| Joined: | Mon Apr 2nd, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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In image 7 (and others), the silver dial around the Polar scope is numbered 1-24 effectively, that relates to hours, when locked to the running motor, the arm rotates at 24 hours per revolution. That dial can be turned independently of anything else and can be set to time of day.
The graduations on the original mount which is green Hammerite are used to set the rotary adjustment of the polar scope, in combination with the hours on the movable disk AND a mark etched on the polar scope itself.
This is a screenshot of the Vixen Manual, page#12. It explains the procedure in detail.
[/url]My brain is going into meltdown with that description. I think that this also requires star charts as well as the hardware. The movement of Polaris is also indicated in the final figure, #10 at bottom right. It's not as much as I thought.
The applicable procedure starts at item 6 I think but I very quickly get lost in the nonsensical text/reality.
My EQ mount is not exactly the same as the one illustrated but in essence near enough. The one below is 1986, the one in the manual is 1995, nine years newer. Mine is older than both.
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Robert.