Thread: Barn door star tracker
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Old 02-07-2013, 12:04 PM
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bojan
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And, be aware that SoundStepper corrects for NPE (Non Periodic Error) introduced by straight screw and single arm .. ..
However, curved screw rod is very easy to make.
Last edited by bojan; 02-07-2013 at 12:15 PM.
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