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Author Topic: Strange CNC problem...  (Read 4883 times)

Offline Brass_Machine

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Strange CNC problem...
« on: April 26, 2011, 06:41:50 PM »
So I am half way through CNCing my mill. I originally had an el cheapo Chinese TB6560 running my steppers. Ran errr so so. I ended up replacing them with KelingCNC C10 BOB and some CW250 Drivers. The Y axis runs flawlessly. The X axis... not so much. Seems like it is a gamble on whether the stepper will run + or - along the axis. Hit the X+ (Mach 3) to jog it, and it may or may not go in the correct direction.

Any ideas?

Thanks
Eric
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Offline John Stevenson

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Re: Strange CNC problem...
« Reply #1 on: April 26, 2011, 06:47:25 PM »
Sounds like a fault on the direction to that driver.

First off swap drivers and see if the fault moves axis.

Just had a thought , you are not using pin 1 on the BOB are you ?
Pin 1 isn't a high speed port.
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John Stevenson

Offline Brass_Machine

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Re: Strange CNC problem...
« Reply #2 on: April 26, 2011, 07:08:20 PM »
Nope on the pin 1.

Going to swap the drivers and see if it moves. Is this a common type of error?


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Offline Brass_Machine

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Re: Strange CNC problem...
« Reply #3 on: April 26, 2011, 07:34:18 PM »
Not sure what it was... but it is fixed. I tore it down to swap the drivers, put it back together and lo and behold... it works.  A bad connection I believe.

Thanks for the help guys!   :beer: :beer:

Eric
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