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In fact, on second thought, instead of stocking several different pre-cut diameters perhaps you can produce say a single 36" diameter sheet with a dozen or so setting circles in successive smaller diameters printed on it. The DIY'er can then cut out whatever size needed for the project and slap it right on the groundboard.

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Getting a bit more complicated (as brain storming sessions are want to do ) but a digit setting circle with an LCD readout that could be placed where the use would like it. But nixie lights would be uber cool.

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Oh yeah, those nixie tubes are sweet! And a HALO all tricked-out like that would definitely have a very cool "retro-modern" look to it! Not sure anybody would buy a HALO made that way, but it would sure make a nice conversation piece.

David Giles
Opticsmart.com

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Numbered boutique run for us snobs. You could sign it and call it your Signature Line.

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I like your thinking! And while we're at it, we could make the HALO out of some exotic wood. Imagine a beautiful Ebony with a highly polished finish. With matching hand-carved knobs on the leveling feet.
With the DSC, nixie tube readouts, and exotic wood, you could own the first $1,000 HALO Ron!

David Giles
Opticsmart.com

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That's why I'm still not ruling out a Halo for my 16"; as it's the same idea, only much more updated. I'm even considering having someone cut out the inner circle that holds the base, & just having the Halo encircle the base, not supporting the dob. This way it could be moved to incorporate "North", at will. This is just one of the ideas I'm considering, since I really don't need the leveling feet for the dob, when it's permanently in place, already level.

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Hey Carol, if we make you a HALO without the leveling feet, you could simply attach it to your Dob base with wood screws (from the bottom) as seen in this image:





You would simply need to turn your base over, set the HALO on it, and drill through the shelf of the HALO into your Dob base with the appropriate size drill bit for the wood screws that you want to use (making sure not to drill all the way through the Dob base). 1" long, #6 woods screws would be the right choice.

In a previous post you said "There's less than 3/4" space between the floor & the base." As long as there is just a tiny bit more than 1/2" of space (like 17/32"), then your Dob's feet would still rest on your concrete slab. With this kind of setup, the HALO wouldn't be supporting your Dob base - instead your Dob base would be "wearing" the HALO like a skirt.

Now of course, this kind of installation wouldn't allow you to independently rotate the HALO on the groundboard, but I wouldn't think that would be necessary in your particular installation. You would simply set your base up one time so that it is pointed perfectly north and then you shouldn't have to mess with it anymore (if I'm understanding your setup correctly).

David Giles
Opticsmart.com

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David, indeed that will work!! As you mentioned, it would only be a one-time setup; no need to re-adjust it further.

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Ooooh, nice base! Looks like there will be conflict with the installed feet you have there. Which by themselves is a nice touch to the base.

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Thanks for the close up pics. Those really are nice big numbers! I'll be able to make those out without having to squint or get down closer.

That degree mark layout is perfect for my current new dob base project I'm working on for my Lightbridge 12.

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Beautiful woodwork there Gastrol!!

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