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General Electronics Discussion | Forum profile
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Forum profile page for General Electronics Discussion on http://www.cnczone.com.
This report page is the aggregated overview from a single forum: General Electronics Discussion, located on the Message Board at http://www.cnczone.com.
This forum profile page summarizes the general forum statistics such as: Users Activity, Forum Activity, and Top Authors, which are reported in either a table or graph below for a given reporting time period.
Additional forum profile information for "General Electronics Discussion" on the Message Board at http://www.cnczone.com is also shown in the following ways:
1) Latest Active Threads
2) Hot Threads for Last Week
Warning: These statistics are generated using 'best efforts' and can experience delays and reporting errors at times. Please note that such statistics do not constitute a forum's popularity and/or exact posting volumes at any given reporting period.
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Posting activity on General Electronics Discussion:
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Week
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3 Months
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Threads:
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22
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80
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282
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Post:
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57
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206
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803
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General Electronics Discussion Posting activity graph:
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Top authors during last week:
user's latest post:
Two stepper motors on one...
Published (2009-11-22 19:33:00)
I have a pair hooked up and find myself fooling with them every now and again. It's like magic!
user's latest post:
Real power supply requirements
Published (2009-11-26 18:02:00)
My power supply arrived today! I'll tell you how it works as soon as I have the time to install it.
user's latest post:
ohmic sensing
Published (2009-11-20 13:21:00)
Thanks for all your help Jim - much clearer to me now. I'll have a think and a chew...
user's latest post:
ohmic sensing
Published (2009-11-20 12:45:00)
I prefer using the ohmic contact.....but a floating head and switch works almost as well for accuracy..if you have minimal hysteresis in the switch......and works better on rusty painted surfaces. Jim
user's latest post:
Two stepper motors on one...
Published (2009-11-22 19:27:00)
Thats pretty cool I tried it with a couple of motors and it works good ! That would be useful for remotely adjusting something like a mirror or camera without any complicated contoller or power needed. Also maybe a stepper could be used as a MPG with a decoder circuit .... Hmm
user's latest post:
Real power supply requirements
Published (2009-11-23 20:22:00)
If your drives are full current all the time, you need a power supply of the rated current. Geckos (and some others) have idle current reduction when they are not moving. When they are moving at a decent speed, the current drops due to the inductance of the motor. So they are at reduced current at standstill and when moving quickly, which is probably most of the time on a CNC machine. I prefer to use an oversized power supply as it should...
user's latest post:
CPLD Tutorial - Page 19 -...
Published (2009-11-25 16:14:00)
NC Thanks for the pictures - clever. Just before your motor stalls out or skips steps is where you take your reading at - correct? I will make up something similar when I get back to it.
pfred2 pfred2 is offline
2
user's latest post:
Two stepper motors on one...
Published (2009-11-22 19:33:00)
I have a pair hooked up and find myself fooling with them every now and again. It's like magic!
user's latest post:
CPLD Tutorial - Page 18 -...
Published (2009-11-25 03:39:00)
NC, others: About mid-band resonance suppression: I feel badly about this because I'm painted into a corner by it. I have even had people PMing me about how it's done and some downright insisting I should cough it up for the good of everyone. It is in my opinion absolutely vital for a good open-loop step motor drive but I cannot say anything about it because it would give away the one important thing our drives have over others. In a...
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Latest active threads on General Electronics Discussion::
Started 1 year, 6 months ago (2008-05-30 13:32:00)
by tajord
I have these three chips lying around and was wondering if anyone has any driver plans/schematics to assist here, I've been looking for a while now and still haven't came across any, i heard they chop current (don't know if i used that term correctly), can someone help or point me a direction relating to them?
Attached Thumbnails...
Started 15 hours, 17 minutes ago (2009-11-29 09:45:00)
by vger
I would be tempted to use the driver boards in the machine (if they are seperate) and skip the Yamaha robot language. Does the existing machine use stepper motors or servo motors? Are the drivers for the motors seperate from the controller board? Obviously you will need a third axis driver and motor, and sticking with the same style (stepper or servo) may make things easier. The one pick and ...
Started 1 week, 4 days ago (2009-11-18 11:25:00)
by beliefdrive
you need two driver, for two stepper motor, can't conect paraller
Started 22 hours, 16 minutes ago (2009-11-29 02:46:00)
by TOTALLYRC
Originally Posted by RedLabel
I opened this one on the software section but I think it suits here better(the forum is very big). Here it is...
In short I'm asking if a pci add on parallel port card works with the boards like xylotex or not...
Started 2 days, 8 hours ago (2009-11-27 16:52:00)
by justCNCit justCNCit is offline
Hey. My Xylotex seems to be malfunctioning (primary Y axis no longer responds to the directional pin control, and takes every step in the same direction)
Been looking at the G540 for some time, primarily because of the resonant frequency dampening. It's also got opto-isolator control and can handle way more amps, though those don't really matter.
