Thread: PHD guiding
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Old 30-04-2014, 12:16 AM
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mithrandir (Andrew)
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Quote:
Originally Posted by acarleton View Post
never mind the essay, any help is appreciated. i have played around with the balance, getting it just right, even so, an unbalanced scope wouldnt result in the RA and dec worms following each other. it certainly does seem like a polar alignment issue, i thought i had it fairly well polar aligned but that might not be true. i will give it another go tomorrow.
You should also know that perfect balance is a guiding nuisance. Any slack in the gearing means the motors don't always have control of the mount. (There must be some slack otherwise temperature changes will jam the gears.)
You want the balance to be slightly heavy on the east side - which means rebalancing after crossing the meridian. This means the RA motor is always pushing the load.
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