Manual spindle speed control?

[lloydsp]

I've always, only, used automatic speed control on my mill's spindle.  But I've had a failure that allows me to control the speed manually, but will not allow automatic control.

How do I change my post-processor or the g-code in a way that will allow me to start and set my spindle speed manually, any time a speed change is requested in the g-code?

I've never done it.

Thanks,
Lloyd

[dh42]

Hello

maybe you can add a M1 before the spindle start/speed in the mop macro?

++
David

[lloydsp]

Yep, probably, David.  There's presently an M03 (spindle on, clockwise) followed by the speed, then a pause to allow it to come up to speed.

I think the M01 will do, although I might also have to remove the speed command, because no 'automatic' spindle commands work, right now.

Lloyd

[Dragonfly]

I think the M01 will do, although I might also have to remove the speed command, because no 'automatic' spindle commands work, right now.

No need to remove the speed command. Unless there is a feedback to Mach3 to read the speed it simply emits the command - by PWM, frequency or modbus interface. Simply, there's no automatic speed control.
When I used a simple router with manual speed dial the Sxxxx command stayed in the code. I used it as a reminder what speed to set manually.
With the current spindle speed command is sent to the inverter via modbus and a plugin for Mach3.
In the PP you may want to add a comment line for a message to set speed after M1.

[dh42]

No need to remove the speed command.

+1

++
David

[Dragonfly]

message to set speed after M1

My error. BEFORE M1.

[Bob La Londe]

I've always, only, used automatic speed control on my mill's spindle.  But I've had a failure that allows me to control the speed manually, but will not allow automatic control.

How do I change my post-processor or the g-code in a way that will allow me to start and set my spindle speed manually, any time a speed change is requested in the g-code?

I've never done it.

Thanks,
Lloyd

Didn't you upgrade your mill to a Centroid control?  Centroid has an owners support forum.  (It might only be open to pro/hobby Acorn users.  I forget.)  It might be worth a check. 

[lloydsp]

"Didn't you upgrade your mill to a Centroid control?  Centroid has an owners support forum.  (It might only be open to pro/hobby Acorn users.  I forget.)  It might be worth a check. "
--------
I did check in there.  No responses in three days.  The All-in-One-DC controller is now considered an obsolete product, and the users seem to believe so, also.

But I got it solved until I fix the automatic speed setting issue:  The Speed command IS acted upon by the Centroid post, and requires the machine to be in automatic spindle mode.  But just commenting-out the command (and the M3 preceeding it) fixes it.  I just set the speed during the pause-for-operator during a tool change.  Since the g-code is visible on the console, I can read the speed from there.

Also, the M1 command is ignored by the Centroid controller.  It does nothing at all.

But I'll be milling in the morning.

Lloyd

[dave benson]

Also, the M1 command is ignored by the Centroid controller.  It does nothing at all.

this might be of interest.
Dave

[Bob La Londe]

Try M0

[lloydsp]

Yep, Dave and Bob.  Although I don't need the extra pause, it would be nice to have it working the way I initially intended.

I'm heading out to the shop in about ten minutes.  I'll give M0 a try.

Lloyd

[lloydsp]

And yes:  M0 works fine on this control.  I haven't found where the 'optional stop' switch is, yet, for the M1 command.  I'll have to look in the AIODC docs to find that.

In the meanwhile, I can run my jobs.  And I think I (mentally) deduced where the problem is with the automatic speed control.  Since the solenoids and board outputs are working properly to control the speed, I must assume that either the speed position potentiometer on the machine, or the A/D input serving it on the controller board is/are failing.  That might involve disassembling that head again, so it'll have to wait until this project is finished.

Lloyd