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565enc [2016/12/16 09:16]
n1eu
565enc [2017/03/15 14:07] (current)
n1eu
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 ====== Orion and Orion II small encoders - replacement sources and installation tips ====== ====== Orion and Orion II small encoders - replacement sources and installation tips ======
  
-The six small encoders used in the Orion and Orion II are no longer available and the non-exact replacement encoders offered by Ten-Tec service are expensive. ​ There are no exact replacements available on the market with a 25mm shaft length, 6mm diameter round shaft, and integrated switch. ​ If you're unable to obtain exact replacement encoders, the Bourns PEC11L-4225F-S0015 and PEC11L-4125F-S0020 encoders are offered by Mouser. ​ They work okay, with detents (clicks) as you turn them, but with a bit faster action than the originals. ​ I used the S0020 encoder but believe the S0015 would be slightly preferable with a slower pulse rate.  There may be two pulses per detent so it can be tricky setting the value precisely, between detents. ​ If you know of another encoder source, please contact N1EU so this page can be updated.  ​It is possible that a 20mm shaft length encoder would work and if that is true, you can use the Bourns PEC11L-4020F-S0015 instead if you could find them (unstocked at Mouser and Digi-Key), a non-detented encoder. ​ If someone can confirm the 20mm shaft length works well, please contact N1EU so this page can be updated.+The six small encoders used in the Orion and Orion II are no longer available and the non-exact replacement encoders offered by Ten-Tec service are expensive. ​ There are no exact replacements available on the market with a 25mm shaft length, 6mm diameter round shaft, and integrated switch. ​ If you're unable to obtain exact replacement encoders, the Bourns PEC11L-4225F-S0015 and PEC11L-4125F-S0020 encoders are offered by Mouser. ​ They work okay, with detents (clicks) as you turn them, but with a bit faster action than the originals. ​ I used the S0020 encoder but believe the S0015 would be slightly preferable with a slower pulse rate.  There may be two pulses per detent so it can be tricky setting the value precisely, between detents. ​ If you know of another encoder source, please contact N1EU so this page can be updated.  ​
  
 Caution: do not attempt encoder replacement unless you are capable and confident in doing the disassembly and PCB component removal. ​ This is a fairly involved disassembly and fairly demanding component removal/​install. Caution: do not attempt encoder replacement unless you are capable and confident in doing the disassembly and PCB component removal. ​ This is a fairly involved disassembly and fairly demanding component removal/​install.

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