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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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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 |
#2
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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 |
#3
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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? |
#4
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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 |
#5
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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. |
#6
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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 |
#7
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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 |
#8
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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 |
#9
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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 |
#10
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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 |
#11
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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 |
#12
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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. |
#13
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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 |
#14
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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? |
#15
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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 |
#16
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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 |
#17
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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. |
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