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Author Topic: Spindle encoder for cnc lathe conversion?  (Read 7746 times)

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Spindle encoder for cnc lathe conversion?
« on: December 17, 2009, 08:58:48 PM »
I am starting my lathe conversion and I need to know what I need to purchess for the spindle encoder to use with mach 3 software.
Also do I need any thing else with the encoder to like a eletrical board or does the encoder just go to the parallel port?

Any advice would reall be great!!!!

Thanks Mike ???
Re: Spindle encoder for cnc lathe conversion?
« Reply #1 on: December 17, 2009, 09:14:50 PM »
Mike,

Have a look at the Omron EE-SY672 rande of sensors. The nice thing about these is that they take a wide range of voltage inputs (5V-24V) and have a filter and amplifier built in along with a sensitivity adjustment. It's basically a plug-n-play sensor.

They have reflective ones as well as slotted ones. Have a look at this engineering note.
http://www.homanndesigns.com/EN001.pdf

The sensors can be found here;

 http://au.mouser.com/catalog/catalogUSD/640/1873.pdf


Apart from supplying the sensor with 5Vdc you can just feed it straight into your parallel port, although a buffered non-opto-isolated (sensor contains an opto-isolater) input to a BOB mat be better.

Cheers,

Peter.


Cheers,


Peter.
----------------------------------------------------
Homann Designs
http://www.homanndesigns.com
email: peter at homanndesigns.com
Re: Spindle encoder for cnc lathe conversion?
« Reply #2 on: December 17, 2009, 09:20:16 PM »
Thanks Peter,
But what is input to a BOB mat be better mean?

Thanks Mike
Re: Spindle encoder for cnc lathe conversion?
« Reply #3 on: December 17, 2009, 09:26:39 PM »
Thanks Peter,
But what is input to a BOB mat be better mean?

Thanks Mike


It might be better to feed the input through a breakout board if you have one.

Cheers,

Peter.
----------------------------------------------------
Homann Designs
http://www.homanndesigns.com
email: peter at homanndesigns.com
Re: Spindle encoder for cnc lathe conversion?
« Reply #4 on: December 17, 2009, 09:31:04 PM »
Thanks Peter,
Any suggestions on what type of breakout board to get and where I can purchess one?

Thanks Mike
Re: Spindle encoder for cnc lathe conversion?
« Reply #5 on: December 17, 2009, 09:36:17 PM »
Thanks Peter,
Any suggestions on what type of breakout board to get and where I can purchess one?

Thanks Mike

Yes, Mine. :)

http://homanndesigns.com/store/index.php?main_page=product_info&products_id=59

It's a really good solid buffered I/O breakout board.

What stepper drivers to you have?
Cheers,

Peter.



----------------------------------------------------
Homann Designs
http://www.homanndesigns.com
email: peter at homanndesigns.com
Re: Spindle encoder for cnc lathe conversion?
« Reply #6 on: December 17, 2009, 09:39:11 PM »
I am going to be using compumotor zeta 4 drives.
Re: Spindle encoder for cnc lathe conversion?
« Reply #7 on: December 17, 2009, 09:46:21 PM »
Hi Mike,

Had a quick look at the data sheet. The drives should work fine with the MB-02 breakout board.


Cheers,


Peter.
----------------------------------------------------
Homann Designs
http://www.homanndesigns.com
email: peter at homanndesigns.com
Re: Spindle encoder for cnc lathe conversion?
« Reply #8 on: December 17, 2009, 10:05:49 PM »
Ok thanks again Peter!!!
Re: Spindle encoder for cnc lathe conversion?
« Reply #9 on: December 17, 2009, 10:22:44 PM »
Hey Peter, Another question with that encoder what do you need for it to read on the spindle?
I think you mount it so that it reads something on the spindle.Is this correct?

Thanks Mike