Obviously the question is - I purchased ...
Started 6 months, 1 week ago (2009-05-21 13:09:00)
by Mariss Freimanis
Here's Chapter 2. It's a rough draft, just like chapter 1.
Mariss
Started 2 days, 16 hours ago (2009-11-27 08:34:00)
by joe aiello joe aiello is offline
I have an old heavy duty wood shaper with 1"1/4 spindle with a 550volt motor.I took off the motor and want to replace it( have a 5 hp 3450 rpm 208v). A surplus supply house near me has some Modicon Cyberline 1000s ac servo drives (7 1/2 hp 1500rpm -I think 230v) and a what looks like a corresponding control unit)- $300 ea. I want to control the speed of the cutter( bigger diameter slower speed). ...
Started 6 days, 4 hours ago (2009-11-23 20:22:00)
by keebler303
If your drives are full current all the time, you need a power supply of the rated current. Geckos (and some others) have idle current reduction when they are not moving. When they are moving at a decent speed, the current drops due to the inductance of the motor. So they are at reduced current at standstill and when moving quickly, which is probably most of the time on a CNC machine. I prefer to...
Started 2 years, 10 months ago (2007-01-31 00:00:00)
by epineh
Thanks for the link Mike, I had a quick look and it looks simple enough, I wonder if you could use it without the film, just by "squeezing" some in the holes required, then cooking.
I will investigate further when the screaming settles down a bit later on tonight (3 young kids!!!)
Cheers.
Russell.
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Hot threads for last week on General Electronics Discussion::
Started 6 months, 1 week ago (2009-05-21 13:09:00)
by Mariss Freimanis
Here's Chapter 2. It's a rough draft, just like chapter 1.
Mariss
Started 1 week, 4 days ago (2009-11-18 11:25:00)
by beliefdrive
you need two driver, for two stepper motor, can't conect paraller
Started 6 days, 4 hours ago (2009-11-23 20:22:00)
by keebler303
If your drives are full current all the time, you need a power supply of the rated current. Geckos (and some others) have idle current reduction when they are not moving. When they are moving at a decent speed, the current drops due to the inductance of the motor. So they are at reduced current at standstill and when moving quickly, which is probably most of the time on a CNC machine. I prefer to...
Started 1 year, 6 months ago (2008-05-30 13:32:00)
by tajord
I have these three chips lying around and was wondering if anyone has any driver plans/schematics to assist here, I've been looking for a while now and still haven't came across any, i heard they chop current (don't know if i used that term correctly), can someone help or point me a direction relating to them?
Attached Thumbnails...
Started 2 days, 8 hours ago (2009-11-27 16:52:00)
by justCNCit justCNCit is offline
Hey. My Xylotex seems to be malfunctioning (primary Y axis no longer responds to the directional pin control, and takes every step in the same direction)
Been looking at the G540 for some time, primarily because of the resonant frequency dampening. It's also got opto-isolator control and can handle way more amps, though those don't really matter.
Obviously the question is - I purchased ...
Started 22 hours, 16 minutes ago (2009-11-29 02:46:00)
by TOTALLYRC
Originally Posted by RedLabel
I opened this one on the software section but I think it suits here better(the forum is very big). Here it is...
In short I'm asking if a pci add on parallel port card works with the boards like xylotex or not...
Started 2 years, 10 months ago (2007-01-31 00:00:00)
by epineh
Thanks for the link Mike, I had a quick look and it looks simple enough, I wonder if you could use it without the film, just by "squeezing" some in the holes required, then cooking.
I will investigate further when the screaming settles down a bit later on tonight (3 young kids!!!)
Cheers.
Russell.
Started 2 days, 16 hours ago (2009-11-27 08:34:00)
by joe aiello joe aiello is offline
I have an old heavy duty wood shaper with 1"1/4 spindle with a 550volt motor.I took off the motor and want to replace it( have a 5 hp 3450 rpm 208v). A surplus supply house near me has some Modicon Cyberline 1000s ac servo drives (7 1/2 hp 1500rpm -I think 230v) and a what looks like a corresponding control unit)- $300 ea. I want to control the speed of the cutter( bigger diameter slower speed). ...
Started 15 hours, 17 minutes ago (2009-11-29 09:45:00)
by vger
I would be tempted to use the driver boards in the machine (if they are seperate) and skip the Yamaha robot language. Does the existing machine use stepper motors or servo motors? Are the drivers for the motors seperate from the controller board? Obviously you will need a third axis driver and motor, and sticking with the same style (stepper or servo) may make things easier. The one pick and ...
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