[cwaugs]

I can have only the Campbell board powered up and reset the button and as soon as I start the VFD, it triggers an E-stop. Tried moving the BOB away from the VFD but still happens. Any Ideas?

[Larken]

I can have only the Campbell board powered up and reset the button and as soon as I start the VFD, it triggers an E-stop. Tried moving the BOB away from the VFD but still happens. Any Ideas?

You can put a .047 uF cap across each limit input right at the BOB.
If the input is just a non filtered TTL input , it will be sensitive to noise coming in on limit switch wires.

LK

[cwaugs]

LK, You hit the nail on the head. after checking voltages and doing a bunch of re-wiring to re-confirm correct 220v 110v and stray ground loop voltages I finally found about 30 volts of induced current in the wiring to the limit terminal E-stop switch that turns the contactor on for the VFD, and also triggers an E-stop in Mach3 through the same shielded cable going into the aux limit input on the BOB. Going to run a separate cable for the 110v and the limit input and install the .047uf caps as insurance. Also in checking all of this, I noticed that the BOB Led's at the step and direction outputs would actually glow when I turned the output of the VFD on (actually running the spindle and doing nothing else) so I'm going to move the BOB away from that "RFD sprayer" Thanks again very much for pointing me in the right direction. Wayne

[cwaugs]

After running a relay for the contactor instead of running the 110v up to the ESD switch no more e-stops! Now on to figuring out how to control the VFD with the Campbell BOB plus. Wayne

[Miguel-2012]

Hello there I want to convert a super max ycm-40 to Mach3 can you helpme please I want to use the original servo motors a all ready have the encoders from USdigital 1000 CPR , 5v

Miguel

[Miguel-2012]

Can some one tell me the experiences in covert the YCM-40 to Mach3 ? What is the best breakout board , the best servo drive ??? Can I use my original transformers ??? Can I skep to buy the hitachi x200 inverter ???

Thanks to every body

[Miguel-2012]

Hello there I want to convert a super max ycm-40 to Mach3 can you helpme please I want to use the original servo motors a all ready have the encoders from USdigital 1000 CPR , 5v

Miguel

Super max ycm-40 to mach3 convert

[CATCH22]

I would go with the Viper Drives from Larry at Larken.

[cwaugs]

And the Campbell board the original transformer and servo motors as well as the original 12v transformer. Can pretty much everything else except wiring and read read read. I tried to document all of my conversion and will help as much as I can but will probably not answer information that is already here. The best thing to do is pick the drives and BOB then find someone on here with the same setup and read all of their posts and take notes and look at pics. HTH

[diyengineer]

I would go with the Viper Drives from Larry at Larken.

I second the VIPER drivers. I have them and use them. Work wonders.

Also, cnc4pc.com Arturo is REALLY helpful.

[jeep534]

how about an update on your machine how it has been performing what you have been making pictures I am getting started on the Big bridgeport finally

archie =) =) =)

[cwaugs]

I will try to get some pics but haven't had a lot of time to work with it although what i have done with it has been faultless. YouTube ycm40 Mach 3 and there is video of the last I cut I believe. I will upload the cutting of the flanges I made for my ls1 engine tomorrow if they're not there already.

[wantaimotor13]

hi, maybe you can visit Stepper motor|Stepping gearmotor wholesale|Stepping motor supplier for help.


Kaly
MSN: [email protected]
Skype:kalyred

[Dstamp]

Two thumbs up for Viper drives & LK BOB, my only regret is that I didn't get it done sooner. Once I really got started last December with the electronics it went much faster than I really expected it to. A lot of mistakes on my part but none with the hardware / software. Made my first few parts with in in February, I'd promised MLW that I would take care of this eyesore first, leftover from rewiring the house over a decade ago;
Before,

After,


2 trials to get to a good one;,

Double sided tape from the Dollar Store worked out OK.

[diyengineer]

The only part i don't like about them is the servo tuning. It's way to barbaric.

Two thumbs up for Viper drives & LK BOB, my only regret is that I didn't get it done sooner. Once I really got started last December with the electronics it went much faster than I really expected it to. A lot of mistakes on my part but none with the hardware / software. Made my first few parts with in in February, I'd promised MLW that I would take care of this eyesore first, leftover from rewiring the house over a decade ago;
Before,

After,


2 trials to get to a good one;,

Double sided tape from the Dollar Store worked out OK.

[Dstamp]

I won't pretend to have mine perfectly tuned, but they're calm and stable. I'd worked with a Westamp driven Thermwood 5-axis a long time ago and when they got out of tune there could be hell to pay, shuddering and bucking until e-stopping itself; occasionally going into fault mode and doing a rapid to the limits / hard stops. With that experience in mind I've taken it pretty slow in terms of optimizing travel speeds. 25 inches per minute is as fast as I've gone with it so far, snails pace compared to current technology but good enough for my basement workshop.

My total into it is about $2500, $1000 for the machine, $200 for a moving truck, a little under $1000 for the electronics & $300 for some tooling. Spindle spline makes a lot of racket, but it works.

[Dstamp]

No problem, did you select a breakout board yet? I found it easiest to use the one from Larken, as I used viper drives from Larken also.
This is the arrangement I used as finished,

but I found it easiest to debug in this arrangement,


It started like this, as I was trying to wrap my mind around what to do,


And this,


In retrospect, I would have saved a lot of time had I just bought low voltage power supplies instead of salvaging parts from the old control to make do.

I remembered what I learned in te navy about these solder cup style connectors,

[jeep534]

My Build thread is here.
Archie's first cnc machine Bridgeport R2E4 Boss 9 to Mach 3
I started some time ago. If I were starting today I would use the larkin drives and a CNC4PC C32 BOB and the largest torridal transformer cnc4pc has for the drives (I am re using the servo motors and encoders on my mill)

[diyengineer]

My Build thread is here.
Archie's first cnc machine Bridgeport R2E4 Boss 9 to Mach 3
I started some time ago. If I were starting today I would use the larkin drives and a CNC4PC C32 BOB and the largest torridal transformer cnc4pc has for the drives (I am re using the servo motors and encoders on my mill)

If i did it again, i also would stick with sourcing everything from larken for ease of tech support. I went with a cnc4pc BOB, and electronics + vipers.

[jeep534]

If i did it again, i also would stick with sourcing everything from larken for ease of tech support. I went with a cnc4pc BOB, and electronics + vipers.

I really like larkin and his drives. they are really nice however, I don't believe his breakeout board has provisions for the safety charge pump or speed control of the VFD (other than just and on and off signal) pendant or touch probe input support unless I am missing something.

archie =) =) =)