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Messages - 4lowie

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General Mach Discussion / Re: Brain play.....
« on: April 12, 2015, 08:05:36 AM »
Found the led 804, so what command do I tell it to do? I tried getting to trigger at >0 but that didn't do it.....


General Mach Discussion / Re: Brain play.....
« on: April 11, 2015, 08:52:12 AM »
Thanks guys
Couldn't find LED 904.

Also had a look at the screen editor program but couldn't see how to change command.

O we'll, I'll keep playing.

General Mach Discussion / Brain play.....
« on: April 10, 2015, 09:08:42 AM »
Hi all
Just started to have a look at the brain function and have a question. Mainly I can't find cycle start command in the brain editor list.

I want to have cycle start trigger output 1 and  stop (not estop) turn it off again.

At the moment I have a start in m code but if I hit stop,  it stops motor on output 1 but won't restart when I hit cycle start again.

I thought if I use the brain I could trigger output 1 from start cycle and stop buttons.

Once this is sorted id like to add a remote start stop button via inputs.

Appreciate any help on this.

Thanks Dave

General Mach Discussion / Re: Seperate tool path files
« on: April 04, 2015, 07:29:31 AM »
Good idea, hadn't really thought about them!

So when I wire the switches and set then up, does the machine ignore them in normal motion?

I remember thinking about them when I first built the machine.... Wasn't sure how it all worked so I didn't fit them!

Maybe I need to do some looking into them....... I was worried about the axis over shooting once the switch triggers, or will this always be the same so it can be factored in?


General Mach Discussion / Spindle speed
« on: March 27, 2015, 05:40:22 AM »
Hi all

Is there anyway to link spindle speed to movement velocity?

I'm using mach3 to control a cnc quilting machine and now I'm going use the spindle to drive the sewing machine motor. Varying spindle speed along with motion speed varies the stitch length.

Ideally I'd like the spindle speed to increase ( or decrease) as the motion (x&y) speed increases.

I'm using another stepper as the spindle.
Also not sure about settings to get true rpm. Normal steppers are 200 per rev so do what settings do I us?


Thanks Dave

General Mach Discussion / Re: Mach 3 to drive a motor at fixed rpm
« on: January 30, 2015, 12:23:46 AM »
I see now.... So I've set the Step pin, Dir pin, Step port and Dir port the same as what shows for the unused Z axis which is what I'll use.

Can i set the S*** (whatever the code is) and the M03 command to auto populate from my vcarve tool path.
Do you have an example of this code?

Once again thanks for your help.

General Mach Discussion / Re: Mach 3 to drive a motor at fixed rpm
« on: January 29, 2015, 09:48:56 PM »

After your first reply I went back and had a look and found those settings but which axis is it connected to!

As its a stepper surely it has to be connected to one of the 4 axis drives on my Gecko 540...


General Mach Discussion / Re: Mach 3 to drive a motor at fixed rpm
« on: January 29, 2015, 08:56:23 PM »
Thanks TP

Little confused on this one..... so where do we set the parameters for the stepper motor thats effectively running the spindle?

On my router I use the spindle control to turn it off and on but thats a dedicated rotation type motor.


General Mach Discussion / Mach 3 to drive a motor at fixed rpm
« on: January 29, 2015, 06:12:12 AM »
Hi all

I need to replace the drive motor on the cnc quilting machine i built for the wife, it doesn't have enough torque at the speed I need it to run.

What I'd like to do is use another stepper motor for the sewing machine and drive it from mach 3. I'm only using 2 axis at the moment so it would be easy to use the Z (or A) axis for this.

At the moment I do a M30 motor start to turn on the machine relay at the start of the sewing action, how do I turn on say the Z axis and leave it running until I send another motor stop command at the end of the process?

Thanks Dave

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