On 11/01/2018 03:09 AM, Chris Albertson wrote:
You don't want to block the hole in the spindle so you are looking for an
encoder with a large hole though it? Is that right?
If the spindle is belt or gear driven you could place the sensor on the
gear or pulley that drives the spindle. You could also place a timing
belt puley on the spindle then drive the encoder with a 1:1 belt drive.
1:1 drive would allow using a 3 channel encoder
Yes, see :
http://pico-systems.com/bridge_spindle.html
I did this a number of years ago on my Bridgeport mill, but
it could be done on a lathe as well.
These sensors are ideal for this purpose, as they have logic
to detect the PASSING of the gear tooth, not just the
presence/absence of a tooth.
Jon
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
