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Re: Long term Z axis problem
John You mention that you are using the G210 on the Z axis and you mention that the problem went a way when you shifted to the chinese drivers. One factor why the G210 may exhibit lost steps may be due to the software direction change timing was be too short. I would increase it if possible to at least 5 usec
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Dan Mauch low cost stepper and servo motors. cases for Gecko drives kits and assembled 3-4 axis drives www.camtronics-cnc.com www.seanet.com/~dmauch ----- Original Message -----
From: "John Stevenson" <john@...> To: "CAD_CAM_EDM_DRO@..." <CAD_CAM_EDM_DRO@...> Sent: Thursday, September 07, 2006 2:43 PM Subject: [CAD_CAM_EDM_DRO] Long term Z axis problem The machine is a NC5 Beaver mill, about the same size as a series II Bridgy. |
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Re: Takisawa Astroturn DTX-1 Retro Fit
archie road
LEE,
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go to www.cnczone.com and search R2E4 and look for "drip fed" also (copied this from somewhere) There are actually 4 manuals for this machine R2E4 . Maintenance, parts, programming, and operating. It sounds that you do not have the operating manual. Search Ebay and machinemanuals.net as there was a BOSS communicating kit for about 50 dollars including software. Port A is used for editing and program transfer. Port B is for DNC and for program transfer by software called EZLINK. MDI executes a line of program and forgets it. MDI STORE does the same but remembers it so you can build a program into memory. It does have a help function where it prompts you for what it needs but does not give enough detail. Hope this helps I am getting a R2E4 soon I hope. it is coming out of a school. Happy Hunting archie =) =) =) Lee wrote: You guys may know what I am looking at here. I have a 1985 Bridgeprt |
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Re: sources for small r8 spindle/motor assemblies
--- In CAD_CAM_EDM_DRO@..., figNoggle <david@...> wrote:
LittleMachinShop.com sells the R8 spindle head part all by itself. You need to buy or make everything else. Since no one really likes the origional drive gears, that is no loss. make a vee belt pulley set-up. I am working on mini-mill (X2) and looking at changing it over to a Vee belt, and adding a shaft lock at the same time. I am also toying with the idea of mounting it on a swivel so I can tilt the head. As you probably know, the mini-mill has a tilting column, but the bug is that the head alone does not lend itself to individual Z motions. Dave |
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Re: I have a problem with my computer freezing up.
Apalais
Tony,
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This computer is in the workshop. It is totaly isolated from the internet.. I will run a defrag tonight. I should not need Zone Alarm as it is only in the workshop used for the cnc machine. Peter ----- Original Message -----
From: tony wong To: CAD_CAM_EDM_DRO@... Sent: Thursday, September 07, 2006 6:54 AM Subject: Re: [CAD_CAM_EDM_DRO] Re: I have a problem with my computer freezing up. We have brand new Dells. They will freeze up also. It depends on what type of program you are running. First thing you may try to is to defragment your computer and clear all cookies and temp files in Control Panel Spywares can cause it too. In the worst case you can have your harddrive wipped (not expensive at all, by a professional) After that, buy Zone Alarm. I use it together with Norton to keep sypware/virus out. Good luck. Tony kz1927 <kz1927@...> wrote: You may have a spyware problem . look up Spybot search and destroy at and Ad-aware These are free and very well known. One will find things that the other may miss. Use both. Hope this helps -John ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.12.1/440 - Release Date: 9/6/2006 |
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Re: I have a problem with my computer freezing up.
Apalais
Hi John,
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I did run the Avg ewido anti-spyware 4.0 through it and nothing came up. I might have to use a few more like you said. I will give it a go. Peter ----- Original Message -----
From: kz1927 To: CAD_CAM_EDM_DRO@... Sent: Thursday, September 07, 2006 5:21 AM Subject: [CAD_CAM_EDM_DRO] Re: I have a problem with my computer freezing up. You may have a spyware problem . look up Spybot search and destroy at and Ad-aware These are free and very well known. One will find things that the other may miss. Use both. Hope this helps -John ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.12.1/440 - Release Date: 9/6/2006 |
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Re: bridgeport boss servo
Les Newell
Actually looking at the picture it looks like the differential version is purely a RJ45 to screw terminal adapter. In that case you may as well wire the cable straight into the encoder. The single ended version does appear to have some circuitry on it. Have a look at this pic <>. The RJ45 is next to the screw terminal.
