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Messages - Greolt

611
Whatda

Those User LEDs and DROs don't need to exist on screen.

Mach will just use them in the background.

Greg

EDIT:  Did you place the macro pump in the macro folder and activate it in General Config?  (Then Restart)

612
Here is my try at it. Though I recommend you take Poppabear's more professional guidance.

As far as I know a brain can not trigger a macro on it's own.  So the macropump does that.

However brains are a no brainer to implement safety timers and lockouts.  (pun intended)  ;D

The two macros that you posted need to be placed in the macro folder with the name of your profile.  Eg.  Mach3Mill

Call them  M615.m1s  and  M616.m1s

The macropump calls the relevant macro when a user LED goes active. 

It basically is one which Poppabear wrote for me a while ago.  Much the same as posted above.

The brain sets the LED when the switch is pushed and held for 1.5 seconds but only if there is no motion,  the spindle is not running and reset is not active.

Being an external momentary switch I think the 1.5 second delay is a good safety measure.   

This means you must push and hold the switch for 1.5 seconds before anything will happen.

Do not want unintentional activation of either macro.

So the addition of the brain is just to allow for easy implementation of the safety lockouts.

Now take note I have done this as a learning exercise for myself.  Have a look but rely on Poppabear for proper advise.  :D


Greg

613
Whatda

Fairly sure you can do this with a macropump and a brain for each macro call.  Unfortunately I am not the one to ask how. :)

Poppabear will most likely be able to set you on the right track.

Greg

614
General Mach Discussion / Re: The hurky jerkies
« on: October 23, 2008, 06:43:03 AM »
There was a bug quite a few versions ago that would turn "CV Feedrate" on without the users input.

It has been fixed but perhaps you are using an older version.

CV Feedrate turned on has pretty much the same effect as if CV is turned off.

CV Feedrate is found on the settings page.

Greg

615
General Mach Discussion / Re: PCB Isolation Milling using LazyCam
« on: October 09, 2008, 04:44:59 PM »

My question is where do I get a 10thou mill? I suppose I can get away with a bit the same size as the biggest gap betwen copper traces and set the tool size appropriately.
What type of tool do you use in the Dremel. I'll have to come up with another solution to use my mill drill. Maybe an adapter to hold a dremel in an R8 collet.


What most use for trace isolation is actually a vee bit.  60 or 45 degrees.  See the spade style bit in this link,

http://www.drewtronics.net/

Here is a video I did using such a bit,

http://au.youtube.com/watch?v=bHCCCjdnbQ4

Greg

616
General Mach Discussion / Re: speeding up my 4th axis rotary table?
« on: October 09, 2008, 02:41:56 AM »
I might be barking up the wrong tree here

but don't you need to set the axis diameter on the settings page

so Mach knows how much to adjust the rotary axis travel speed?

Greg

617
General Mach Discussion / Re: PCB Isolation Milling using LazyCam
« on: October 08, 2008, 07:39:16 PM »
We are probably not answering your question as you hoped.  :)

Some PCB software will out put a DXF of the trace edges.  I know DipTrace will.

And again I don't use Lazy Cam but I'm sure you could produce toolpaths with it from the DXF.

What I do is use Eagle.  It has a free version.  :) 

And there is a ULP  (like a plugin) that directly produces gcode to isolate the traces.

http://pcbgcode.org/index.php

http://millpcbs.com/

Sorry I can't answer your question more as you asked it.

Greg

618
NC Pod / Re: status of NCPod
« on: October 07, 2008, 08:11:47 PM »
I am certainly interested if you have any info on the NCpods development or death.

The official NCpod website has not been updated since 21 Nov. 07.  That is by my calculation nearly a year.

The moderator, of what for a short time was fairly active forum here at Artsoft, has long since gone missing.

I have an NCpod that these days sits on a shelf.  Replaced by a SmoothStepper.

NCpod worked fine for motion control.  Inputs and outputs worked OK for my needs.

However Probe input did not work.   G31 moves were unpredictable and dangerous.

You never knew which direction the axis would move.  Occasionally the wrong axis would move.  :o

So if anyone knows where info can readily be obtained on the NCpod, particularly pertaining to use with Mach3,  I for one would be interested.

Greg

619
General Mach Discussion / Re: Twin Steppers on slave axis
« on: September 18, 2008, 10:41:54 PM »
"Looks to me that if one motor looses a step the the other motor jams up is it ties to correct it"

That concern is shared by a lot of builders but not those who have tried it.

Many machines run independent slaved drives.  Mine included.  Mach handles it well.

Stepper driven machines need to operate within their performance envelope. 

If steppers are loosing steps then you need to retune or redesign.

My way of seeing it is one motor driving both pinions via a linking shaft is a legitimate way of doing it.

Independent slaved drives definitely works.   Two motors hard linked is not the way to go.   IMO of course.

Greg

620
General Mach Discussion / Re: Twin Steppers on slave axis
« on: September 18, 2008, 09:36:59 PM »
One thing you could try is have the two drives share one step and direction signal.

Not suggesting as a permanent fix but would be easy to try and interesting to see the result.

If needed to reverse one motor then reverse one winding connection.

Greg