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Author Topic: Mach3, 6 steppers and... how to?  (Read 2699 times)

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Offline sebba

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Mach3, 6 steppers and... how to?
« on: October 08, 2012, 06:54:55 PM »
Hello,

I have a 3-axis mill machine, build by myself and for now it is controlled by a Gecko G540 and Mach3.
My X axis use 2 steppers (X and A as slave) and homing switches for all 4 steppers (X, Y, Z, A)

Right now I intend to make some major upgrades at my machine and I want to have 2 steppers for Z-axis (Z and B as slave)
The Y axis will remain with a single stepper. I also want to have homing switches for all steppers
So, after this upgrade, my machine will use 5 drivers for X, Y, Z, A(slave for X), B(slave for Z).

I want to ask if is possible to use a Smoothstepper in combination with 2x G540.
If yes, I suppose an additional rotational axis could be controlled through the C-axis and I'll have a 4-axis milling machine. Is this correct?

Or, there are any better alternatives for this config? For a reasonable price, of course. :)

And for the next level, how can I add the 5th axis having all 6 axis (in Mach3) already allocated? Will have 7 steppers driving a 5-axis machine!?!

Unfortunately I cannot afford servos, at least for the moment. But I need this upgrade (4-axis) asap...

Any advice will be very useful,
Thank you for your time.

Regards,
Seb

Offline sebba

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Re: Mach3, 6 steppers and... how to?
« Reply #1 on: October 10, 2012, 05:31:03 PM »
nobody?? :(

Offline Hood

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Re: Mach3, 6 steppers and... how to?
« Reply #2 on: October 10, 2012, 05:50:21 PM »
You can only have 6 axis and a spindle controlled from Mach and that 6 includes any slaves, Mach4 will likely be different but thats a while away.

As for running two G540 from a Smoothstepper then it shouldnt be a problem, only thing may be the slaved homing but I think any problems with that have been sorted.

Hood

Offline sebba

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Re: Mach3, 6 steppers and... how to?
« Reply #3 on: October 10, 2012, 06:22:34 PM »
thanks Hood, really appreciate it your fast answer
could you also tell me if I can use a second LPT adapter for the second G540? without smoothstepper...

regards

Offline Hood

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Re: Mach3, 6 steppers and... how to?
« Reply #4 on: October 10, 2012, 06:29:08 PM »
Yes you could use a second port instead.
Hood
Re: Mach3, 6 steppers and... how to?
« Reply #5 on: October 11, 2012, 01:04:07 PM »
I'm curious, what are the slaves doing/for?

Offline sebba

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Re: Mach3, 6 steppers and... how to?
« Reply #6 on: October 11, 2012, 02:00:27 PM »
When you have two steppers/ballscrews for one axis and do homing, the homing procedure is separate for each stepper

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