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As you are using a DeskCNC board I wouldn't recommend using the R2000 series drives. To set the drives up you will have to make a parallel port adapter so you can run their tuning software. Note if you do buy a R990h drive, make sure you also order the screw terminal plug if you aren't using their motherboard. Les rocketscientistnate wrote: I don't see an encoder to RJ45 adaptor, but it doesn't sound hard to make. I don't see where the RJ45 will plug in though. The picture of the R9#H looks like a plug with screw terminals on the other end (but it has 12 terminals and says 6 pin adaptor, wrong picture maybe?). I think I could figure it out if I had all the pieces in front of me to look at, but not knowing whats on the end of anything makes it harder to figure out, and I'd like to get everthing I need in a single order. |
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sources for small r8 spindle/motor assemblies
hi all-
the x-axis of the prototype benchtop mill is nearing completion and the y-axis is being planned out now. in preparation for the z-axis, i'm trying to find r8 spindle/motor assemblies. so far, the only ones turning up are machines that can be cannibalized (like the x2 or x3 mills from sieg). i've checked ebay for motors and such and there seem to be only large motors for vmcs or other machines of that size and ones smaller than a mini-mill motor assembly. are there any other sources? thanks! david NEW! THK SHS-Series Linear Bearing and Guide Pricing Chart <> Sieg X3 and Super X3 Mill Information <> |
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Re: bridgeport boss servo
I don't see an encoder to RJ45 adaptor, but it doesn't sound hard to
make. I don't see where the RJ45 will plug in though. The picture of the R9#H looks like a plug with screw terminals on the other end (but it has 12 terminals and says 6 pin adaptor, wrong picture maybe?). I think I could figure it out if I had all the pieces in front of me to look at, but not knowing whats on the end of anything makes it harder to figure out, and I'd like to get everthing I need in a single order. Nathan --- In CAD_CAM_EDM_DRO@..., Les Newell <lesnewell@...> wrote:
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Re: I have a problem with my computer freezing up.
Hi Tony and Peter,
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You didn't mention any other symptoms of the problem with your PC freezing except that it froze. Is that the only symptom you have? It has been my experience that if the PC freezes suddenly with no error message(s), then you have a problem with the software installation, such as wrong or old drivers, or you may have a hardware problem, such as bad memory, cpu, disks, or, more likely, a bad AC power source. All these problem are difficult to analyze because there are no messages or indications of a problem. I don't think a defrag will help you, as a fragmented disk will not cause freezes, just slow system response. So I must ask, are there any symptoms that can be seen before or after the "freeze"? Or does the PC just freeze? I'm surprised to hear that "brand new" Dell PCs freeze. This should never happen unless your power situation in your shop is noisy (machines running that generate electrical noise on the power lines) or faulty ground. Are you running your PC in a "clean" environment, meaning, are all machines off and is the PC plugged directly into a wall plug with a good ground? Or are you running the PC next to, and controlling a mill? Regards, Bill Old Computer Technician _____ From: CAD_CAM_EDM_DRO@... [mailto:CAD_CAM_EDM_DRO@...] On Behalf Of Apalais Sent: Friday, September 08, 2006 5:15 AM To: CAD_CAM_EDM_DRO@... Subject: Re: [CAD_CAM_EDM_DRO] Re: I have a problem with my computer freezing up. Tony, This computer is in the workshop. It is totaly isolated from the internet.. I will run a defrag tonight. I should not need Zone Alarm as it is only in the workshop used for the cnc machine. Peter ----- Original Message -----
From: tony wong To: CAD_CAM_EDM_ <mailto:CAD_CAM_EDM_DRO%40yahoogroups.com> DRO@... Sent: Thursday, September 07, 2006 6:54 AM Subject: Re: [CAD_CAM_EDM_DRO] Re: I have a problem with my computer freezing up. We have brand new Dells. They will freeze up also. It depends on what type of program you are running. First thing you may try to is to defragment your computer and clear all cookies and temp files in Control Panel Spywares can cause it too. In the worst case you can have your harddrive wipped (not expensive at all, by a professional) After that, buy Zone Alarm. I use it together with Norton to keep sypware/virus out. Good luck. Tony kz1927 <kz1927@yahoo. <mailto:kz1927%40yahoo.com> com> wrote: You may have a spyware problem . look up Spybot search and destroy at <> networking.org/ and Ad-aware <> usa.com/software/adaware/ These are free and very well known. One will find things that the other may miss. Use both. Hope this helps -John ---------------------------------------------------------- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.12.1/440 - Release Date: 9/6/2006 |
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Re: I have a problem with my computer freezing up.
