Mirrors

Oregon Star Party 2019 and Beta Drifter

It’s been a while, so there are two big things to cover. #1, showing off the beta Drifter at Oregon Star Party. #2, yes the beta Drifter is born–what’s been changed and how does it work? Oregon Star Party 2019 came and left quicker than Oumuamua but what an incredible weekend! Analog Sky set up…

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Drifter Alpha Short Takes

Here in Western Oregon we are in the cloudy part of the year when observing sessions are few and far between. This gives rise to arguably the world’s most innovative telescope making scene, but also makes it hard to test prototypes. Still, I’ve had a few great sessions that taught me a lot. #1 Dew-Session…

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Analog Sky Drifter Prototype 1 Notes

So it’s been a while since I updated this blog. That’s because the Drifter prototype 1 was finished 8-12 months ahead of schedule, in time for Oregon Star Party (OSP) 2018. I was too busy building it to post any updates. Many thanks to Jerry Oltion for helping me out of three or four jambs,…

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Tertiary Mirror Mounting Jig

3D Printing can help us build things easier. Here’s a jig for mounting the tertiary mirror: The mirror sits flat, face down. Small slots hold 2mm shafts for spacing. The slots create a range of heights for the shafts so we don’t have to worry about the exact thickness of the mirror or creating a…

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Primary Mirror Linear Bearings

There has been progress with the second round of focuser prints, but I’m going to take a moment to sidetrack to the primary mirror linear bearings. This is for adjustment of primary mirrors to make sure the images merge into one stereo picture rather than two side-by-side. Up to this point, I’ve been planning to…

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New mirror size, Augment electronics

I’ve been working a lot on the Drifter, but have not been posting updates. Goodbye 6″, Hello 8″ After a lot of deliberation, I’ve bumped up the mirror size to 8″ (200mm). 6″ mirrors + 2″ optics would have presented a stunningly wide true field of view (TFOV), but at the cost of too much…

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