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Old 13-12-2012, 08:22 PM
swannies1983 (Dan)
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Cheapie Tasco refractor focuser

I've been using a 60mm Tasco refractor as my guide scope for a while now. While I do generally get round stars, at least with shorter subs (5mins), getting longer subs (10mins) without elongated stars is the luck of the draw. I think the issue is flexure based on DSS compute offset function. I would put my money on the wobbly focuser being the problem. It doesn't have a locking screw. Is there any way I could stiffen it up or am I wasting my time?
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Old 13-12-2012, 10:58 PM
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cometcatcher (Kevin)
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I put a locking screw in my Tasco 60mm. Works fine.
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Old 14-12-2012, 06:15 AM
swannies1983 (Dan)
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What type of locking screw did you use?
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Old 14-12-2012, 09:01 AM
swannies1983 (Dan)
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I have simply fixed it by putting in a couple of small bits of paper between the focuser tubing and the outer cover. No wobble now BUT there are several broken teeth in the pinion . It still works but the tube can slip if the teeth aren't engaged. At least it's only a webcam that will be attached. I will need to check if there's any slippage when it's connected.
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Old 16-12-2012, 01:22 PM
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Quote:
Originally Posted by swannies1983 View Post
What type of locking screw did you use?
It's a wingnut screw that I had in the junk box. I drilled a hole for it through the focusing tube. May have tapped the thread as well, can't remember now, too long ago!
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