Peter, Harko,
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In Safe Mode, also disable System Restore service. Some nasty viruses use it to reinstall themselves after you clean them out. After you get the machine running properly, you can re-enable it. Also, as mentioned, in MSCONFIG, in the right most "Startup" tab, uncheck any program names you don't recognize, especially any blank lines, or programs with cryptic names like Cx8Qgx93. Many are viruses. Uncheck programs like Real Payer, QTTask, Winamp, or anything else not immediately related to the CNC program. After you reboot, things should run much faster. Dave Harko Schwartz wrote: goto start program run and enter msconfig and then pick options that will |
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Re: bridgeport boss servo
Les Newell
You need one R9#H connector and one encoder to RJ45 adapter.
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Les rocketscientistnate wrote: I plan to use my deskcnc board. The adaptor would be the R9#H connector? What is the second connector? |
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Long term Z axis problem
"John Stevenson
The machine is a NC5 Beaver mill, about the same size as a series II Bridgy.
It's on type 42 steppers direct driving 5tpi screws and it was made this way, it's not a conversion. For any years it ran on an old bi level driver with little or no trouble except for old and dated components. When the last driver borad went pear shaped I changed over to modern drives and settled on Gecko 210's running at 10 microstep. X and Y have alway run OK but the Z axis has always lost postion 'slightly'. on a normal small part at the finish I could be a thou or two short of zero. It's never bothered me as nothing I do is that critical in Z. On some parts where I have to drill literally 1,000's of small holes I could be 15 to 20 thou short, again not a problem as these are thru holes and there is enough clearance both sides. The machine runs AHHA software which is very good as it's customisable in many ways. Different settings were tried to try to cure this, pulse width's, leading edge, trailing edge etc. Marriss was consulted but he put it down to a bad motor even though I had tried three different ones. Last weekend I had the misfortune to crash the machine, my fault I chose the right tool but wrong offset and stuffed the 20mm cutter into the vise jaw. Not a bad crash as things go, 30 thou cleaned the jaw up on the grinder and the tool was resharpenable without taking loads off but it took the Z Gecko out. Fuse was Ok but all the mosfets are burnt. OK, my fault, hands up and learn from the experiance. Replaced it with a brand new Gecko 210 and away we went. Ran the rest of Sunday and all day Monday, switched off Monday night and rezeroed the Z as usual, 10 thou out. Switched on Tuesday morning, hit start and no Z moves, checked the drive, no light on but fuse OK and it had 62 volts to the drive ????????? Why ?? running OK on the night, did nothing and no drive in the AM and fuses intact. Internally the drive shows no damage. No spare drives left, new or secondhand but I did have a couple of 80 volt 7.8A Chinese drives handy. Wired one of these in, same motor, same fuse and everything and did a dummy run of the program to try it out. Worked OK but when it had finished the Z was back to zero. Since then the machine has done 8 hours of continious drilling and hit zero at every finish. Nothing has been changed as regards setting, ramp, acceleration etc other than the steps being altered as these Chinese drives are 8 microsteps instead of 10. The Gecko's had the jumper set to the 42 motor setting but the Chinese ones don't have a setting. Just have to wait and see what the long term results are. John S. |
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Re: bridgeport boss servo
I plan to use my deskcnc board. The adaptor would be the R9#H
connector? What is the second connector? Nathan --- In CAD_CAM_EDM_DRO@..., Les Newell <lesnewell@...> wrote: their motherboard but a real problem if you want to use them with adifferent breakout board. Also you need to buy an adapter to wire up theencoder and yet another adapter if you don't want to use theirmotherboard. I personally much prefer physical pots for adjusting the tuning. |
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Re: bridgeport boss servo
Les Newell
The later drives are software tuning only. This is ok if you use their motherboard but a real problem if you want to use them with a different breakout board. Also you need to buy an adapter to wire up the encoder and yet another adapter if you don't want to use their motherboard. I personally much prefer physical pots for adjusting the tuning.
