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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.