This is part 5 in the belt modification project, which I have split into seven parts.
In this part I remove the old brass gear from the declination worm shaft and replace it with an aluminium pulley for the belt. I also install the belt itself.
After that, I replace the modified dec worm housing into the main upper housing, which is on the tripod with the RA axis from the previous part.
Although bearings are not part of the Rowan Astronomy belt mod it, I take the opportunity to replace the bearings on the worm shafts, replacing them with SKF 608-2RSH bearings.
In astrophotography, replacing a chain of gears with a single belt in an equatorial mount addresses the problem of backlash. After this modification, the only mechanical transmission left is the worm gear, and this is adjustable for backlash.
Backlash in your astrophotography mount prevents an autoguider (such as PHD2) from making fast adjustments, especially in declination. This is because reversing the direction your mount is moving involves a delay when the gears take up the backlash. The more backlash, the slower your autoguider is to compensate when the guide star drifts, and the worse your tracking is.
The product I'm using is the Rowan Astronomy Belt Kit for EQ6 NEQ6 EQ6Pro NEQ6Pro and Orion Atlas EQ-G with Synscan goto drives. (www.rowanastronomy.com/)
Disclaimer: This video is offered with good intentions only and have no monetary or otherwise ramifications for OpticsCentral/Bill. Neither OpticsCentral nor Bill Stent is to be held responsible for damages inflicted on your gear as a result of following these instructions (spoken, written or inferred). Please exercise caution when doing this mod!
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Негізгі бет Ғылым және технология Belt modifying an NEQ-6 pro astrophotographic mount - Part 5
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