Centroid Community CNC Support Forum

Perfect, that's exactly what I needed to know. But I need to synch the lathe headstock to the leadscrew. My lathe design actually moves the headstock via leadscrew rather than having a carriage move with the leadscrew. This is actually a combo machine, with a 5 axis mill head that can machine on the ...

Uwe

I'm not following. I don't mean I'm going to use the Acorn as only an ELS, I mean I want the Acorn6 (in a 6 axis controller configuration) to take the data from the spindle speed and the absolute position from the spindle encoder, and calculate how far the lead screw motor has to turn to keep ...

Hi Guys:

Wondering if it is possible to implement an Electronic Lead Screw setup on a lathe using the Acorn or Acorn6 controller. I am working on a lathe design where I would like to eliminate all the gearing and move the carriage with a stepper or servo, using an encoder on the main headstock ...

Hey Guys:

Another quick question. Couldn't find anything in the forums, but would it be possible to use the DB25 for driver module step and direction outputs, and the H2 and H3 Enable only outputs for the associated drivers? Enable is not a high speed output, it should work as long as the Acorn ...

Hi guys:

Thanks all (cnckeith, richards, etc.). Appreciate your insights.

Can't help but notice that pretty much all stepper driver schematics show OC drive for the module. A few mention line drivers, but only if the distance from the driver to the stepper module is relatively far, or the device ...

So after a bunch of research on this topic on the forum, I have come to the conclusion that other than a few idiosyncrasies, either interface can be successfully used with most stepper drivers. There are issues with speed (drivers with cheap optocouplers), and max frequency of signals (also due to ...

I think if you browse this forum long enough, you will find lots of people who have tried to run stepper drives using the open-collector outputs.

You may find that many of them have struggled with loss of position due to dropped steps.

You might find more than a few whose problems were solved by ...

Gary:

Well, aren't you just a ray of sunshine. Just because someone doesn't want to do it your way, they are wrong.
If you don't care if anyone follows your advice, why bother to give it? I think I'll manage just fine without it.

I am not a novice at this. I have built over 150 machines, and ...

Find a schematic for Leadshine drives that show the step and direction connected to the DB25 connector. Most stepper drives do not work with the open collector data outputs. Db25 breakouts are a dime a dozen on Amazon, etc.

Don't use the ENA connections as they disable the drive when energized ...

Hi guys:

I'm currently designing a CNC using the Acorn controller, I don't currently have one so I have a few questions about hookup. The documentation section is pretty overwhelming, there are hundreds of schematics and so on there, it's hard to find what you are looking for.

What I want to do is ...