Newbie- Total NOOB needs advice on retrofit

[adbradley]

I have a Denford Orac lathe that i have gutted all of the electronics from. i plan to replace the electronics with the following

Controller: http://www.kelinginc.net/C11Manual.pdf

Drivers: http://www.kelinginc.net/KL-8060.pdf

Here are the specs on the motors that came with the Orac
http://www.denfordata.com/bb/download/file.php?id=355 the motors are the 0310 A8

I picked up a couple 70vdc/4amp power supplies from ebay, so i have that covered.

I plan to use a VFD to control the spindle.


So what am i missing here? can someone review this stuff and give me some input?

Thanx,

Adam

[jalessi]

Adam,

Looks like you have it covered.

Give us a shout if you get stuck.

Jeff...

[adbradley]

Do you know if there is a less costly board i could use? i dont really know or understand the difference between this one and just a basic BOB.

[jalessi]

Adam,

You could use a C-10 however if has no VFD provisions.

http://tinyurl.com/lvacsn

If you would like to control the VFD with Mach3 there are other options such as a C6 variable speed control board.

http://tinyurl.com/le7t8e

Its not a all in one solution however it will save you a few dollars.

Jeff...

[adbradley]

would i still be able to use an e stop and proximity switches with that setup?

[jalessi]

Adam,

The C-10 has five input pins 10,11,12,13,15.

Pin ten is recommended for the eStop that leaves four inputs for home and limit switches.

Jeff...

[adbradley]

I also notice the bigger board has a charge pump, do i need this?

[jalessi]

Adam,

The charge pump is a safety device that monitors Mach3, if Mach3 crashes or the computer stops running the charge pump relay will turn off whatever it is connected to.

Checkout the link below for more detailed information.

http://www.cnc4pc.com/Store/osc/prod...products_id=51

Jeff...

[Al_The_Man]

Another name/method is a watchdog timer, I notice some BOB's use the W.D. method, it all depends on how the 12khz signal is used.
Some interpret it with a charge pump, some a timer.
With a WD, the 12khz signal keeps reseting the timer before it has chance to time out, if the signal disappears the timer timer times out and picks up a relay in the E-stop string.
Al.

[adbradley]

Thanx Al, i will check that out as well, so far my money savings has been great through ebay.. i just picked up 2 gecko 203v's for $160 total shipped! so that on top of $80 for my two 70vdc power supplies, im at $240 for gecko drivers and decent power supplies!

now all i need is a BOB and i can get some steppers moving!

[adbradley]

My end result will be a mach3 controlled lathe with a VFD controlled spindle. Will it be worth it for me to pay $125 for the full c11 board or just get the c10 and add to it later?

[adbradley]

Can you guys review the stuff here http://www.cnczone.com/forums/showthread.php?t=87748 and let me know if im on the right track?