Some discussions
http://www.cnczone.com/forums/tormach-personal-cnc-mill/261218-software.html
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Omron sells on Ebay for the same money. Different resolutions, you have to
look around.
http://www.ebay.com/itm/OMRON-Rotary-Encoder-E6B2-CWZ6C-E6B2CWZ6C-1000P-R-IND002-/301513195266?pt=LH_DefaultDomain_0&hash=item4633963f02
On Mon, Mar 2, 2015 at 11:29 AM, Andy Pugh wrote:
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> > On 1 Mar 2
On 03/02/2015 02:00 AM, Gregg Eshelman wrote:
> You could use a timing belt from the motor to the spindle
> then put the encoder on the motor. Do the math thing with
> the pulley ratio and you can get the spindle RPM.
The problem is that for multi-pass threading, you need one
index pulse per rev
> On 1 Mar 2015, at 22:44, Jon Elson wrote:
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> Oh, yes, if you are ONLY using software to read the encoder,
> that is a real problem!
It isn't a disaster if you lose count at high speeds as long as you keep count
at threading speeds.
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On 3/1/2015 10:53 AM, Martin Dobbins wrote:
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> Jon,
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> Thanks, I'm a little concerned about the count. Back of an envelope
> calculations suggest that by the time I put a countershaft on the Sherline
> lathe to get useful torque at a low speed it will top out at ~1700 rpm
You could use a timi
