This issue is part of what the Belleville disc springs resolves by taking up all backlash axially. the worm axels are sized as they are for the real world and ease of maintenance and replacement. These bearings are consumables and as such are replaced as they get dirty and noisy. For visual users none of this makes any difference at all as you can barely even measure a difference in PE using PHD2. But it is there if you want to "fix" it.? ? ?
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Chip Louie Chief Daydreamer Imagination Hardware?
? ?Astropheric Weather Forecast - South Pasadena, CA?
Chip Louie