Machsupport Forum

Mach Discussion => Mach4 General Discussion => Topic started by: menardmfg on April 28, 2024, 10:54:46 AM

Title: Lathe spindle encoder
Post by: menardmfg on April 28, 2024, 10:54:46 AM

I’m looking for spindle encoder recommendations I’m using ESS with mb3 board and I’m definitely going to do threading. I’m curious to know what this group has had good luck with.
Thanks
Art

Title: Re: Lathe spindle encoder
Post by: arturod on April 29, 2024, 11:13:54 AM

This is how this is done:
https://www.cnc4pc.com/blog/post/con...tepper-and-c82

Check this out:
https://youtu.be/1cx5qVEXGrk

This will give you an idea: https://youtu.be/1cx5qVEXGrk

Arturo Duncan
https://cnc4pc.com

Title: Re: Lathe spindle encoder
Post by: menardmfg on May 12, 2024, 08:49:24 AM

Thanks for that, but I already have a 5hp marathon motor running on a vfd my question was what encoder are people using for rpm feed back and for threading?
Thanks
Art

Title: Re: Lathe spindle encoder
Post by: arturod on May 12, 2024, 08:56:52 AM

Usually a low resolution encoder 100 to 500 PPR.
We offer this one:
https://cnc4pc.com/rotary-encoder-kit.html

Arturo Duncan
https://cnc4pc.com

Title: Re: Lathe spindle encoder
Post by: JohnHaine on May 12, 2024, 05:43:42 PM

Does M4 need a i ppr index pulse as well as an encoder?

Title: Re: Lathe spindle encoder
Post by: Graham Waterworth on May 12, 2024, 07:32:57 PM

I use the Z channel on the encoder for the index pulse.

Title: Re: Lathe spindle encoder
Post by: JohnHaine on May 13, 2024, 04:33:46 AM

Thanks Graham.  So the answer is yes, and the encoder either needs to have a z channel or a separate 1 ppr sensor.

Title: Re: Lathe spindle encoder
Post by: Steve Stallings on May 13, 2024, 10:03:38 AM

Note that if you use the Z channel of the encoder, the encoder must be "geared" 1:1 with the spindle.