Centroid Community CNC Support Forum

No problem.
I started with a 23 frame motor but with the carousel loaded with tools it was on the edge of loosing steps.
I upgrade to a 34 frame closed loop stepper with a 3:1 reduction & haven't had a problem since.
If you want some more info on my setup you can see it here;
https ...

I used the reduction ratio to increase torque of the stepper. This reduced the jerk in start stop motion.
As you can imagine the moment of inertia of a full carousel is significant. I have since upgraded to a larger frame stepper.
I would imagine that with a DMM servo you will need to step down ...

I used a generic leadshine style closed loop stepper for the carousel & a Velocio ACE PLC to generate the pulses for the stepper.
The PLC file is on page 2 of this thread & the M6 macro on page 3.
If you break down the steps required a toolchanger is not too difficult.
Regards,
Michael

I have done an ATC both ways, using the A Axis & stepper is by far the easiest.
Converted to Ether1616 control to allow use of A-Axis for future use. Both setups listed below with macros attached.
A-Axis
https://centroidcncforum.com/viewtopic.php?f=60&t=3172
Ether1616
https://centroidcncforum.com ...

Could this be done with the spindle indexed with an encoder & cut in a similar fashion to a single point internal thread?
Just a matter of generating G code for the rifling pitch.

Ok a quick update as this social isolating has allowed me to get back into the shed.
Have worked out the logic to control carousel through the Ether1616.
Using a cheap PLC (Velocio) to interface to E1616 with 4 bit logic for positioning with two other bits to activate move & signal move complete ...

Thanks CNCNW,
Found that the m94 /31, m95 /31 will turn cooling fan on & off when assigned in wizard.
Possibly include a run on timer and/or a thermo switch as Marty suggests.
Regards,
Michael

As the title say's, is there a standard spindle cooling fan M Code.
I have assigned the fan to an Output (output 1 currently, also assigned in the wizard) & would like to turn the fan on or off with a command.
Also is there a way to have the fan run time controlled by Acorn PLC is is it best done ...

Slodat,
I had the exact same issues as you & ended up running via the DB25 port with differential drivers. I found this this to be most repeatable.
I am also currently testing CNC4PC C86 board with some success but still early at this time, however it needs 12v supply. Even though its supposedly ...

I don't think there is really such a thing as too big.
To get decent cable control & ventilation space around your drives you will use all of it.
Potentially you could have up to 6 drives in the cabinet with 4 axis, spindle & toolchanger.
The extra depth of the one you listed would be handy to ...