Optical encoder for threading

Optical encoder for threading

This topic has 4 replies, 3 voices, and was last updated 31 January 2017 at 21:41 by John Haine.

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31 January 2017 at 20:59 #281610
Mike the Bike
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@mikethebike
I am getting a Denford Orac lathe back in working order and I am not sure if the encoder originally fitted to the spindle is satisfactory for use with either Mach3 or Mach4. If the technology is too old then what should I consider as a replacement, preferable still on the spindle rather than belt driven from the spindle.

Thanks, Mike
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31 January 2017 at 20:59 #15136
Mike the Bike
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@mikethebike
31 January 2017 at 21:07 #281613
John Stevenson 1
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@johnstevenson1
We are just using a cheap Omron one from RS, don't have the number handy, the lathe is at work.

You only want one of this and a one slot disc as Mach3 and 4 cannot read a multiline encoder.

I can look the part number up tomorrow if you want ? tried checking past orders on the RS website but it's in a continual loop
31 January 2017 at 21:14 #281615
Mike the Bike
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@mikethebike
Thanks John,

That would be a great help and from what you say I guessI could use the plain back of the existing disk and just cut a slot. ?how wide a slot?

Thanks, Mike
31 January 2017 at 21:41 #281626
John Haine
Participant
@johnhaine32865
On my S7 the disc is about 90mm diameter Ali and the slot about 10 mm wide, but it's pretty uncritical. So the slot sub tends about (10/3×90)x360 = about 13 degrees. If you adjusted the slot width in proportion to your diameter it should behave the same.
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