CNC Spindle synchronization

[Leadhead]

Chaz - Thanks. Did you use the rotary encoder?

[Chaz]

Chaz - Thanks. Did you use the rotary encoder?

I do use a rotary encoder. Its bolted on a shaft that comes out of the gearbox of my machine (1:1 ratio). Im not using Mach however.

[Leadhead]

Chaz THanks again. Has anyone connected such a rotary encoder to Mach 3 please?

[Chaz]

Chaz THanks again. Has anyone connected such a rotary encoder to Mach 3 please?

Im sure, certainly that's the way that you deal with speed checking and indexing on Mach 3 too. I tried via my Pokeys board but gave up with Pokeys and then Mach 3.

[Leadhead]

Where did you go after Mach 3?

[Chaz]

Where did you go after Mach 3?

Centroid Acorn. So much better.

[hanermo2]

I highly recommend using an optical encoder, even like a cheap amt-102, for the index signal.

But this will need a high-speed interface board, as the signal is very crisp - what you want - and very short so only good motion control hw will be able to read it.

I tried about 10 different solutions - and am now using full industrial servos with index and a csmio-ip-s interface kit from cslabs.

[JohnHaine]

One thing to watch out for is that if your new motor is not controlled from M3, M3 won't know if it's running. You need to start the motor AND press the "Spindle" button.