Quote:I'll be waiting for v2.0
David Giles Opticsmart.com - Home of Apertura Dobsonian Telescopes, and other cool stuff...
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Quote:Other than a custom-made light, what other developments did you have in mind?
Quote:I'm thinking more about this, and I'm trying to think of ways that you could keep production costs down- yet keep the quality of the product the same. I'm not sure how much bigger each base is for the GSO scopes, but perhaps you can make a version that is universal to all three GSO sizes. I'm picturing a design where you have three inner sections, each with a corresponding degree circle platform. Perhaps you could alternate between black and white on the setting circles to help differentiate between the different ring sizes- or you could just use this as an overall base design and install the appropriate sized degree circle to order. Does that sound doable?
Quote:It sounds like you pictured my idea exactly (glad I didn't confuse you)! The only thing I'd emphasize is that you would still only have one inlayed degree circle per product since that would be the only item that would be placed per order based on the size the customer requested. And indeed, I was also referring to helping the cost of dividing sales volume with the injection mold process of a one-size-fits-three design. I was also sort of suggesting a one-size-fits-three for each of the other brands as well, so you'd have a total of about 4 instead of 12 products. The 16" dobs would still be the one-offs though.Well, I'll let you know if I come up with anything else. I don't have any experience with polymers, but I wonder if a poured polymer would work in place of injection molding. Seems like you could make your own molds as needed that way possibly?I'll most likely be placing my order for one of the 10" GSO versions next week by the way. --Steve
My eyepieces are made from the waste product of exploding stars.
10XTi 102XLT ST80A(2" Focuser); President, Eypieces Anonymous, Denver Chapter (Hello, I'm an eyepiece junky, what's your excuse?)
DAS Dark Site
Quote:For best results, you don't align your 0* with a compass, you align it with Polaris as viewed with a high power eyepiece- and even then you want to see if Polaris is at 0* or 359* that particular night. At least that's how I've been doing it- and it seems to keep me spot on with everything in SkySafari. Having a perfectly level dob bass is also critical.
DreamCatcher Dobservatory/AstroTech 16" dob.
Quote:Quote:For best results, you don't align your 0* with a compass, you align it with Polaris as viewed with a high power eyepiece- and even then you want to see if Polaris is at 0* or 359* that particular night. At least that's how I've been doing it- and it seems to keep me spot on with everything in SkySafari. Having a perfectly level dob bass is also critical. Agreed, centering Polaris with a high power eyepiece is the first step; then set the pointer to "0".
Quote:I just noticed that my iphone autocorrected the word base to bass on my last post. What a "dob bass" this phone is sometimes. Oh well.
CG5ASGT Astro-Tech AT6RC Zhumell 10 inch dob deluxe kit 10x12 observatory Echo Astronomy maker of Custom bahtinov masks and Duncan collimation masks.
Quote:Just a thought for the waste, while you are cnc routing why not design some eyepiece holders that can be made from the scrap in the center? Route them out first then the rings.
Quote:Oh yes, now I remember ... I read about the Bas-Cas in a recent issue of ATT
Quote:You're killing me over here David.
Quote:Well, I just pulled the trigger and bought one for my Z10. I'm hoping to have it by next weekend- where I can show it off to some friends who are also dob owners. I'm looking forward to possibly writing a review for CN as well.
Quote:Hey David, It just occurred to me that I would actually need two of the magnetic strips and pointer assemblies for the one Halo. I have two dob bases in two different cities and I travel back and forth with the OTA. Can I get another pointer kit with my order?
Quote:Is there some reason a version that had no central cutout, so it could be used as a "traditional" 3-Teflon-pad ground board, doesn't work?
Ron NS11GPS Pronto
16" dob Vixen NA140SS
127mm F9 Surplus Shed/Crawmach kit scope
Best of ATM
Quote:Did you ever consider making it out of arch segments (1/3 or 1/4 of a circle) then joining with a half lap or bridle joint? Less waste, but more labor and you'd need to buy adhesive. Probably epoxy.
Quote:I've never done a segment; always felt a monolithic design was stronger; an easier to make. On the other hand, all that waste in the middle of the cut out drives me bonkers.
Quote:But it hardly takes a mole; these are tried and true fabrication methods in woodworking. Especially if you follow Chris over on Popular Woodworking. But hey, always nice to have several ways to skin a cat.
Quote:They do look good though. I'm thinking about adapting my dob rebuild using one of these. I really like the idea - frankly it's one of those things I wish I had thought of.
One 'scope at a time... "Onward! Ever forward, never straight!" - T. McMahon
Quote:Oooh, that IS an interesting failure mode. If the feet are not dialed out too much (keep their moment arm short) but one would have to see it in person and flex it to see how likely this would be. Just an off the cuff observation the material looks thick enough to resist this but still. Interesting.