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Les rocketscientistnate wrote:
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Re: bridgeport boss servo
--- In CAD_CAM_EDM_DRO@..., Les Newell <lesnewell@...>
wrote: continuous stall current. In other words the motor can handle 6.8Acontinuously without damage. The peak current (and hence torque) is much higherthan this but you can't sustain it for any great length of time. Thisallows you to push 20A or more through the motor while accelerating. Thisis one of the big advantages of servos. Steppers can never supplymore than their rated torque while sevos are capable of very high torque inshort bursts.is designed for slow steppers so your servo will never spin atanything like it's maximum rated speed anyway. What about the R2010, it appears to be the newer model of the same thing, and a little cheaper. Nathan |
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Re: bridgeport boss servo
Les Newell
I would stick with the 20A drive. 6.8A stall current is the continuous stall current. In other words the motor can handle 6.8A continuously without damage. The peak current (and hence torque) is much higher than this but you can't sustain it for any great length of time. This allows you to push 20A or more through the motor while accelerating. This is one of the big advantages of servos. Steppers can never supply more than their rated torque while sevos are capable of very high torque in short bursts.
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Increasing the voltage increases the motor's maximum speed. The BP is designed for slow steppers so your servo will never spin at anything like it's maximum rated speed anyway. Les rocketscientistnate wrote: Would the R990H2 be better? It is 200V/10A. The motor is 140V Max, 6.8A stall current. The R990H is 100V/20A. I don't really know what I'm looking at, but it looks more fitting to me. |
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Re: bridgeport boss servo
--- In CAD_CAM_EDM_DRO@..., Les Newell <lesnewell@...>
wrote: much a drop in replacement. A Gecko drive will have problems with the2000 count encoder. Apart from the speed issues Jon mentioned, Geckostend to have tuning problems with high resolution encoders. However aRutex drive, such as the R990H should be ideal <>.Rutex drives are designed for differential encoders and the on-boardpulse multiplier will sort out the speed issues.Would the R990H2 be better? It is 200V/10A. The motor is 140V Max, 6.8A stall current. The R990H is 100V/20A. I don't really know what I'm looking at, but it looks more fitting to me. Nathan |
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Re: bridgeport boss servo
You also may want to look at the cnc teknix drives at www.cncteknix.com or more specifically
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,shop.product_details/flypage,shop.flypage/product_id,9/category_id,3/option,com_virtuemart/Itemid,67/ They take quadrature or differential encoders. A bit more sophisticated than the Rutex in my opinion. Dan Mauch low cost stepper and servo motors. cases for Gecko drives kits and assembled 3-4 axis drives www.camtronics-cnc.com www.seanet.com/~dmauch ----- Original Message -----
From: "Les Newell" <lesnewell@...> To: <CAD_CAM_EDM_DRO@...> Sent: Thursday, September 07, 2006 1:41 AM Subject: Re: [CAD_CAM_EDM_DRO] bridgeport boss servo The motor itself should be ideal. Mechanically it should be pretty much |
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Re: I have a problem with my computer freezing up.
tony wong
We have brand new Dells. They will freeze up also. It depends on what type of program you are running. First thing you may try to is to defragment your computer and clear all cookies and temp files in Control Panel
Spywares can cause it too. In the worst case you can have your harddrive wipped (not expensive at all, by a professional) After that, buy Zone Alarm. I use it together with Norton to keep sypware/virus out. Good luck. Tony kz1927 <kz1927@...> wrote: You may have a spyware problem . look up Spybot search and destroy at and Ad-aware These are free and very well known. One will find things that the other may miss. Use both. Hope this helps -John |
Bill Newell
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