Thanks for the replies so far,
Quote:
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Is the focuser a crayford style? If so is it slipping as it is racked inwards?
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It is the focuser on the Orion eon 115mm
"Rock-solid, rotatable 3" dual-speed (11:1)
Crayford focuser provides precise focus control and stable support of imaging accessories"
With regards the slippage, there is a tensioner on the telescope to put pressure on the mechanism, would you say this needs slackening?
I will look into the slippage/backlash, they sound like things i can fix or deal with.
Thanks Bojan for the suggestion on the encoders, hopefully it's not those but i now have them in mind.
Jack