in your gcode. I hate to wait on machines

Karl

The mill has homing switches on all axes
 

On 2010-07-21, Karl Townsend wrote:

So realistically, could I home at 60 IPM?

For stage 1, no problem. Assuming EMC rapids to the home switch then backs
off at a lower speed. IIRC, my rapid is 100 ipm, back off at 5 ipm, find
index marker at .5 ipm. I nearly always "park" the machine on home at
shutdown so homing takes maybe 15 seconds at startup. I also save part home
as the back left corner of the vice - one less step to do toward making
chips. You can be clamping your part in the vice as the machine finishes
homing. or you can be typing in your gcode. I hate to wait on machines

Karl, would anything change in your reasoning, if I used a limit
switch to home?

i

The mill has homing switches on all axes
 

"Ignoramus23878" wrote in message
...
On 2010-07-21, Karl Townsend wrote:

So realistically, could I home at 60 IPM?

For stage 1, no problem. Assuming EMC rapids to the home switch then
backs
off at a lower speed. IIRC, my rapid is 100 ipm, back off at 5 ipm, find
index marker at .5 ipm. I nearly always "park" the machine on home at
shutdown so homing takes maybe 15 seconds at startup. I also save part
home
as the back left corner of the vice - one less step to do toward making
chips. You can be clamping your part in the vice as the machine finishes
homing. or you can be typing in your gcode. I hate to wait on machines

Karl, would anything change in your reasoning, if I used a limit
switch to home?

i

Galil has a built in home routine for home switches that is really
optimized. I did a custom home rountine off the limits for a fella, I must
say it was slow and clumsy by comparison. He would have been WAY better off
to install the home switches. But it does work.

Anyway, I can't answer for EMC.