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Messages - Davek0974

1531
General Mach Discussion / Re: Hole cutting code
« on: July 11, 2016, 02:05:06 PM »
Is the Z reference correct?

My code would run from 0 to -9mm

Just wondering ;)

1532
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 11, 2016, 09:43:01 AM »
It works fine now - the numbers do have to be reversed if it was previously set for normal homing.

Negative for home offset with axis motion
positive for home offset with no motion / legacy homing.

1533
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 04:49:27 PM »
I think i see where its going possibly -

1 - in normal mode where the axis moves, I have a negative number in home off as it tells the axis to move negatively or towards home.

2 - in legacy mode where it does not move, I need a positive number as that is where the axis really is.

Pretty certain i have it set as (1) above and i need (2)

;)

1534
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 04:27:17 PM »
Ok, so i am homing at about Y250 due to the switch position, I should stick 250 in home-off and turn on legacy?

1535
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 04:16:28 PM »
I just had it set so that it worked in normal mode then presumed turning on legacy just stopped the axes moving?

Seems not.

1536
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 04:07:04 PM »
Hmm, i'll have to check/try that i think, not sure what is in there, but it does home at the front (max Y+)

I think it may be negative.

1537
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 03:49:26 PM »
Ha, the music was the radio, just fills in the quiet bits ;)

It gives me the impression it might actually work ;)

I had the home offsets set so that in normal mode it worked properly - it homed, then moved to where zero really was.
I just turned on legacy homing and when i tried jogging, it only moved one way, tried the MPG and bang it went, good thing i have the limits wired.
Turn off legacy and back to normal - very odd.

1538
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 02:18:52 PM »
It is under Special Functions and then Other, should see on right side the Legacy Home Offset option.

Hood

The legacy homing option does not seem to work, I turned it on but although it did stop the axes moving after homing, it also corrupted axis movement in that the Y axis only moved one-way regardless of instruction - the jog buttons only moved one way and the MPG sent it slamming into the stops. Turning the legacy option off again and re-starting Mach fixed the issue.

I'll leave it off for now i think.

1539
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 06:39:17 AM »
Hmm, odd - the encoder fault was not there today, maybe a PC reboot or complete shutdown fixed it? Been knocking seven bells out of it all morning and it's not returned so I'm happy with that.

Next I fitted up the Spindle VFD, expecting serious issues with my complex manual/auto speed control idea. I was 100% amazed that I have perfect control of speed from 40rpm to 3000rpm within about 25rpm tolerance! It tells me to choose back-gear or high-gear and high or low speed pulley setting depending on speed chosen.

The only issue it does have is that if it is set for say 100rpm in back-gear low range, and the code calls for 2000rpm in high-gear high range, it will spin up the spindle and then tell me to change gear - this cannot be done without smashing the drive.

I have all the code in SpindleSpeed.m1s - can it also stop the spindle and restart it after pressing enter without wrecking the code flow etc ??

Picture of my bench-mess below ;) Useful to gain an idea of cabinet size too.

A short video here...
https://youtu.be/RiXxmCpC-R0

1540
General Mach Discussion / Re: Bridgeport Knee Mill Conversion?
« on: July 10, 2016, 03:09:28 AM »
Ok, i'll try swapping the connections over and see if the fault follows, also check my grounding as it all just thrown together on the bench at present.

If no luck, i'll dig the 'scope out and have a look-see.